2009 | |
1. | J. Usher-Moga, S.M. each, and L.A. DeWerd, "Spectroscopic output of125I and 103Pd low dose rate brachytherapy sources," Med. Phys. 36:270-278 (2009). |
2. | S. Griffin-Meltsner and L.A. DeWerd, "Air kerma based dosimetry calibration for the Leksell Gamma Knife," Med. Phys. 36:339-350 (2009). |
3. | S.M. Holmes, J.A. Micka, and L.A. DeWerd, "Ophthalmic applicators: An overview of calibrations following the change to SI units," Med. Phys. 36:1473-1477 (2009). |
4. | S. M. Holmes, J. A. Micka, and L. A. DeWerd, “Investigation of a 90Sr/90Y source for intra-ocular treatment of wet age-related macular degeneration,” Med. Phys. 36, 4370–4378 (2009). |
5. | L. DeWerd, S. Davis, L. Bartol, and F. Grenzow, “Ionization Chamber Instrumentation,” in Clinical Dosimetry Measurements in Radiotherapy: Proceedings of the AAPM Summer School, edited by D.W. O Rogers and J. E. Cygler (2009). |
6. | M. Mitch, L. DeWerd, R. Minniti, and J. Williamson, “Treatment of Uncertainties in Radiation Dosimetry,” in Clinical Dosimetry Measurements in Radiotherapy: Proceedings of the AAPM Summer School, edited by D.W. O Rogers and J. E. Cygler (2009). |
7. | L. DeWerd, L. Bartol, and S. Davis, “Thermoluminescent Dosimetry,” in Clinical Dosimetry Measurements in Radiotherapy: Proceedings of the AAPM Summer School, edited by D.W. O Rogers and J. E. Cygler (2009). |
2008 | |
1. | R. Selwyn, J. Micka, L.A. DeWerd, R. Nickles, and B. Thomadsen, "Technical Note: The calibration of 90Y-babeled SIR-Spheres using a nondestructive spectroscopic assay", Med Phys. 35:1278-1279 (2008) |
2. | A.B. Paxton, W.S. Culberson, L.A. Dewerd and J. Micka," Primary calibration of coiled 103P dbrachytherapy sources", Med. Phys. 35:32-38 (2008) |
3. | A.A. Nunn, S.D. Davis, J.A. Micka and L.A. DeWerd, "LiF:MgTi:TLD Reponseas a function of photon energy for moderately filtered X-ray spectra in the range of 20-250 kVp relative to 60Co,: Med. Phys. 35, 1859-1869 (2008) |
4. | J.J. VanDamme, W.S.Culberson, L.A.DeWerd and J.A. Micka, "Air-kerma strength determination of a 169Yb high dose rate brachytherapy source,: Med. Phys. 35, 3935-3942 (2008). |
5. | J.M. Fagerstrom, J.A. Micka, and L.A. DeWerd, "Response of an implantable MOSFET dosimeter to 192Ir HDR radiation," Med. Phys. 35, 5279 (2008). |
6. | W.M. Butler, W.S. Bice, Jr, L.A.DeWerd, J.M. Hevezi, M.S. Huq, G.S. Ibbot, J.R. Palta, M.J. Rivard, I.P Seuntjens, and B.R. Thomadsen, Third-party brachytherapy souece calibrations and physicist responsibilities: Report of the AAPM Low Energy Brachytherapy Source Calibration Working Group," Med. Phys. 35:3860-3865 (2008). |
2007 | |
1. | S. M. Beach and L. A. DeWerd, "Deconvolution and reconstruction techniques of closely spaced low-energy spectra from high-purity germanium spectrometry," Nuclear Instruments & Methods in Physics Research A, 572: 794-803 (2007) |
2. |
M.J. Rivard, W.M. Butler, L.A. DeWerd, M. Saiful Huq, G.S. Ibbot. A.S. Meigooni, C.S. Melhus, M.L. Mitch, R. Nath, J.F. Williamson, "Supplement to the 2004 update of the AAPM Task Group No. 43 Report", Med. Phys. 34:2187-2205 (2007) |
3. | T.D. Bohm, J.A. Micka, and L.A. DeWerd. "Monte Carlo aided design of animproved will-type ionization chamber for low energy brachytherapy sources", Med. Phys.34:1274-1285 (2007) |
4. | Z. Li, R.K. Das. L.A. DeWerd. G.S.Ibbott, A.S. Meigooni, J.Perez-Catacynd, M.J. Rivard, R.S. Sloboda, J.S. Williamson, "Dosimetric prerequisites for routine clinical use of photon emitting brachytherapy sources with average energy higher than 50 KeV" Med. Phys. 34:37-40 (2007) |
2006 | |
1. | W. S. Culberson, L. A. DeWerd, D. R. Anderson and J. A. Micka, “Large-volume ionization chamber with variable apertures for air-kerma measurements of low-energy radiation sources,” Rev. Sci. Inst. 77: 015105 –1-9 (2006). |
2. | W. Butler, M. Saiful Huq, Z. LI, B. R. Thomadsen, L. A. DeWerd, G. S. Ibbott, M. G. Mitch, R. Nath, M. J. Rivard, J. F. Williamson, N. J. Yue, and M. Zaider, “Third Party brachytherapy seed calibrations and physicist responsibilities,” Med. Phys. 33: 247-248 (2006). |
