Publications

Jollota, S. P., Radtke, J. L., DeWerd, L. A., & Khan, A. U. (2025). An absorbed dose‐based source strength determination for diffusing alpha‐emitters radiation therapy (DaRT) brachytherapy seeds – Proof of concept. Medical Physics, 52(12), 1–13. https://doi.org/10.1002/mp.70167

Jollota, S. P., Bergeron, D. E., Nupp, A. T., Verkouteren, R. M., Nour, S., Fitzgerald, R. P., Kwon, O., Radtke, J. L., Bednarz, B. P., Miller, B. W., & DeWerd, L. A. (2025). Spatial uniformity and resolution in inkjet-printed 241Am phantoms imaged by digital autoradiography. Applied Radiation and Isotopes, 226(None). https://doi.org/10.1016/j.apradiso.2025.112108

Stern, W., Alaei, P., Berbeco, R., Dewerd, L., Kamen, J., Mackenzie, C., Moros, E., Poirier, Y., Potter, C., Shaue, D., Patallo, I. S., Abend, M., Swarts, S., & Trompier, F. (2025). On the Necessity of Adopting Irradiation Protocols Recommended by the Compatibility in Irradiation Research Protocols Expert Roundtable (CIRPER) in Published Research and Why It Matters to Health Physicists. Health Physics, 129(3), 152–154. https://doi.org/10.1097/HP.0000000000001992

Jollota, S. P., Bergeron, D. E., Verkouteren, R. M., Nour, S., Fitzgerald, R. P., Kwon, O., Radtke, J. L., Bednarz, B. P., Miller, B. W., & DeWerd, L. A. (2025). Gravimetric drop-on-demand inkjet deposition for imaging phantoms with traceable activity. Applied Radiation and Isotopes, 218(None). https://doi.org/10.1016/j.apradiso.2025.111683

Khan, A. U. (2025). On the spectral changes of magna-field photon beams used in total body irradiation and impact on dosimetry. Journal of Applied Clinical Medical Physics, 26(12), e70377. https://doi.org/10.1002/acm2.70377

Khan, A. U. (2025). Impact of magnetic fields on small field dosimetry for parallel MR- linacs. Medical Physics, 52(8), e18052. https://doi.org/10.1002/mp.18052

Das, I. J., Khan, A. U., & Yadav, P. (2025). Small-field output factor dependence on the field size definition in MR- Linac. Medical Physics, 52(7), e17857. https://doi.org/10.1002/mp.17857

Wake, K. K., Bennett, L. C., Smith, B. R., Culberson, W. S., Hyer, D. E., Flynn, R. T., Patwardhan, K. A., Nelson, N. P., & Hill, P. M. (2025). The Cut-Sort-Group algorithm for efficient delivery of collimated step-and-shoot proton arc therapy. Medical Physics, 52(7). https://doi.org/10.1002/mp.17889

White, A. J., Hammer, C. G., Brenner, M. W., DeWerd, L. A., Stump, K. E., & Culberson, W. S. (2025). Accounting for TLD response to CBCT protocols in external beam radiotherapy dose monitoring. Journal of Applied Clinical Medical Physics, 26(6). https://doi.org/10.1002/acm2.70103

Cao, X., Parks, A., Thomas, W., Reed, M. S., Culberson, W. S., & Pogue, B. W. (2025). Hydrated electron yield dependence on instantaneous dose rates with electron ultra-high dose rate (UHDR) irradiation. Physics in Medicine and Biology, 70(12). https://doi.org/10.1088/1361-6560/ade223

Stasko, J. T., & Culberson, W. S. (2025). Attix free-air chamber correction factors computed using EGSnrc. Medical Physics, 52(4), 1991–1996. https://doi.org/10.1002/mp.17629

Ilina, A., Thomas, W. S., Cao, X., Reed, M. S., Jarvis, K., van der Kogel, A., van Asselt, N., Culberson, W. S., & Pogue, B. W. (2025). FLASH effect is diminished by daily fractionation of electron RT in mouse skin. Physics in Medicine and Biology, 70(23). https://doi.org/10.1088/1361-6560/ae205e

Stasko, J. T., & Culberson, W. S. (2025). X-ray multimeter performance under calibration laboratory conditions. Medical Physics, 52(9). https://doi.org/10.1002/mp.18106

Orlando, N., Crosby, J., Glide-Hurst, C., Culberson, W., & Sarfehnia, A. (2025). Magnetic field quality conversion factors experimentally measured in clinical MR-linac beams for seven MR-compatible ionization chamber models. Journal of Applied Clinical Medical Physics, 26(3). https://doi.org/10.1002/acm2.14613

DeWerd, L. A., de Almeida, C. E., de Araújo, O. M. O. O., Pius Vincent, K. R., Khan, A. U., Franco, L., Lopes, R. T., Vincent, K. R. P., Khan, A. U., Franco, L., & Lopes, R. T. (2025). Determination of the sensitive volume of a spherical ion chamber as a potential primary standard instrument for higher energy photon beams. Radiation Measurements, 183(None). https://doi.org/10.1016/j.radmeas.2025.107416

Khan, A. U., Jollota, S., & DeWerd, L. A. (2024). A diffusion-leakage model coupled with dose point kernels (DPK) for dosimetry of diffusing alpha-emitters radiation therapy (DaRT). Medical Physics, 51(5), 3725–3733. https://doi.org/10.1002/mp.16960 

Khan, A. U., Radtke, J., & DeWerd, L. (2024). Characterization of a segmented printed circuit board (PCB) as a standard for absorbed dose to water from alpha-emitting radionuclides. Medical Physics, 51(5), 3665–3676. https://doi.org/10.1002/mp.16940

Das, I. J., Khan, A. U., Lim, S., Yadav, P., Donnelley, E., & Mittal, B. B. (2024). An investigation of high-Z material for bolus in electron beam therapy. Biomedical Physics & Engineering Express, 11(1). https://doi.org/10.1088/2057-1976/ad9c7c 

Khan, A. U., Sengupta, B., & Das, I. J. (2024). The role of volume averaging effects, beam hardening, and phantom scatter in dosimetry of grid therapy. Physics in Medicine and Biology, 69(22). https://doi.org/10.1088/1361-6560/ad8c91 

Khan, A. U., Das, I. J., & Yadav, P. (2024). Computational and experimental small field dosimetry using a commercial plastic scintillator detector for the 0.35 T MR-linac. Physica Medica : PM : An International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB), 123, 103403. https://doi.org/10.1016/j.ejmp.2024.103403 

Das, I. J., Khan, A. U., Dogan, S. K., & Longo, M. (2024). Grid/lattice therapy: consideration of small field dosimetry. The British Journal of Radiology, 97(1158), 1088–1098. https://doi.org/10.1093/bjr/tqae060 

Khan, A. U., & Das, I. J. (2024). Dependence of surface dose on atomic number in megavoltage photon beams. Medical Physics, 51(8), 5746–5753. https://doi.org/10.1002/mp.16979 

Ullah Khan, A., DeWerd, L. A., & Yadav, P. (2024). Beam quality correction factors for ionization chambers in a 0.35 T magnetic resonance (MR)-linac – A Monte Carlo study. Physica Medica : PM : An International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB), 119, 103314. https://doi.org/10.1016/j.ejmp.2024.103314 

Desai, V., Labby, Z., Culberson, W., DeWerd, L., & Kry, S. (2024). Multi-institution single geometry plan complexity characteristics based on IROC phantoms. Medical Physics, 51(8), 5693–5707. https://doi.org/10.1002/mp.17086 

Bertinetti, A., Garcia, T., Palmer, B., Rodrigues, M., Bradshaw, T., Vija, A. H., & Culberson, W. (2024). Active and passive dosimetry for beta-emitting radiopharmaceutical therapy agents in a custom SPECT/CT compatible phantom. Physics in Medicine and Biology, 69(11). https://doi.org/10.1088/1361-6560/ad450c 

White, A. J., Jollota, S. P., Hammer, C. G., Khan, A. U., DeWerd, L. A., & Culberson, W. S. (2024). Thermoluminescent dosimeters (TLD-100) for absorbed dose measurements in alpha-emitting radionuclides. Applied Radiation and Isotopes, 208(None). https://doi.org/10.1016/j.apradiso.2024.111307 

Bertinetti, A., Palmer, B., Bradshaw, T., & Culberson, W. (2024). Investigation of a measurement-based dosimetry approach to beta particle-emitting radiopharmaceutical therapy nuclides across tissue interfaces. Physics in Medicine and Biology, 69(12). https://doi.org/10.1088/1361-6560/ad4f49 

Orlando, N., Crosby, J., Glide-Hurst, C., Culberson, W., Keller, B., & Sarfehnia, A. (2024). Experimental determination of magnetic field quality conversion factors for eleven ionization chambers in 1.5 T and 0.35 T MR-linac systems. Medical Physics, 51(4), 2998–3009. https://doi.org/10.1002/mp.16858 

Watson, P. G. F., Davis, S., & Culberson, W. S. (2024). Technical note: Determination of CQ for a miniature x-ray source using a soft x-ray ionization chamber calibrated in NIST reference beam qualities. Medical Physics, 51(11), 8597–8601. https://doi.org/10.1002/mp.17345 

Bennett, L. C., Hyer, D. E., Vu, J., Patwardhan, K., Erhart, K., Gutierrez, A. N., Pons, E., Jensen, E., Ubau, M., Zapata, J., Wroe, A., Wake, K., Nelson, N. P., Culberson, W. S., Smith, B. R., Hill, P. M., & Flynn, R. T. (2024). Patient-specific quality assurance of dynamically-collimated proton therapy treatment plans. Medical Physics, 51(9), 5901–5910. https://doi.org/10.1002/mp.17295 

Niver, A. P., Hammer, C. G., Culberson, W. S., Jacqmin, D., & Pogue, B. W. (2024). Non-contact scintillator imaging dosimetry for total body irradiation in radiotherapy. Physics in Medicine and Biology, 69(3). https://doi.org/10.1088/1361-6560/ad1a23 

Johnson, H. R., Gunder, L. C., Gillette, A., Sleiman, H., Rademacher, B. L., Meske, L. M., Culberson, W. S., Micka, J. A., Favreau, P., Yao, E., Matkowskyj, K. A., Skala, M. C., & Carchman, E. H. (2024). Preclinical Models of Anal Cancer Combined-Modality Therapy. Journal of Surgical Research, 294(None), 82–92. https://doi.org/10.1016/j.jss.2023.09.053

Khan, A. U., Radtke, J., Hammer, C., Malyshev, J., Morris, B., Glide-Hurst, C., DeWerd, L., Culberson, W., & Bayliss, A. (2024). Dose-rate dependence and IMRT QA suitability of EBT3 radiochromic films for pulse reduced dose-rate radiotherapy (PRDR) dosimetry. Journal of Applied Clinical Medical Physics, 25(1). https://doi.org/10.1002/acm2.14229 

Liu, K., Holmes, S., Khan, A. U., Hooten, B., DeWerd, L., Schüler, E., & Beddar, S. (2024). Development of novel ionization chambers for reference dosimetry in electron flash radiotherapy. Medical Physics, 51(September), 1–15. https://doi.org/10.1002/mp.17425 

Stern, W., Alaei, P., Berbeco, R., DeWerd, L. A., Kamen, J., MacKenzie, C., Moros, E. G., Poirier, Y., Potter, C. A., Schaue, D., Patallo, I. S., Abend, M., Swarts, S., & Trompier, F. (2024). Achieving Consistent Reporting of Radiation Dosimetry by Adoption of Compatibility in Irradiation Research Protocols Expert Roundtable (CIRPER) Recommendations. International Journal of Radiation Biology, 100(6), 267–269. https://doi.org/10.1080/09553002.2024.2331130 

Khan, A. U., Simiele, E. A., Lotey, R., DeWerd, L. A., & Yadav, P. (2023). An independent Monte Carlo–based IMRT QA tool for a 0.35 T MRI‐guided linear accelerator. Journal of Applied Clinical Medical Physics, 24(2), 1–12. https://doi.org/10.1002/acm2.13820

Richardson, S. L., Buzurovic, I. M., Cohen, G. N., Culberson, W. S., Dempsey, C., Libby, B., Melhus, C. S., Miller, R. A., Scanderbeg, D. J., & Simiele, S. J. (2023). AAPM medical physics practice guideline 13.a: HDR brachytherapy, part A. Journal of Applied Clinical Medical Physics, 24(3). https://doi.org/10.1002/acm2.13829

Tegtmeier, R. C., Ferris, W. S., Chen, R., Miller, J. R., Bayouth, J. E., & Culberson, W. S. (2023). Evaluating on-board kVCT- and MVCT-based dose calculation accuracy using a thorax phantom for helical tomotherapy treatments. Biomedical Physics and Engineering Express, 9(2). https://doi.org/10.1088/2057-1976/acb93f

Walter, A. E., & DeWerd, L. A. (2023). Determination of an air kerma-rate correction factor for the S7600 Xoft AxxentⓇ source model. Brachytherapy, 22(4), 512–517. https://doi.org/10.1016/j.brachy.2023.02.005

Ma, C. M., Coffey, C. W., DeWerd, L. A., Liu, C., Nath, R., Seltzer, S. M., & Seuntjens, J. P. (2023). Erratum to: AAPM protocol for 40-300 kV x-ray beam dosimetry in radiotherapy and radiobiology (Medical Physics, (2001), 28, 6, (868-893), 10.1118/1.1374247). Medical Physics, 50(6), 3886-None. https://doi.org/10.1002/mp.16239

Walter, A. E., & DeWerd, L. A. (2023). Feasibility of implementing a megavoltage ionization chamber calibration service at the secondary standards level. Radiation Physics and Chemistry, 204(None). https://doi.org/10.1016/j.radphyschem.2022.110699

Khan, A. U., Simiele, E. A., Lotey, R., DeWerd, L. A., & Yadav, P. (2023). An independent Monte Carlo–based IMRT QA tool for a 0.35 T MRI-guided linear accelerator. Journal of Applied Clinical Medical Physics, 24(2). https://doi.org/10.1002/acm2.13820

Adam, D. P., Hammer, C., Malyshev, J. Z., Culberson, W. S., Bradshaw, T. J., Grudzinski, J. J., Harari, P. M., & Bednarz, B. P. (2023). Creation of waterproof, TLD probes for dose measurements to validate image-based radiopharmaceutical therapy dosimetry workflow. Biomedical Physics and Engineering Express, 9(4). https://doi.org/10.1088/2057-1976/accf22

Bennett, L. C., Hyer, D. E., Erhart, K., Nelson, N. P., Culberson, W. S., Smith, B. R., Hill, P. M., & Flynn, R. T. (2023). PETRA: A pencil beam trimming algorithm for analytical proton therapy dose calculations with the dynamic collimation system. Medical Physics, 50(11), 7263–7280. https://doi.org/10.1002/mp.16559

Stasko, J. T., Ferris, W. S., Adam, D. P., Culberson, W. S., & Frigo, S. P. (2023). IMRT QA result prediction via MLC transmission decomposition. Journal of Applied Clinical Medical Physics, 24(8). https://doi.org/10.1002/acm2.13990

Walter, A. E., Khan, A. U., & DeWerd, L. A. (2023). Measurement of the modified TG43 parameters for the bare S7600 Xoft Axxent source model. Brachytherapy, 22(2), 260–268. https://doi.org/10.1016/j.brachy.2022.11.010

Nelson, N. P., Culberson, W. S., Hyer, D. E., Geoghegan, T. J., Patwardhan, K. A., Smith, B. R., Flynn, R. T., Yu, J., Gutiérrez, A. N., & Hill, P. M. (2023). Dosimetric delivery validation of dynamically collimated pencil beam scanning proton therapy. Physics in Medicine and Biology, 68(5). https://doi.org/10.1088/1361-6560/acb6cd

Treb, K., Radtke, J., Culberson, W. S., & Li, K. (2023). Simultaneous photon counting and charge integrating for pulse pile-up correction in paralyzable photon counting detectors. Physics in Medicine and Biology, 68(15). https://doi.org/10.1088/1361-6560/ace2a9

Khan, A. U., Nelson, N. P., Culberson, W. S., & DeWerd, L. A. (2023). On the perturbation effect and LET dependence of beam quality correction factors in carbon ion beams. Medical Physics, 50(2), 1105–1120. https://doi.org/10.1002/mp.16089

Bertinetti, A., Rodrigues, M., Palmer, B., Garcia, T. R., Vija, A. H., & Culberson, W. (2023). Validation of Monte Carlo simulated absorbed-dose-to-water inside a custom SPECT/CT phantom using active and passive dosimeters: a feasibility study using 99mTc. Physics in Medicine and Biology, 68(8). https://doi.org/10.1088/1361-6560/acc635

Nelson, N. P., Culberson, W. S., Hyer, D. E., Geoghegan, T. J., Patwardhan, K. A., Smith, B. R., Flynn, R. T., Gutiérrez, A. N., Boland, T., & Hill, P. M. (2023). Integration and dosimetric validation of a dynamic collimation system for pencil beam scanning proton therapy. Biomedical Physics and Engineering Express, 9(6). https://doi.org/10.1088/2057-1976/ad02ff

Khan, A. U., Radtke, J., Palmer, B., Hull, J., Kunugi, K., & DeWerd, L. (2023). Development and evaluation of a standard for absorbed dose to water from alpha-particle-emitting radionuclides. Metrologia, 60(6). https://doi.org/10.1088/1681-7575/acfb89

Walter, A. E., Cosper, P. F., Nickel, K. P., Ramesh, S., Khan, A. U., DeWerd, L. A., & Kimple, R. J. (2023). Biological Characterization of the Effects of Filtration on the Xoft Axxentt Electronic Brachytherapy Source for Cervical Cancer Applications. Radiation Research, 199(5), 429–438. https://doi.org/10.1667/RADE-22-00112.1

Trompier, F., DeWerd, L. A., Poirier, Y., Santos, M. Dos, Sheng, K., Kunugi, K. A., Winters, T. A., Dicarlo, A. L., Satyamitra, M. M., DeWerd, L. A., Trompier, F., Santos, M. Dos, Sheng, K., Kunugi, K. A., Satyamitra, M. M., Dicarlo, A. L., & Winters, T. A. (2023). Minimum Reporting Standards Should be Expected for Preclinical Radiobiology Irradiators and Dosimetry in the Published Literature. International Journal of Radiation Biology, 100(1), 217–222. https://doi.org/10.1080/09553002.2023.2250848

Tegtmeier, R. C., Ferris, W. S., Bayouth, J. E., & Culberson, W. S. (2022). Performance evaluation of image reconstruction algorithms for a megavoltage computed tomography system on a helical tomotherapy unit. Biomedical Physics & Engineering Express, 8(4), 047001. https://doi.org/10.1088/2057-1976/ac7584

Nelson, N. P., Culberson, W. S., Hyer, D. E., Smith, B. R., Flynn, R. T., & Hill, P. M. (2022). Investigating aperture-based approximations to model a focused dynamic collimation system for pencil beam scanning proton therapy. Biomedical Physics & Engineering Express, 8(2), 025016. https://doi.org/10.1088/2057-1976/ac525f 

Ferris, W. S., DeWerd, L. A., & Culberson, W. S. (2022). Fiducial visibility on planar images during motion-synchronized tomotherapy treatments. Biomedical Physics & Engineering Express, 8(2), 027001. https://doi.org/10.1088/2057-1976/ac4b3e

Walter, A. E., Hull, J. L., & DeWerd, L. A. (2022). Comparison of air kerma rate between the S7500 and S7600 xoft axxent sources. Brachytherapy, 21(3), 354–361. https://doi.org/https://doi.org/10.1016/j.brachy.2021.12.005 

Muir, B., Culberson, W., Davis, S., Kim, G. G. Y., Lee, S. W., Lowenstein, J., Renaud, J., Sarfehnia, A., Siebers, J., Tantôt, L., & Tolani, N. (2022). AAPM WGTG51 Report 374: Guidance for TG-51 reference dosimetry. Medical Physics, 49(11), 6739–6764. https://doi.org/10.1002/mp.15949

Ferris, W. S., Chao, E. H., Smilowitz, J. B., Kimple, R. J., Bayouth, J. E., & Culberson, W. S. (2022). Using 4D dose accumulation to calculate organ-at-risk dose deviations from motion-synchronized liver and lung tomotherapy treatments. Journal of Applied Clinical Medical Physics, 23(7). https://doi.org/10.1002/acm2.13627

Perez-Calatayud, J., Ballester, F., Tedgren, Å. C., DeWerd, L. A., Papagiannis, P., Rivard, M. J., Siebert, F. A., & Vijande, J. (2022). GEC-ESTRO ACROP recommendations on calibration and traceability of HE HDR-PDR photon-emitting brachytherapy sources at the hospital level. Radiotherapy and Oncology, 176(None), 108–117. https://doi.org/10.1016/j.radonc.2022.09.012 

Dewerd, L. A., Khan, A. U., & Jensen, A. R. (2022). On the length used for CT ionization chambers to determine CTDI. Physics in Medicine and Biology, 67(8). https://doi.org/10.1088/1361-6560/ac60b8