3. | P. Allisy-Roberts, P. Ambrosi, D. T. Bartlett, B. M. Coursey, L. A. DeWerd, E. Fantuzzi, and J. C. McDonald, "Measurement Quality Assurance for Ionizing Radiation Dosimetry," ICRU Report 76, Journal of the ICRU 6 (2006). |
4. | M. J. Rivard, S. D. Davis, L. A. DeWerd, T. W. Rusch and S. Axelrod, “Calculated and Measured brachytherapy dosimetry parameters in water for the Xoft Axxent x-ray source: An electronic brachytherapy source,” Med. Phys. 33: 4020-4032 (2006). |
5. | L. A. DeWerd, J. A. Micka, S. M. Holmes and T. D. Bohm, "Calibration of multiple LDR brachytherapy sources," Med. Phys. 33: 3804-3813 (2006). |
6. | S. M. Holmes, L. A. DeWerd, and J. Micka, "Experimental determination of the radial dose function of 90Sr/90Y IVBT sources," Med Phys 33: 3225-3233 (2006). |
7. | K.-H. Ng, N. Jamal and L. DeWerd, "Global Quality Control Perspective for the Physical and Technical Aspects of Screen-film Mammography – Image Quality and Radiation Dose," Radiation Protection Dosimetry 121: 445-451 (2006) |
8. | R. Minniti, H. Chen-Mayer, S.M. Seltzer, M. Saiful Huq, L. Bryson, T. Slowey, J. A. Micka, L. A. DeWerd, N. Wells, W. F. Hanson, and G. S. Ibbott, "The US radiation dosimetry standards for 60Co therapy level beams, and the transfer to the AAPM accredited dosimetry calibration laboratories," Med. Phys. 33: 1074-1077 (2006) |
2005 | |
1. | G. Douysset, J. Gouriou, F. Delaunay, L. DeWerd, K. Stump and J. Micka, “Comparison of dosimetric standards of USA and France for HDR brachytherapy,” Phys. Med. Biol. 50: 1961-1978 (2005). |
2. | S. L. Griffin, L. A. DeWerd, J. A. Micka, and T. D. Bohm, “The effect of ambient pressure on well chamber response: Experimental results with empirical correction factors,” Med. Phys. 32, (3), 700-709 (2005). |
3. | T. D. Bohm, S. L. Griffin, P. M. DeLuca and L. A. DeWerd, “The effect of ambient pressure on well chamber response: Monte Carlo calculated results for the HDR 1000 Plus,” Med. Phys. 32: 1103-1114 (2005) |
4. | K. E. Stump, L. A. DeWerd, D. A. Rudman and S. A. Schima, “Active radiometric calorimeter for absolute calibration of radioactive sources,” Rev. Sci. Instruments 76: 033504-1-9, (2005). |
5. | J. F. Williamson, W. Butler, L. A. DeWerd, M. Saiful Huq, G. S. Ibbott, Z. Li, M. G. Mitch, R. Nath, M. J. Rivard, and D. Todor, “Recommendations of the American Association of Physicists in Medicine regarding the Impact of Implementing the 2004 Task Group 43 Report on Dose Specification for 103Pd and 125I Interstitial Brachytherapy,” Med. Phys. 32 1424-1439 (2005). |
6. | M. J. Rivard, W. M. Butler, L. A. DeWerd, M. Saiful Huq, G. S. Ibbott, C. S. Melhus, M. G. Mitch, R. Nath and J. J. Williamson, “Response to “Comment on ‘Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations’” Med. Phys. 32: 1822-1824 (2005). |
7. | W. S. Culberson, L. A. DeWerd, B. R. Thomadsen, J. A. Micka, and T. D. Bohm, “Calibration of the photon component of 198Au stents,” Brachytherapy 4: 51-58 (2005). |
8. | E. Y. Hirata, C. Cunningham, J. A. Micka, H. Keller, M. W. Kissick and L. A. DeWerd, “Low dose fraction behavior of high sensitivity radiochromic film," Med. Phys. 32: 1054-1060 (2005). |
9. | C. Mistretta, P. DeLuca, J. Sorenson, L. DeWerd, and J. Zagzebski, "Obituary for John Roderick Cameron," Physics Today,p. 69-70 (August 2005) |
10. | L. DeWerd and J. Sorenson, “Obituary: John R. Cameron,” Med. Phys. 32: 1818 – 1819 (2005). |
2004 | |
1. | M. J. Rivard, B. M. Coursey, L. A. DeWerd, W. F. Hanson, M. Saiful Huq, G. S. Ibbott, M. G. Mitch, R. Nath and J. F. Williamson, “Update AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calclation,” Med. Physics 31, (3), 633-674, (2004) |
2. | L. A. DeWerd, M. S. Huq, I. J. Das, G. S. Ibbott., W. F. Hanson, T. W. Slowey, F. Williamson, and B. M. Coursey, “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,” Med. Physics 31, (3), 675-681, (2004) |