Khan, A. U., Lotey, R., Dewerd, L. A., & Yadav, P. (2022). A multi-institutional comparison of dosimetric data for a 0.35 T MR-linac. Physics in Medicine and Biology, 67(5). https://doi.org/10.1088/1361-6560/ac53df 

King, E. J., Viscariello, N. N., & Dewerd, L. A. (2022). Development of Standard X-Ray Beams for Calibration of Radiobiology Cabinet and Conformal Irradiators. Radiation Research, 197(2), 113–121. https://doi.org/10.1667/RADE-21-00121.1 

Tegtmeier, R. C., Ferris, W. S., Bayouth, J. E., Miller, J. R., & Culberson, W. S. (2022). Characterization of imaging performance of a novel helical kVCT for use in image-guided and adaptive radiotherapy. Journal of Applied Clinical Medical Physics, 23(6). https://doi.org/10.1002/acm2.13648 

Stasko, J. T., Hammer, C. G., & Culberson, W. S. (2022). The Effect of Mouse Size on Dose from an X-Rad320 Irradiator. Radiation Research, 197(6), 650–654. https://doi.org/10.1667/RADE-21-00119.1 

Ferris, W. S., Culberson, W. S., & Bayouth, J. E. (2022). Technical note: Tracking target/chest relationship changes during motion-synchronized tomotherapy treatments. Medical Physics, 49(6), 3990–3998. https://doi.org/10.1002/mp.15667 

Khan, A. U., DeWerd, L. A., Das, I. J., & Yadav, P. (2022). A multi-institutional comparison of acceptance testing data for a 0.35 T MRI scanner. Physics in Medicine & Biology, 67(23), 235005. https://doi.org/10.1088/1361-6560/aca3f7 

Bednarz, B. P., Jupitz, S., Lee, W., Mills, D., Chan, H., Fiorillo, T., Sabitini, J., Shoudy, D., Patel, A., Mitra, J., Sarcar, S., Wang, B., Shepard, A., Matrosic, C., Holmes, J., Culberson, W., Bassetti, M., Hill, P., McMillan, A., … Foo, T. K. (2021). First-in-human imaging using a MR-compatible e4D ultrasound probe for motion management of radiotherapy. Physica Medica, 88, 104–110. https://doi.org/https://doi.org/10.1016/j.ejmp.2021.06.017 

Matrosic, C. K., Culberson, W., Shepard, A., Jupitz, S., & Bednarz, B. (2021). 3D dosimetric validation of ultrasound-guided radiotherapy with a dynamically deformable abdominal phantom. Physica Medica, 84, 159–167. https://doi.org/https://doi.org/10.1016/j.ejmp.2021.04.007

Smith, B. R., Khan, A., & Culberson, W. S. (2021). Commissioning a compact, tabletop EPR spectrometer for alanine dosimetry. Radiation Measurements, 146(May), 106629. https://doi.org/10.1016/j.radmeas.2021.106629

Khan, A. U., Simiele, E. A., Lotey, R., DeWerd, L. A., & Yadav, P. (2021). Development and evaluation of a GEANT4‐based Monte Carlo Model of a 0.35 T MR‐guided radiation therapy (MRgRT) linear accelerator. Medical Physics, 48(4), 1967–1982. https://doi.org/10.1002/mp.14761 

Chinnadurai, R., Bates, P. D., Kunugi, K. A., Nickel, K. P., DeWerd, L. A., Capitini, C. M., Galipeau, J., & Kimple, R. J. (2021). Dichotomic Potency of IFNγ Licensed Allogeneic Mesenchymal Stromal Cells in Animal Models of Acute Radiation Syndrome and Graft Versus Host Disease. Frontiers in Immunology, 12. https://doi.org/10.3389/fimmu.2021.708950 

Vijande, J., Carlsson Tedgren, Å., Ballester, F., Baltas, D., Papagiannis, P., Rivard, M. J., Siebert, F.-A., De Werd, L., & Perez-Calatayud, J. (2021). Source strength determination in iridium-192 and cobalt-60 brachytherapy: A European survey on the level of agreement between clinical measurements and manufacturer certificates. Physics and Imaging in Radiation Oncology, 19, 108–111. https://doi.org/10.1016/j.phro.2021.07.007

DeWerd, L. A., & Kunugi, K. (2021). Accurate Dosimetry for Radiobiology. International Journal of Radiation Oncology Biology Physics, 111(5), e75–e81. https://doi.org/10.1016/j.ijrobp.2021.09.002 

Lambeck, J., Kennan, W., & DeWerd, L. A. (2021). Effect of well chamber altitude pressure corrections for cesium Blu 131Cs and CivaDot 103Pd brachytherapy sources. Medical Physics, 48(10), 5584–5592. https://doi.org/10.1002/mp.15190 

Khan, A. U., & DeWerd, L. A. (2021). Evaluation of the GEANT4 transport algorithm and radioactive decay data for alpha particle dosimetry. Applied Radiation and Isotopes, 176(None). https://doi.org/10.1016/j.apradiso.2021.109849

Petti, P. L., Rivard, M. J., Alvarez, P. E., Bednarz, G., Bourland, J. D., DeWerd, L. A., Drzymala, R. E., Johansson, J., Kunugi, K., Ma, L., Meltsner, S. G., Neyman, G., Seuntjens, J. P., Shiu, A. S., & Goetsch, S. J. (2021). Recommendations on the practice of calibration, dosimetry, and quality assurance for gamma stereotactic radiosurgery: Report of AAPM Task Group 178. Medical Physics, 48(7), e733–e770. https://doi.org/10.1002/mp.14831

Khan, A. U., & Dewerd, L. A. (2021). A Monte Carlo Investigation of Dose Point Kernel Scaling for α-Emitting Radionuclides. Cancer Biotherapy and Radiopharmaceuticals, 36(3), 252–259. https://doi.org/10.1089/cbr.2020.4542 

Khan, A. U., Simiele, E. A., Lotey, R., DeWerd, L. A., & Yadav, P. (2021). Development and evaluation of a GEANT4-based Monte Carlo Model of a 0.35 T MR-guided radiation therapy (MRgRT) linear accelerator. Medical Physics, 48(4), 1967–1982. https://doi.org/10.1002/mp.14761

Simiele, E., Viscariello, N., & DeWerd, L. (2021). Monte Carlo modeling of the influence of strong magnetic fields on the stem-effect in plastic scintillation detectors used in radiotherapy dosimetry. Medical Physics, 48(3), 1381–1394. https://doi.org/10.1002/mp.14637

Khan, A. U., & DeWerd, L. A. (2021). A Monte Carlo Investigation of Dose Point Kernel Scaling for alpha- Emitting Radionuclides. Cancer Biotherapy & Radiopharmaceuticals, 36(3), 252–259. https://doi.org/10.1089/cbr.2020.4542

Nelson, N. P., Culberson, W. S., Hyer, D. E., Geoghegan, T. J., Patwardhan, K. A., Smith, B. R., Flynn, R. T., Yu, J., Rana, S., Gutiérrez, A. N., & Hill, P. M. (2021). Development and validation of the Dynamic Collimation Monte Carlo simulation package for pencil beam scanning proton therapy. Medical Physics, 48(6), 3172–3185. https://doi.org/10.1002/mp.14846

Ferris, W. S., DeWerd, L. A., Bayouth, J. E., & Culberson, W. S. (2021). Technical note: On the impact of the kV imaging configuration on doses from planar images during motion-synchronized treatments on Radixact®. Journal of Applied Clinical Medical Physics, 22(9), 227–231. https://doi.org/10.1002/acm2.13371

Ferris, W. S., Culberson, W. S., Smilowitz, J. B., & Bayouth, J. E. (2021). Effects of variable-width jaw motion on beam characteristics for Radixact Synchrony®. Journal of Applied Clinical Medical Physics, 22(5), 175–181. https://doi.org/10.1002/acm2.13234 

Khan, A. U., Simiele, E. A., & DeWerd, L. A. (2021). Monte Carlo-derived ionization chamber correction factors in therapeutic carbon ion beams. Physics in Medicine & Biology, 66(19), 195003. https://doi.org/10.1088/1361-6560/ac226c 

Walter, A. E., Hansen, J. B., & DeWerd, L. A. (2020). Evaluation of ionization chamber stability checks using various sources. Physica Medica, 80(None), 327–334. https://doi.org/10.1016/j.ejmp.2020.11.010

DiMaso, L. D., Miller, J. R., Lawless, M. J., Bassetti, M. F., DeWerd, L. A., & Huang, J. (2020). Investigating split-filter dual-energy CT for improving liver tumor visibility for radiation therapy. Journal of Applied Clinical Medical Physics, 21(8), 249–255. https://doi.org/10.1002/acm2.12904 

Kry, S. F., Alvarez, P., Cygler, J. E., DeWerd, L. A., Howell, R. M., Meeks, S., O’Daniel, J., Reft, C., Sawakuchi, G., Yukihara, E. G., & Mihailidis, D. (2020). AAPM TG 191: Clinical use of luminescent dosimeters: TLDs and OSLDs. Medical Physics, 47(2), e19–e51. https://doi.org/10.1002/mp.13839 

Khan, A. U., Culberson, W. S., & DeWerd, L. A. (2020). Characterizing a PTW microDiamond detector in kilovoltage radiation beams. Medical Physics, 47(9), 4553–4562. https://doi.org/10.1002/mp.14330

Poirier, Y., Becker, S., Decesaris, C., Culberson, W., Draeger, E., Gerry, A. J., Johnstone, C. D., Gibbs, A., Vujaskovic, Z., & Jackson, I. L. (2020). The Impact of Radiation Energy on Dose Homogeneity and Organ Dose in the Göttingen Minipig Total-Body Irradiation Model. Radiation Research, 194(5), 544–556. https://doi.org/10.1667/RADE-20-00135.1 

Matrosic, C. K., Bednarz, B., & Culberson, W. (2020). An improved abdominal phantom for intrafraction image guidance validation. Physics in Medicine and Biology, 65(13). https://doi.org/10.1088/1361-6560/ab9456 

Simiele, E., Kapsch, R. P., Ankerhold, U., Culberson, W., & Dewerd, L. (2020). Technical note: Characterization of spectral changes with measurement geometry and magnetic field strength in light guides used for scintillation dosimetry. Physics in Medicine and Biology, 65(11). https://doi.org/10.1088/1361-6560/ab8afa 

Culberson, W. S., Davis, S. D., Kim, G. G.-Y., Lowenstein, J. R., Ouhib, Z., Popovic, M., Waldron, T. J., Safigholi, H., Simiele, S. J., & Rivard, M. J. (2020). Dose-rate considerations for the INTRABEAM electronic brachytherapy system: Report from the American association of physicists in medicine task group no. 292. Medical Physics, 47(8), e913–e919. https://doi.org/10.1002/mp.14163 

Smith, B. R., Hyer, D. E., & Culberson, W. S. (2020). An investigation into the robustness of dynamically collimated proton therapy treatments. Medical Physics, 47(8), 3545–3553. https://doi.org/10.1002/mp.14208 

Smith, B. R., Pankuch, M., Hyer, D. E., & Culberson, W. S. (2020). Experimental and Monte Carlo characterization of a dynamic collimation system prototype for pencil beam scanning proton therapy. Medical Physics, 47(10), 5343–5356. https://doi.org/10.1002/mp.14453 

Ferris, W. S., & Culberson, W. S. (2020). Technical Note: Patient dose from kilovoltage radiographs during motion-synchronized treatments on Radixact®. Medical Physics, 47(11), 5772–5778. https://doi.org/10.1002/mp.14461 

Smith, B. R., DeWerd, L. A., & Culberson, W. S. (2020). On the stability of well-type ionization chamber source strength calibration coefficients. Medical Physics, 47(9), 4491–4501. https://doi.org/10.1002/mp.14247

Becker, S. J., Culberson, W. S., Poirier, Y., Mutaf, Y., Niu, Y., Nichols, E. M., & Yi, B. (2020). Dosimetry evaluation of the GammaPod stereotactic radiosurgery device based on established AAPM and IAEA protocols. Medical Physics, 47(8), 3614–3620. https://doi.org/10.1002/mp.14197 

Ferris, W. S., Kissick, M. W., Bayouth, J. E., Culberson, W. S., & Smilowitz, J. B. (2020). Evaluation of radixact motion synchrony for 3D respiratory motion: Modeling accuracy and dosimetric fidelity. Journal of Applied Clinical Medical Physics, 21(9), 96–106. https://doi.org/10.1002/acm2.12978 

Desai, V. K., Labby, Z. E., DeWerd, L. A., & Culberson, W. S. (2020). On the implementation of the plan-class specific reference field using multidimensional clustering of plan features and alternative strategies for improved dosimetry in modulated clinical linear accelerator treatments. Medical Physics, 47(8), 3621–3635. https://doi.org/10.1002/mp.14207

Smith, B. R., Hyer, D. E., Flynn, R. T., & Culberson, W. S. (2019). Technical Note: Optimization of spot and trimmer position during dynamically collimated proton therapy. Medical Physics, 46(4), 1922–1930. https://doi.org/10.1002/mp.13441

Desai, V. K., Labby, Z. E., Hyun, M. A., DeWerd, L. A., & Culberson, W. S. (2019). VMAT and IMRT plan-specific correction factors for linac-based ionization chamber dosimetry. Medical Physics, 46(2), 913–924. https://doi.org/10.1002/mp.13293

Matrosic, C. K., Hull, J., Palmer, B., Culberson, W., & Bednarz, B. (2019). Deformable abdominal phantom for the validation of real-time image guidance and deformable dose accumulation. Journal of Applied Clinical Medical Physics, 20(8), 122–133. https://doi.org/10.1002/acm2.12687

Hansen, J. B., Culberson, W. S., & DeWerd, L. A. (2019). A convex windowless extrapolation chamber to measure surface dose rate from 106Ru/106Rh episcleral plaques. Medical Physics, 46(5), 2430–2443. https://doi.org/10.1002/mp.13488

Hansen, J. B., Culberson, W. S., & DeWerd, L. A. (2019). Surface dose rate from a flat 106Ru/106Rh episcleral plaque measured with a planar windowless extrapolation chamber and un-laminated EBT3 film. Radiation Measurements, 121(None), 18–25. https://doi.org/10.1016/j.radmeas.2018.12.002

Smith, B. R., Pankuch, M., Hammer, C. G., DeWerd, L. A., & Culberson, W. S. (2019). LET response variability of GafchromicTM EBT3 film from a 60Co calibration in clinical proton beam qualities. Medical Physics, 46(6), 2716–2728. https://doi.org/10.1002/mp.13442

Radtke, J., Deluca, P., Anderson, D., Wilson, P., Bartol, L., Maile, A., Agasie, R., Trumbull, T., Grant, E., Brooks, P., Anderson, M., & Culberson, W. (2019). Ionization Chambers to Determine Neutron and Gamma-Ray Kerma in a Research Reactor. IEEE Transactions on Nuclear Science, 66(10), 2160–2169. https://doi.org/10.1109/TNS.2019.2937750

Ferris, W. S., Culberson, W. S., Anderson, D. R., & Labby, Z. E. (2019). Calculating dose from a 2.5 MV imaging beam using a commercial treatment planning system. Journal of Applied Clinical Medical Physics, 20(12), 25–35. https://doi.org/10.1002/acm2.12756

Smith, B. R., Hyer, D. E., Flynn, R. T., Hill, P. M., & Culberson, W. S. (2019). Trimmer sequencing time minimization during dynamically collimated proton therapy using a colony of cooperating agents. Physics in Medicine and Biology, 64(20). https://doi.org/10.1088/1361-6560/ab416d

Smith, B. R., Hyer, D. E., Hill, P. M., & Culberson, W. S. (2019). Secondary Neutron Dose From a Dynamic Collimation System During Intracranial Pencil Beam Scanning Proton Therapy: A Monte Carlo Investigation. International Journal of Radiation Oncology Biology Physics, 103(1), 241–250. https://doi.org/10.1016/j.ijrobp.2018.08.012

Bruckbauer, S. T., Trimarco, J. D., Martin, J., Bushnell, B., Senn, K. A., Schackwitz, W., Lipzen, A., Blow, M., Wood, E. A., Culberson, W. S., Pennacchio, C., & Cox, M. M. (2019). Experimental evolution of extreme resistance to ionizing radiation in Escherichia coli after 50 cycles of selection. Journal of Bacteriology, 201(8). https://doi.org/10.1128/JB.00784-18

Simiele, E., & Dewerd, L. (2018). On the accuracy and efficiency of condensed history transport in magnetic fields in GEANT4. Physics in Medicine and Biology, 63(23). https://doi.org/10.1088/1361-6560/aaedc9

Simiele, E. A., & DeWerd, L. A. (2018). Characterization of spectral and intensity changes with measurement geometry in various light guides used in scintillation dosimetry. Medical Physics, 45(7), 3417–3428. https://doi.org/10.1002/mp.12992

Trichter, S., Soares, C. G., Zaider, M., Dewyngaert, J. K., Dewerd, L. A., & Kleiman, N. J. (2018). 15 years of 106Ru eye plaque dosimetry at Memorial Sloan-Kettering Cancer Center and Weill Cornell Medical Center using radiochromic film in a Solid Water phantom. Biomedical Physics and Engineering Express, 4(4). https://doi.org/10.1088/2057-1976/aab674

Lawless, M. J., Dimaso, L., Palmer, B., Micka, J., Culberson, W. S., & DeWerd, L. A. (2018). Monte Carlo and 60Co-based kilovoltage x-ray dosimetry methods. Medical Physics, 45(12), 5564–5576. https://doi.org/10.1002/mp.13213

Simiele, E., Kapsch, R. P., Ankerhold, U., Culberson, W., & Dewerd, L. (2018). Spectral characterization of plastic scintillation detector response as a function of magnetic field strength. Physics in Medicine and Biology, 63(8). https://doi.org/10.1088/1361-6560/aab56c

Fagerstrom, J. M., DeWerd, L. A., Palmer, B., & Culberson, W. S. (2018). Prototype modulated orthovoltage stereotactic radiosurgery cones. Radiation Measurements, 119(None), 33–41. https://doi.org/10.1016/j.radmeas.2018.09.002

Hammer, C. G., Rosen, B. S., Fagerstrom, J. M., Culberson, W. S., & DeWerd, L. A. (2018). Experimental investigation of GafChromic® EBT3 intrinsic energy dependence with kilovoltage x rays, 137Cs, and 60Co. Medical Physics, 45(1), 448–459. https://doi.org/10.1002/mp.12682

Shepard, A. J., Matrosic, C. K., Radtke, J. L., Jupitz, S. A., Culberson, W. S., & Bednarz, B. P. (2018). Technical Note: Characterization of clinical linear accelerator triggering latency for motion management system development. Medical Physics, 45(11), 4816–4821. https://doi.org/10.1002/mp.13191

Hansen, J. B., Culberson, W. S., & DeWerd, L. A. (2018). Windowless extrapolation chamber measurement of surface dose rate from a 90Sr/90Y ophthalmic applicator. Radiation Measurements, 108(None), 34–40. https://doi.org/10.1016/j.radmeas.2017.11.003

Aima, M., DeWerd, L. A., Mitch, M. G., Hammer, C. G., & Culberson, W. S. (2018). Dosimetric characterization of a new directional low-dose rate brachytherapy source. Medical Physics, 45(8), 3848–3860. https://doi.org/10.1002/mp.12994

Taneja, S., Bartol, L. J., Culberson, W. S., & DeWerd, L. A. (2018). Characterization of the energy spectrum of a 137Cs irradiator through measurements using a pulse-mode detector. Radiation Measurements, 114(None), 1–7. https://doi.org/10.1016/j.radmeas.2018.04.004

Rivard, M. J., Ballester, F., Butler, W. M., Dewerd, L. A., Ibbott, G. S., Meigooni, A. S., Melhus, C. S., Mitch, M. G., Nath, R., & Papagiannis, P. (2017). Supplement 2 for the 2004 update of the AAPM Task Group No. 43 Report: Joint recommendations by the AAPM and GEC-ESTRO: Joint. Medical Physics, 44(9), e297–e338. https://doi.org/10.1002/mp.12430

Miller, J. R., Hooten, B. D., Micka, J. A., & Dewerd, L. A. (2017). Reply to: Comment on: polarity effects and apparent ion recombination in microionization chambers [Med. Phys. 43(5) 2141-2152 (2016)]. Medical Physics, 44(3), 1206–1207. https://doi.org/10.1002/MP.12084

Hyun, M. A., Miller, J. R., Micka, J. A., & Dewerd, L. A. (2017). Ion recombination and polarity corrections for small-volume ionization chambers in high-dose-rate, flattening-filter-free pulsed photon beams. Medical Physics, 44(2), 618–627. https://doi.org/10.1002/mp.12053

Simiele, E. A., Smith, B. R., & Culberson, W. S. (2017). Experimental determination of the effective point of measurement in electron beams using a commercial scintillation detector. Radiation Measurements, 107(None), 1–6. https://doi.org/10.1016/j.radmeas.2017.09.009

Ellefson, S. T., Culberson, W. S., Bednarz, B. P., DeWerd, L. A., & Bayouth, J. E. (2017). An analysis of the ArcCHECK-MR diode array’s performance for ViewRay quality assurance. Journal of Applied Clinical Medical Physics, 18(4), 161–171. https://doi.org/10.1002/acm2.12107

Smith, B. R., Micka, J. A., Aima, M., DeWerd, L. A., & Culberson, W. S. (2017). Air-kerma strength determination of an HDR 192Ir source including a geometric sensitivity study of the seven-distance method: Medical Physics, 44(1), 311–320. https://doi.org/10.1002/mp.12017

Petroccia, H., Mendenhall, N., Liu, C., Hammer, C., Culberson, W., Thar, T., Mitchell, T., Li, Z., & Bolch, W. (2017). A hybrid phantom Monte Carlo-based method for historical reconstruction of organ doses in patients treated with cobalt-60 for Hodgkin’s lymphoma. Physics in Medicine and Biology, 62(15), 6261–6289. https://doi.org/10.1088/1361-6560/aa7c2f

Muir, B., Culberson, W., Davis, S., Kim, G. Y., Huang, Y., Lee, S. W., Lowenstein, J., Sarfehnia, A., Siebers, J., & Tolani, N. (2017). Insight gained from responses to surveys on reference dosimetry practices. Journal of Applied Clinical Medical Physics, 18(3), 182–190. https://doi.org/10.1002/acm2.12081

Fagerstrom, J. M., Bender, E. T., Lawless, M. J., & Culberson, W. S. (2017). Design of a modulated orthovoltage stereotactic radiosurgery system: Medical Physics, 44(7), 3776–3787. https://doi.org/10.1002/mp.12336

Flores-Martinez, E., Malin, M. J., & DeWerd, L. A. (2016). Development and characterization of an interferometer for calorimeter-based absorbed dose to water measurements in a medical linear accelerator. Review of Scientific Instruments, 87(11). https://doi.org/10.1063/1.4967490

Miller, J. R., Hooten, B. D., Micka, J. A., & DeWerd, L. A. (2016). Polarity effects and apparent ion recombination in microionization chambers. Medical Physics, 43(5), 2141–2152. https://doi.org/10.1118/1.4944872

Nath, R., Rivard, M. J., DeWerd, L. A., Dezarn, W. A., Heaton, H. T., Ibbott, G. S., Meigooni, A. S., Ouhib, Z., Rusch, T. W., Siebert, F. A., & Venselaar, J. L. M. (2016). Guidelines by the AAPM and GEC-ESTRO on the use of innovative brachytherapy devices and applications: Report of Task Group 167. Medical Physics, 43(6), 3178–3205. https://doi.org/10.1118/1.4951734

Malin, M. J., Palmer, B. R., & DeWerd, L. A. (2016). Absolute measurement of LDR brachytherapy source emitted power: Instrument design and initial measurements. Medical Physics, 43(2), 796–806. https://doi.org/10.1118/1.4939666

Seed, T. M., Xiao, S., Manley, N., Nikolich-Zugich, J., Pugh, J., Brink, M. Van Den, Hirabayashi, Y., Yasutomo, K., Iwama, A., Koyasu, S., Shterev, I., Sempowski, G., Macchiarini, F., Nakachi, K., Kunugi, K. C., Hammer, C. G., & Dewerd, L. A. (2016). An interlaboratory comparison of dosimetry for a multi-institutional radiobiological research project: Observations, problems, solutions and lessons learned. International Journal of Radiation Biology, 92(2), 59–70. https://doi.org/10.3109/09553002.2015.1106024

Taneja, S., Bartol, L. J., Culberson, W. S., & DeWerd, L. A. (2016). Air-kerma modulation effects on the energy spectrum of a 137CS irradiator using Monte-Carlo techniques. Radiation Measurements, 95(None), 9–15. https://doi.org/10.1016/j.radmeas.2016.10.003

Matrosic, C., Culberson, W., Rosen, B., Madsen, E., Frank, G., & Bednarz, B. (2016). Initial characterization of a gel patch dosimeter for in vivo dosimetry. Physics in Medicine and Biology, 61(10), N240–N248. https://doi.org/10.1088/0031-9155/61/10/N240

Shen, H., Culberson, W. S., & Ross, C. K. (2016). Technical Note: An investigation of polarity effects for wide-angle free-air chambers. Medical Physics, 43(7), 4106–4112. https://doi.org/10.1118/1.4951727

Pedersen, K. H., Kunugi, K. A., Hammer, C. G., Culberson, W. S., & DeWerd, L. A. (2016). Radiation Biology Irradiator Dose Verification Survey. Radiation Research, 185(2), 163–168. https://doi.org/10.1667/RR14155.1

Boivin, J., Beddar, S., Bonde, C., Schmidt, D., Culberson, W., Guillemette, M., & Beaulieu, L. (2016). A systematic characterization of the low-energy photon response of plastic scintillation detectors. Physics in Medicine and Biology, 61(15), 5569–5586. https://doi.org/10.1088/0031-9155/61/15/5569

Fagerstrom, J. M., Bender, E. T., & Culberson, W. S. (2016). Technical Note: Dose gradients and prescription isodose in orthovoltage stereotactic radiosurgery. Medical Physics, 43(5), 2072–2079. https://doi.org/10.1118/1.4944782

Rosen, B. S., Soares, C. G., Hammer, C. G., Kunugi, K. A., & Dewerd, L. A. (2015). A prototype, glassless densitometer traceable to primary optical standards for quantitative radiochromic film dosimetry. Medical Physics, 42(7), 4055–4068. https://doi.org/10.1118/1.4922134

Malin, M. J., Bartol, L. J., & DeWerd, L. A. (2015). Impact of the differential fluence distribution of brachytherapy sources on the spectroscopic dose-rate constant. Medical Physics, 42(5), 2379–2388. https://doi.org/10.1118/1.4918325

Moura, E. S., Micka, J. A., Hammer, C. G., Culberson, W. S., Dewerd, L. A., Rostelato, M. E. C. M., & Zeituni, C. A. (2015). Development of a phantom to validate high-dose-rate brachytherapy treatment planning systems with heterogeneous algorithms. Medical Physics, 42(4), 1566–1574. https://doi.org/10.1118/1.4914390

DeWerd, L. A., Culberson, W. S., Micka, J. A., & Simiele, S. J. (2015). A modified dose calculation formalism for electronic brachytherapy sources. Brachytherapy, 14(3), 405–408. https://doi.org/10.1016/j.brachy.2015.01.003

Aima, M., Reed, J. L., Dewerd, L. A., & Culberson, W. S. (2015). Air-kerma strength determination of a new directional 103Pd source. Medical Physics, 42(12), 7144–7152. https://doi.org/10.1118/1.4935409

McCaw, T. J., Micka, J. A., & Dewerd, L. A. (2014). Development and characterization of a three-dimensional radiochromic film stack dosimeter for megavoltage photon beam dosimetry. Medical Physics, 41(5). https://doi.org/10.1118/1.4871781

McEwen, M., Dewerd, L., Ibbott, G., Followill, D., Rogers, D. W. O., Seltzer, S., & Seuntjens, J. (2014). Addendum to the AAPM’s TG-51 protocol for clinical reference dosimetry of high-energy photon beams. Medical Physics, 41(4). https://doi.org/10.1118/1.4866223

Fulkerson, R. K., Micka, J. A., & Dewerd, L. A. (2014). Dosimetric characterization and output verification for conical brachytherapy surface applicators. Part I. Electronic brachytherapy source. Medical Physics, 41(2). https://doi.org/10.1118/1.4862505

Fulkerson, R. K., Micka, J. A., & Dewerd, L. A. (2014). Dosimetric characterization and output verification for conical brachytherapy surface applicators. Part II. High dose rate 192Ir sources. Medical Physics, 41(2). https://doi.org/10.1118/1.4862506

Rivard, M. J., Reed, J. L., & Dewerd, L. A. (2014). 103Pd strings: Monte Carlo assessment of a new approach to brachytherapy source design. Medical Physics, 41(1). https://doi.org/10.1118/1.4856015

Reed, J. L., Rasmussen, B. E., Davis, S. D., Micka, J. A., Culberson, W. S., & Dewerd, L. A. (2014). Determination of the intrinsic energy dependence of LiF:Mg,Ti thermoluminescent dosimeters for 125I and 103Pd brachytherapy sources relative to 60Co. Medical Physics, 41(12). https://doi.org/10.1118/1.4901300

Reed, J. L., Rivard, M. J., Micka, J. A., Culberson, W. S., & DeWerd, L. A. (2014). Experimental and Monte Carlo dosimetric characterization of a 1cm 103Pd brachytherapy source. Brachytherapy, 13(6), 657–667. https://doi.org/10.1016/j.brachy.2014.04.001

DeWerd, L. A., Liang, Q., Reed, J. L., & Culberson, W. S. (2014). The use of TLDs for brachytherapy dosimetry. Radiation Measurements, 71(None), 276–281. https://doi.org/10.1016/j.radmeas.2014.05.005

Riley, A. D., Pike, T. L., Micka, J. A., Fulkerson, R. K., & Dewerd, L. A. (2013). Determination of air-kerma strength for the 192Ir GammaMed plus iX pulsed-dose-rate brachytherapy source. Medical Physics, 40(7). https://doi.org/10.1118/1.4812420

Snow, J. R., Micka, J. A., & Dewerd, L. A. (2013). Microionization chamber air-kerma calibration coefficients as a function of photon energy for x-ray spectra in the range of 20-250 kVp relative to 60Co. Medical Physics, 40(4). https://doi.org/10.1118/1.4794491

Lawless, M. J., Junell, S., Hammer, C., & Dewerd, L. A. (2013). Response of TLD-100 in mixed fields of photons and electrons. Medical Physics, 40(1). https://doi.org/10.1118/1.4773030

Becker, S. J., Culberson, W., & Flynn, R. T. (2013). Collision indicator charts for gantry-couch position combinations for Siemens ONCOR and Elekta Infinity linacs. Journal of Applied Clinical Medical Physics, 14(5), 278–283. https://doi.org/10.1120/jacmp.v14i5.4355

Dewerd, L. A., Venselaar, J. L. M., Ibbott, G. S., Meigooni, A. S., Stump, K. E., Thomadsen, B. R., & Rivard, M. J. (2012). Overview on the dosimetric uncertainty analysis for photon-emitting brachytherapy sources, in the light of the AAPM Task Group No 138 and GEC-ESTRO report. Metrologia, 49(5), S253–S258. https://doi.org/10.1088/0026-1394/49/5/S253

Bartol, L. J., & Dewerd, L. A. (2012). Technical note: Improved implementation of doppler broadening in MCNP5. Medical Physics, 39(9), 5635–5638. https://doi.org/10.1118/1.4747527

Pavoni, J. F., Pike, T. L., Snow, J., DeWerd, L., & Baffa, O. (2012). Tomotherapy dose distribution verification using MAGIC-f polymer gel dosimetry. Medical Physics, 39(5), 2877–2884. https://doi.org/10.1118/1.4704496

Perez-Calatayud, J., Ballester, F., Das, R. K., Dewerd, L. A., Ibbott, G. S., Meigooni, A. S., Ouhib, Z., Rivard, M. J., Sloboda, R. S., & Williamson, J. F. (2012). Dose calculation for photon-emitting brachytherapy sources with average energy higher than 50 keV: Report of the AAPM and ESTRO. Medical Physics, 39(5), 2904–2929. https://doi.org/10.1118/1.3703892

Paxton, A. B., Davis, S. D., & Dewerd, L. A. (2012). Determining the effects of microsphere and surrounding material composition on 90Y dose kernels using egsnrc and mcnp5. Medical Physics, 39(3), 1424–1434. https://doi.org/10.1118/1.3685577

Yegingil, Z., DeWerd, L. A., Davis, S. D., Hammer, C., & Kunugi, K. (2012). Photon beam audits for radiation therapy clinics: A pilot mailed dosemeter study in Turkey. Radiation Protection Dosimetry, 148(2), 249–257. https://doi.org/10.1093/rpd/ncr017

Liang, Q., Davis, S. D., Horowitz, Y. S., & Dewerd, L. A. (2011). Investigation of the relative TL response for low-energy X-rays relative to 60Co for TLD-100. Radiation Measurements, 46(12), 1453–1456. https://doi.org/10.1016/j.radmeas.2011.07.024

Rasmussen, B. E., Davis, S. D., Schmidt, C. R., Micka, J. A., & Dewerd, L. A. (2011). Comparison of air-kerma strength determinations for HDR 192Ir sources. Medical Physics, 38(12), 6721–6729. https://doi.org/10.1118/1.3656683

McCaw, T. J., Micka, J. A., & Dewerd, L. A. (2011). Characterizing the marker-dye correction for Gafchromic EBT2 film: A comparison of three analysis methods. Medical Physics, 38(10), 5771–5777. https://doi.org/10.1118/1.3639997

Dezarn, W. A., Cessna, J. T., Dewerd, L. A., Feng, W., Gates, V. L., Halama, J., Kennedy, A. S., Nag, S., Sarfaraz, M., Sehgal, V., Selwyn, R., Stabin, M. G., Thomadsen, B. R., Williams, L. E., & Salem, R. (2011). Recommendations of the American Association of Physicists in Medicine on dosimetry, imaging, and quality assurance procedures for 90Y microsphere brachytherapy in the treatment of hepatic malignancies. Medical Physics, 38(8), 4824–4845. https://doi.org/10.1118/1.3608909

DeWerd, L. A., Ibbott, G. S., Meigooni, A. S., Mitch, M. G., Rivard, M. J., Stump, K. E., Thomadsen, B. R., & Venselaar, J. L. M. (2011). A dosimetric uncertainty analysis for photon-emitting brachytherapy sources: Report of AAPM Task Group No. 138 and GEC-ESTRO. Medical Physics, 38(2), 782–801. https://doi.org/10.1118/1.3533720

Raffi, J. A., Davis, S. D., Hammer, C. G., Micka, J. A., Kunugi, K. A., Musgrove, J. E., Winston, J. W., Ricci-Ott, T. J., & DeWerd, L. A. (2010). Determination of exit skin dose for i 192 r intracavitary accelerated partial breast irradiation with thermoluminescent dosimeters. Medical Physics, 37(6), 2693–2702. https://doi.org/10.1118/1.3429089

Rivard, M. J., Butler, W. M., Dewerd, L. A., Ibbott, G. S., Meigooni, A. S., Melhus, C. S., Mitch, M. G., & Nath, R. (2010). Erratum: Supplement to the 2004 update of the AAPM Task Group No. 43 Report (Medical Physics (2007) 34 (2187-2205)). Medical Physics, 37(5), 2396-None. https://doi.org/10.1118/1.3388848

Kennedy, R. M., Davis, S. D., Micka, J. A., & Dewerd, L. A. (2010). Experimental and Monte Carlo determination of the TG-43 dosimetric parameters for the model 9011 THINSeed brachytherapy source. Medical Physics, 37(4), 1681–1688. https://doi.org/10.1118/1.3360899

Holmes, S. M., Micka, J. A., & Dewerd, L. A. (2009). Investigation of a 90Sr/90Y source for intra-ocular treatment of wet age-related macular degeneration. Medical Physics, 36(10), 4370–4378. https://doi.org/10.1118/1.3213515

Holmes, S. M., Micka, J. A., & Dewerd, L. A. (2009). Ophthalmic applicators: An overview of calibrations following the change to SI units. Medical Physics, 36(5), 1473–1477. https://doi.org/10.1118/1.3098943

Meltsner, S. G., & DeWerd, L. A. (2009). Air kerma based dosimetry calibration for the Leksell Gamma Knife. Medical Physics, 36(2), 339–350. https://doi.org/10.1118/1.3049587

Usher-Moga, J., Beach, S. M., & Dewerd, L. A. (2009). Spectroscopic output of 125I and 103Pd low dose rate brachytherapy sources. Medical Physics, 36(1), 270–278. https://doi.org/10.1118/1.3039789

Fagerstrom, J. M., Micka, J. A., & DeWerd, L. A. (2008). Response of an implantable MOSFET dosimeter to 192Ir HDR radiation. Medical Physics, 35(12), 5729–5737. https://doi.org/10.1118/1.3013574

Butler, W. M., Bice, W. S., Dewerd, L. A., Hevezi, J. M., Huq, M. S., Ibbott, G. S., Palta, J. R., Rivard, M. J., Seuntjens, J. P., & Thomadsen, B. R. (2008). Third-party brachytherapy source calibrations and physicist responsibilities: Report of the AAPM Low Energy Brachytherapy Source Calibration Working Group. Medical Physics, 35(9), 3860–3865. https://doi.org/10.1118/1.2959723

Nunn, A. A., Davis, S. D., Micka, J. A., & DeWerd, L. A. (2008). LiF:Mg,Ti TLD response as a function of photon energy for moderately filtered x-ray spectra in the range of 20-250 kVp relative to 60Co. Medical Physics, 35(5), 1859–1869. https://doi.org/10.1118/1.2898137

Selwyn, R., Micka, J., DeWerd, L., Nickles, R., & Thomadsen, B. (2008). Technical note: The calibration of 90Y -labeled SIR-Spheres® using a nondestructive spectroscopic assay. Medical Physics, 35(4), 1278–1279. https://doi.org/10.1118/1.2889621

VanDamme, J. J., Culberson, W. S., Dewerd, L. A., & Micka, J. A. (2008). Air-kerma strength determination of a 169Yb high dose rate brachytherapy source. Medical Physics, 35(9), 3935–3942. https://doi.org/10.1118/1.2964094

Paxton, A. B., Culberson, W. S., DeWerd, L. A., & Micka, J. A. (2008). Primary calibration of coiled 103Pd brachytherapy sources. Medical Physics, 35(1), 32–38. https://doi.org/10.1118/1.2815628

Selbach, H. J., Kramer, H. M., & Culberson, W. S. (2008). Realization of reference air-kerma rate for low-energy photon sources. Metrologia, 45(4), 422–428. https://doi.org/10.1088/0026-1394/45/4/007

Beach, S. M., & DeWerd, L. A. (2007). Deconvolution and reconstruction techniques of closely spaced low-energy spectra from high-purity germanium spectrometry. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 572(2), 794–803. https://doi.org/10.1016/j.nima.2006.12.006

Selwyn, R. G., Nickles, R. J., Thomadsen, B. R., DeWerd, L. A., & Micka, J. A. (2007). A new internal pair production branching ratio of 90Y: The development of a non-destructive assay for 90Y and 90Sr. Applied Radiation and Isotopes, 65(3), 318–327. https://doi.org/10.1016/j.apradiso.2006.08.009

Rivard, M. J., Butler, W. M., DeWerd, L. A., Huq, M. S., Ibbott, G. S., Meigooni, A. S., Melhus, C. S., Mitch, M. G., Nath, R., & Williamson, J. F. (2007). Supplement to the 2004 update of the AAPM Task Group No. 43 Report. Medical Physics, 34(6), 2187–2205. https://doi.org/10.1118/1.2736790

Bohm, T. D., Micka, J. A., & DeWerd, L. A. (2007). Monte Carlo aided design of an improved well-type ionization chamber for low energy brachytherapy sources. Medical Physics, 34(4), 1274–1285. https://doi.org/10.1118/1.2712416

Rodriguez, M., Griffin, S., DeWerd, L., & Jeraj, R. (2007). Characterization of the ADII-33 diamond detector. Medical Physics, 34(1), 215–220. https://doi.org/10.1118/1.2400832

Li, Z., Das, R. K., DeWerd, L. A., Ibbott, G. S., Meigooni, A. S., Ṕrez-Calatayud, J., Rivard, M. J., Sloboda, R. S., & Williamson, J. F. (2007). Dosimetric prerequisites for routine clinical use of photon emitting brachytherapy sources with average energy higher than 50 kev. Medical Physics, 34(1), 37–40. https://doi.org/10.1118/1.2388155

Meigooni, A. S., DeWerd, L. A., Rivard, M. J., Butler, W. M., Melhus, C. S., Nath, R., Ibbott, G. S., & Seuntjens, J. P. (2007). Response to “The need for a dose calibration protocol for brachytherapy sources” [Med. Phys. 34, 367-368 (2007)] [3]. Medical Physics, 34(1), 369–370. https://doi.org/10.1118/1.2405327

Holmes, S. M., DeWerd, L. A., & Micka, J. A. (2007). Erratum: Experimental determination of the radial dose function of 90Sr/90Y IVBT sources (Medical Physics (2006) 33 (3225-3233)). Medical Physics, 34(9), 3225–3233. https://doi.org/10.1118/1.2409746

Ng, K. H., Jamal, N., & DeWerd, L. (2006). Global quality control perspective for the physical and technical aspects of screen-film mammography – Image quality and radiation dose. Radiation Protection Dosimetry, 121(4), 445–451. https://doi.org/10.1093/rpd/ncl051

DeWerd, L. A., Micka, J. A., Holmes, S. M., & Bohm, T. D. (2006). Calibration of multiple LDR brachytherapy sources. Medical Physics, 33(10), 3804–3813. https://doi.org/10.1118/1.2348765

Rivard, M. J., Davis, S. D., DeWerd, L. A., Rusch, T. W., & Axelrod, S. (2006). Calculated and measured brachytherapy dosimetry parameters in water for the Xoft Axxent X-Ray Source: An electronic brachytherapy source. Medical Physics, 33(11), 4020–4032. https://doi.org/10.1118/1.2357021

Allisy-Roberts, P., Ambrosi, P., Bartlett, D. T., Coursey, B. M., DeWerd, L. A., Fantuzzi, E., McDonald, J. C., Jr., P. M. D., Paretzke, H. G., Izewska, J., & Burns, D. (2006). Measurement quality assurance for ionizing radiation dosimetry. Journal of the ICRU, 6(2), i–50. https://doi.org/10.1093/jicru_ndl021

Minniti, R., Chen-Mayer, H., Seltzer, S. M., Huq, M. S., Bryson, L., Slowey, T., Micka, J. A., DeWerd, L. A., Wells, N., Hanson, W. F., & Ibbott, G. S. (2006). The US radiation dosimetry standards for 60Co therapy level beams, and the transfer to the AAPM accredited dosimetry calibration laboratories. Medical Physics, 33(4), 1074–1077. https://doi.org/10.1118/1.2184442

Butler, W. M., Huq, M. S., Li, Z., Thomadsen, B. R., DeWerd, L. A., Ibbott, G. S., Mitch, M. G., Nath, R., Rivard, M. J., Williamson, J. F., Yue, N. J., & Zaider, M. (2006). Third party brachytherapy seed calibrations and physicist responsibilities. Medical Physics, 33(1), 247–248. https://doi.org/10.1118/1.2148917

Culberson, W. S., Dewerd, L. A., Anderson, D. R., & Micka, J. A. (2006). Large-volume ionization chamber with variable apertures for air-kerma measurements of low-energy radiation sources. Review of Scientific Instruments, 77(1), 1–9. https://doi.org/10.1063/1.2148997

Stump, K. E., Dewerd, L. A., Rudman, D. A., & Schima, S. A. (2005). Active radiometric calorimeter for absolute calibration of radioactive sources. Review of Scientific Instruments, 76(3). https://doi.org/10.1063/1.1867032

Douysset, G., Gouriou, J., Delaunay, F., DeWerd, L., Stump, K., & Micka, J. (2005). Comparison of dosimetric standards of USA and France for HDR brachytherapy. Physics in Medicine and Biology, 50(9), 1961–1978. https://doi.org/10.1088/0031-9155/50/9/003

Meigooni, A. S., Rachabatthula, V., Awan, S. B., Koona, R. A., Rivard, M. J., Butler, W. M., DeWerd, L. A., Huq, M. S., Ibbott, G. S., Melhus, C. S., Mitch, M. G., Nath, R., & Williamson, J. J. (2005). Comment on “Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations” [Med. Phys. 31, 633-674 (2004)]. Medical Physics, 32(6), 1820–1824. https://doi.org/10.1118/1.1905823

Williamson, J. F., Butler, W., DeWerd, L. A., Huq, M. S., Ibbott, G. S., Li, Z., Mitch, M. G., Nath, R., Rivard, M. J., & Todor, D. (2005). Recommendations of the American Association of Physicists in Medicine regarding the impact of implementing the 2004 Task Group 43 report on specification for 103Pd and 125I interstitial brachytherapy. Medical Physics, 32(5), 1424–1439. https://doi.org/10.1118/1.1884925

Bohm, T. D., Griffin, S. L., DeLuca, P. M., & DeWerd, L. A. (2005). The effect of ambient pressure on well chamber response: Monte Carlo calculated results for the HDR 1000 Plus. Medical Physics, 32(4), 1103–1114. https://doi.org/10.1118/1.1884905

Hirata, E. Y., Cunningham, C., Micka, J. A., Keller, H., Kissick, M. W., & Dewerd, L. A. (2005). Low dose fraction behavior of high sensitivity radiochromic film. Medical Physics, 32(4), 1054–1060. https://doi.org/10.1118/1.1883565

Griffin, S. L., DeWerd, L. A., Micka, J. A., & Bohm, T. D. (2005). The effect of ambient pressure on well chamber response: Experimental results with empirical correction factors. Medical Physics, 32(3), 700–709. https://doi.org/10.1118/1.1861157

Culberson, W. S., Dewerd, L. A., Thomadsen, B. R., Micka, J. A., & Bohm, T. D. (2005). Calibration of the photon component of 198Au stents. Brachytherapy, 4(1), 51–58. https://doi.org/10.1016/j.brachy.2004.11.004

Rassiah, P., Ng, K. H., DeWerd, L. A., & Kunugi, K. (2004). A thermoluminescent dosimetry postal dose inter-comparison of radiation therapy centres in Malaysia. Australasian Physical and Engineering Sciences in Medicine, 27(1), 25–29. https://doi.org/10.1007/BF03178885

DeWerd, L. A., Huq, M. S., Das, I. J., Ibbott, G. S., Hanson, W. F., Slowey, T. W., Williamson, J. F., & Coursey, B. M. (2004). Procedures for establishing and maintaining consistent air-kerma strength standards for low-energy, photon-emitting brachytherapy sources: Recommendations of the Calibration Laboratory Accreditation Subcommittee of the American Association of Physicists in Medicine. Medical Physics, 31(3), 675–681. https://doi.org/10.1118/1.1645681

Rivard, M. J., Coursey, B. M., DeWerd, L. A., Hanson, W. F., Huq, M. S., Ibbott, G. S., Mitch, M. G., Nath, R., Williamson, J. F., Butler, W. M., DeWerd, L. A., Huq, M. S., Ibbott, G. S., Li, Z., Mitch, M. G., Nath, R., & Williamson, J. F. (2004). Erratum: Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations (Medical Physics (2004) 31 (633-674)). Medical Physics, 31(12), 633–674. https://doi.org/10.1118/1.1812603

DeWerd, L., & Mackie, R. (2003). Comment on “comparison of ionization chambers of various volumes for IMRT absolute dose verification” [Med. Phys. 30, 119-123 (2003)]. Medical Physics, 30(8), 2264-None. https://doi.org/10.1118/1.1587892

DeWerd, L. A., Micka, J. A., Laird, R. W., Pearson, D. W., O’Brien, M., & Lamperti, P. (2003). Erratum: The effect of spectra on calibration and measurement with mammographic ionization chambers (Medical Physics (2002) 29 (2649-2654)). Medical Physics, 30(3), 483-None. https://doi.org/10.1118/1.1544681

Bohm, T. D., DeLuca, P. M., & DeWerd, L. A. (2003). Brachytherapy dosimetry of 125I and 103Pd sources using an updated cross section library for the MCNP Monte Carlo transport code. Medical Physics, 30(4), 701–711. https://doi.org/10.1118/1.1562942

DeWerd, L. A., Micka, J. A., Laird, R. W., Pearson, D. W., O’Brien, M., & Lamperti, P. (2002). The effect of spectra on calibration and measurement with mammographic ionization chambers. Medical Physics, 29(11), 2649–2654. https://doi.org/10.1118/1.1517612

Andreo, P., Huq, M. S., Westermark, M., Song, H., Tilikidis, A., Dewerd, L., & Shortt, K. (2002). Protocols for the dosimetry of high-energy photon and electron beams: A comparison of the IAEA TRS-398 and previous international Codes of Practice. Physics in Medicine and Biology, 47(17), 3033–3053. https://doi.org/10.1088/0031-9155/47/17/301

Meli, J. A., Rivard, M. J., Coursey, B. M., DeWerd, L. A., Hanson, W. F., Huq, M. S., Ibbott, G., Nath, R., & Williamson, J. F. (2002). Let’s abandon geometry factors other than that of a point source in brachytherapy dosimetry [2] (multiple letters). Medical Physics, 29(8), 1917–1920. https://doi.org/10.1118/1.1496099

Stump, K. E., DeWerd, L. A., Micka, J. A., & Anderson, D. R. (2002). Calibration of new high dose rate 192Ir sources. Medical Physics, 29(7), 1483–1488. https://doi.org/10.1118/1.1487860

Ma, C. M., Coffey, C. W., DeWerd, L. A., Liu, C., Nath, R., Seltzer, S. M., & Seuntjens, J. P. (2001). AAPM protocol for 40-300 kV x-ray beam dosimetry in radiotherapy and radiobiology. Medical Physics, 28(6), 868–893. https://doi.org/10.1118/1.1374247

Pérez-Calatayud, J., Ballester, F., Limami, Y., Dewerd, L. A., & Nelson, K. (2001). Assessment of the linear reference air kerma rate of 192Ir wires. Physics in Medicine and Biology, 46(8), 2201–2207. https://doi.org/10.1088/0031-9155/46/8/311

Buckley, L. A., Thomadsen, B. R., & DeWerd, L. A. (2001). The water-equivalence of phantom materials for 90Sr-90Y beta particles. Medical Physics, 28(6), 1010–1015. https://doi.org/10.1118/1.1376176

Williamson, J. F., Coursey, B. M., DeWerd, L. A., Hanson, W. F., Nath, R., Rivard, M. J., & Ibbott, G. (2000). Recommendations of the American association of physicists in medicine on 103Pd interstitial source calibration and dosimetry: Implications for dose specification and prescription. Medical Physics, 27(4), 634–642. https://doi.org/10.1118/1.598923

Ng, K. H., DeWerd, L. A., & Schmidt, R. C. (2000). Mammographic image quality and exposure in South East Asia. Australasian Physical and Engineering Sciences in Medicine, 23(4), 135–137.

Kron, T., DeWerd, L., Mobit, P., Muniz, J., Pradhan, A., Toivonen, M., & Waligorski, M. (1999). A checklist for reporting of thermoluminescence dosimetry (TLD) measurements [1]. Physics in Medicine and Biology, 44(10), L15–L17. https://doi.org/10.1088/0031-9155/44/10/406

Goetsch, S. J., Murphy, B. D., Schmidt, R., Micka, J., Werd, L. De, Chen, Y., & Shockley, S. (1999). Physics of rotating gamma systems for stereotactic radiosurgery. International Journal of Radiation Oncology Biology Physics, 43(3), 689–696. https://doi.org/10.1016/S0360-3016(98)00428-3

Williamson, J. F., Coursey, B. M., DeWerd, L. A., Hanson, W. F., Nath, R., Rivard, M. J., & Ibbott, G. (1999). On the use of apparent activity (A(app)) for treatment planning of 125I and 103Pd interstitial brachytherapy sources: Recommendations of the American Association of Physicists in Medicine Radiation Therapy Committee Subcommittee on Low-Energy Brachytherapy Source Dosimetry. Medical Physics, 26(12), 2529–2530. https://doi.org/10.1118/1.598789

Dewerd, L. A., & Wagner, L. K. (1999). Characteristics of radiation detectors for diagnostic radiology. Applied Radiation and Isotopes, 50(1), 125–136. https://doi.org/10.1016/S0969-8043(98)00044-X

Williamson, J. F., Coursey, B. M., DeWerd, L. A., Hanson, W. F., Nath, R., & Ibbott, G. (1999). Guidance to users of Nycomed Amersham and North American Scientific, Inc., I-125 interstitial sources: Dosimetry and calibration changes: Recommendations of the American association of physicists in medicine radiation therapy committee ad hoc subcommittee on low-energy seed dosimetry. Medical Physics, 26(4), 570–573. https://doi.org/10.1118/1.598570

Thomadsen, B., DeWerd, L., McNutt, T., DeWerd, S., & Schmidt, D. (1999). Assessment of the strength of individual 192Ir seeds in ribbons. Medical Physics, 26(11), 2471–2475. https://doi.org/10.1118/1.598766

Aus, R. J., DeWerd, L. A., Pearson, D. W., Micka, J. A., & Ng, K. H. (1999). Dependence of scatter on atomic number for x rays from tungsten and molybdenum anodes in the mammographic energy range. Medical Physics, 26(7), 1306–1311. https://doi.org/10.1118/1.598625

Williamson, J., Coursey, B. M., DeWerd, L. A., Hanson, W. F., & Nath, R. (1998). Dosimetric prerequisites for routine clinical use of new low energy photon interstitial brachytherapy sources. Medical Physics, 25(12), 2269–2270. https://doi.org/10.1118/1.598456

Coletti, J. G., Pearson, D. W., DeWerd, L. A., O’Brien, C. M., & Lamperti, P. J. (1997). Comparison of exposure standards in the mammography x-ray region. Medical Physics, 24(8), 1263–1267. https://doi.org/10.1118/1.598148

Ng, K. H., Aus, R. J., DeWerd, L. A., & Vetter, J. R. (1997). Entrance skin exposure and mean glandular dose: Effect of scatter and field gradient at mammography. Radiology, 205(2), 395–398. https://doi.org/10.1148/radiology.205.2.9356619

Gentry, J. R., & DeWerd, L. A. (1996). TLD measurements of in vivo mammographic exposures and the calculated mean glandular dose across the United States. Medical Physics, 23(6), 899–903. https://doi.org/10.1118/1.597824

Coletti, J. G., Pearson, D. W., & DeWerd, L. A. (1995). Mammography exposure standard: Design and characterization of free-air ionization chamber. Review of Scientific Instruments, 66(3), 2574–2577. https://doi.org/10.1063/1.1145590

Podgorsak, M. B., DeWerd, L. A., Paliwal, B. R., Ho, A. K., & Sibata, C. H. (1995). Accuracy of the point source approximation to high dose-rate Ir-192 sources. Medical Dosimetry, 20(3), 177–181. https://doi.org/10.1016/0958-3947(95)00023-P

DeWerd, L. A., Jursinic, P., Kitchen, R., & Thomadsen, B. R. (1995). Quality Assurance Tool for High Dose Rate Brachytherapy. Medical Physics, 22(4), 435–440. https://doi.org/10.1118/1.597469

Podgrosak, M. B., DeWerd, L. A., & Paliwal, B. R. (1995). The air kerma-rate constant of high dose-rate Ir-192 sources. Radiology and Oncology, 29(2), 153–162.

DeWerd, L. A., & Chiu, N. B. (1993). The Determination of Radiation Dose by Mail for Diagnostic Radiological Examinations with Thermoluminescent Dosemeters. Radiation Protection Dosimetry, 47, 509–512.

Fairbanks, E. J., & DeWerd, L. A. (1993). Thermoluminescent characteristics of LiF:Mg, Ti from three manufacturers. Medical Physics, 20(3), 729–731. https://doi.org/10.1118/1.597023

Podaorsak, M. B., DeWerd, L. A., & Paliwal, B. R. (1993). The half-life of high dose rate Ir-192 sources. Medical Physics, 20(4), 1257–1259. https://doi.org/10.1118/1.596976

Podaorsak, M. B., DeWerd, L. A., Thomadsen, B. R., & Paliwal, R. H. R. (1992). Thermal and scatter effects on the radiation sensitivity of well chambers used for high dose rate lr-192 calibrations. Medical Physics, 19(5), 1311–1314. https://doi.org/10.1118/1.596764

Constantinou, C., Harrington, J. C., & DeWerd, L. A. (1992). An electron density calibration phantom for CT-based treatment planning computers. Medical Physics, 19(2), 325–327. https://doi.org/10.1118/1.596862

Goetsch, S. J., Attix, F. H., Dewerd, L. A., & Thomadsen, B. R. (1992). A new re-entrant ionization chamber for the calibration of iridium-192 high dose rate sources. International Journal of Radiation Oncology, Biology, Physics, 24(1), 167–170. https://doi.org/10.1016/0360-3016(92)91037-N

Dewerd, L. (1990). Monitoring mammographic performance. Administrative Radiology : AR, 9(9), 43-44,47.

Dewerd, L. A., Price, J., Cameron, J. R., & Goetsch, S. J. (1990). Evaluation of a commercial diode monitor for mailed quality control of therapy units. International Journal of Radiation Oncology, Biology, Physics, 19(4), 1053–1057. https://doi.org/10.1016/0360-3016(90)90033-G

DeWerd, L. A., & Ranallo, F. (1989). kVp Cassette measurements. Radiologic Technology, 61(2), 145–146.

Mesina, C. F. (1989). Radiation therapy and clinical physics practices in the midwest (1982-1986). Medical Physics, 16(4), 648–652. https://doi.org/10.1118/1.596324

Ranallo, F. N., Goetsch, S. J., Dewerd, L. A., Liss, M. M., Borras, C., White, C., Barton, J., Mian, T., Malik, S., & Wolff, M. (1988). Calibration and use of the Wisconsin kVp Test Cassette. Medical Physics, 15(5), 768–772. https://doi.org/10.1118/1.596281

Constantinou, C., Cameron, J., Dewerd, L., & Liss, M. (1986). Development of radiographic chest phantoms. Medical Physics, 13(6), 917–921. https://doi.org/10.1118/1.595818

Stoebe, T. G., & Dewerd, L. A. (1985). Role of hydroxide impurities in the thermoluminescent behavior of lithium fluoride. Journal of Applied Physics, 57(6), 2217–2220. https://doi.org/10.1063/1.334365

DeWerd, L. A., Cameron, J. R., Da-Ke, W., Papini, T., & Das, I. J. (1983). Characteristics of a New Dosemeter Material: LiF(Mg,Cu,P). Radiation Protection Dosimetry, 6(1–4), 350–352. https://doi.org/10.1093/oxfordjournals.rpd.a082948

Wochos, J. F., Dewerd, L. A., Hilko, R., Meyer, J. A., Stovall, M., Spearman, D., Thomason, C., & Dubuque, G. L. (1982). Mailed thermoluminescent dosimetry reviews in radiation therapy. Medical Physics, 9(6), 920–924. https://doi.org/10.1118/1.595203

Samulski, T., Dubuque, G. L., Cacak, R. K., Courlas, G., Dewerd, L. A., Hilko, R., Humphries, L. J., Jones, D., Masterson, M. E., Miller, D. W., Stovall, M., & Wochos, J. F. (1981). Radiation therapy dosimetry reviews by the centers for radiological physics. International Journal of Radiation Oncology, Biology, Physics, 7(3), 379–383. https://doi.org/10.1016/0360-3016(81)90112-7

Wochos, J. F., Fullerton, G. D., & DeWerd, L. A. (1978). Mailed thermoluminescent dosimeter determination of entrance skin exposure and half-value layer in mammography. American Journal of Roentgenology, 131(4), 617–619. https://doi.org/10.2214/ajr.131.4.617

Dewerd, L. A., & Moran, P. R. (1978). Solid-state electrophotography with Al2O3. Medical Physics, 5(1), 23–26. https://doi.org/10.1118/1.594505

DeWerd, L. A., & Moran, P. R. (1977). SOLID STATE ELECTROPHOTOGRAPHIC IMAGING WITH IONIC DIELECTRIC X-RAY RECEPTORS. J Appl Photogr Eng, 3(3), 163–166.

Siedband, M. P., Jennings, R. J., DeWerd, L. A., Eastgate, R. J., & Ergun, D. L. (1977). DIFFERENTIAL ENERGY ABSORPTION X-RAY CASSETTE. J Appl Photogr Eng, 3(3), 160–162.

DeWerd, L. A. (1976). Handling technique for thermoluminescent dosimeters. Health Physics, 31(6), 525–527.

DeWerd, L. A., White, R. P., Stang, R. G., & Stoebe, T. G. (1976). The relation between deformation and thermoluminescent defect centers in LiF (TLD-100). Journal of Applied Physics, 47(9), 4231–4233. https://doi.org/10.1063/1.323209

DeWerd, L. A., Kim, T. H., & Stoebe, T. G. (1976). Thermoluminescent behavior of crystalline and glassy lithium borate. Materials Research Bulletin, 11(11), 1413–1418. https://doi.org/10.1016/0025-5408(76)90053-2

Dhar, A., Dewerd, L. A., & Stoebe, T. G. (1976). Direct response ultraviolet thermoluminescent dosimeter. Medical Physics, 3(6), 415–417. https://doi.org/10.1118/1.594259

DeWerd, L. A. (1976). Changes in the method of references. Health Physics, 31(6), 525-None.

Dhar, A., Dewerd, L. A., & Stoebe, T. G. (1973). Effects of annealing and cooling processes on thermoluminescence of LiF (TLD100). Health Physics, 25(4), 427–433. https://doi.org/10.1097/00004032-197310000-00008

Srinivasan, M., & Dewerd, L. A. (1973). The effect of plastic deformation on the thermoluminescence of lif (Tld-100) single crystals. Journal of Physics D: Applied Physics, 6(17), 2142–2149. https://doi.org/10.1088/0022-3727/6/17/322

DeWerd, L. A., & Stoebe, T. G. (1972). The emission spectrum of LiF (TLD-100) at low and high exposures. Physics in Medicine and Biology, 17(2), 187–192. https://doi.org/10.1088/0031-9155/17/2/003

Dewerd, L. A. (1972). The Strak Effect of M and N Color Centers in Alkali Halides. Physica Status Solidi (B), 52(1), 207–214. https://doi.org/10.1002/pssb.2220520123

Dewerd, L. A., & Stoebe, T. G. (1971). Comments on “Supralinearity and sensitization of thermoluminescent phosphor lithium fluoride.” Journal of Physics D: Applied Physics, 4(9), L31–L33. https://doi.org/10.1088/0022-3727/4/9/102