3. | M. J. Rivard, W. M. Butler, L. A. DeWerd, M.l Huq, G. S. Ibbott, Z. Li, M. G. Mitch, R. Nath and J. F. Williamson, “Erratum: Update AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calclation, [Med. Phys. 31, 633-674 (2004)]” Med. Physics 31, (12), 3532-3533, (2004) |
4. | M. J. Rivard, W. M. Butler, L. A. DeWerd, M.l Huq, G. S. Ibbott, Z. Li, M. G. Mitch, R. Nath and J. F. Williamson, “Erratum: Update AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calclation, [Med. Phys. 31, 633-674 (2004)]” Med. Physics 31, (12), 3532-3533, (2004) |
2003 | |
1. | L. A. DeWerd and R. Mackie, “Comment on “Comparison of ionization chambers of various volumes for IMRT absolute dose verification [Med. Phys. 30, 119-123 (2003)], Med. Physics 30, (8), 2264, (2003). |
2. | T. D. Bohm, P. M. DeLuca and L. A. DeWerd, “Brachytherapy dosimetry of 125I and 103Pd sources using an updated cross section library for the MCNP Monte Carlo transport code,” Med. Phys. 30, 701-711, (2003). |
3. | L. A. DeWerd, J. A. Micka, R. W. Laird, D. W. Pearson, M. O’Brien and P. Lamperti, “The effect of spectra on calibration and measurement with mammographic ionization chambers,” Med. Phys. 29: 2649-2654 (2002). [Erratum: Med Phys. 30: 483 (2003) |
2002 | |
1. | L. A. DeWerd, J. A. Micka, R. W. Laird, D. W. Pearson, M. O’Brien and P. Lamperti, “The effect of spectra on calibration and measurement with mammographic ionization chambers,” Med. Phys. 29: 2649-2654 (2002). |
2. | M. J. Rivard, B. M. Coursey, L A. DeWerd, W. F. Hanson, M. Saiful Huq, G. Ibbott, R. Nath, and J. Williamson, “Comment on ‘Let’s abandon geometry factors other than that of a point source in brachytherapy dosimetry’ [Med Phys. 29, 1917-1918 (2002)]” Med. Phys. 29, 1919-1920, (2002). |
3. | K. E. Stump, L. A. DeWerd, J. A. Micka, and D. R. Anderson, “Calibration of new high dose rate 192Ir sources,” Med. Phys. 29, 1483-1488, (2002). |
4. | L. A. DeWerd, "Source Standardization and Calibration for Intravascular Brachytherapy, in Intravascular Brachytherapy/Fluoroscopically Guided Interventions", pp. 423-443, S. Balter, R. C. Chan, and T. B. Shope, ed, AAPM Medical Physics Monograph No, 28, Medical Physics Publishing, Madison, WI 2002 |
5. | P. Andreo, M. S. Huq, M. Westermark, H. Song, A. Tilikidis, L. A. DeWerd and K. Shortt, “Protocols for the dosimetry of high-energy photon and electron beams: a comparison of the IAEA TRS-398 and previous international Codes of Practice,“ Phys. Med. Biol. 47: 3033-3053 (2002) |
2001 | |
1. | F. Pernicka, G. A. Carlsson, D. R. Dance, L. A. DeWerd, H.M. Kramer, and K.–H. Ng, “Development of an International Code of Practice for Dosimetry in X-ray Diagnostic Radiology,” in Radiological Protection of Patients in Diagnostic and Interventional Radiology, Nuclear Medicine and Radiotherapy, International Confernece Malaga, Spain, pp. 93-98, 26-30 March 2001, IAEA-CN-85-269 (2001). |
2. | C.-M. Ma, C. W. Coffey, L. A. DeWerd, C. Liu, R. Nath, S. M. Seltzer and J. P. Seuntjens, “AAPM protocol for 40-300 kV x-ray beam dosimetry in radiotherapy and radiobiology," Med. Phys. 28, 868-893, (2001) |
3. | L. A. Buckley, B. R. Thomadsen, and L. A. DeWerd, “The water-equivalence of phantom materials for 90Sr-90Y beta particles,” Med. Phys. 28, 1010-1015, (2001) |
4. | F. Pernicka, G. A. Carlsson, D. R. Dance, L. A. DeWerd, H. M. Kramer and K. H. Ng, "Development of an International Code of Practice for Dosimetry in X-ray Diagnostic Radiology," Proceedings of International Conference on Radiological Protection of Patients in Diagnostic and Interventional Radiology, Nuclear Medicine and Radiotherapy, pp. 93-98, Malaga, Spain, 26-30 March 2001, IAEA C&S Papers Series March 2001. |
5. | J. Perez-Calatayud, F. Ballester, Y. Limami, L. A. DeWerd and K. Nelson, “Assessment of the linear reference air kerma rate of 192Ir wires, “ Phys. Med. Biol. 46: 2201-2207 (2001). |
2000 | |
1. | K.-H. Ng, L. A. DeWerd and R. C. Schmidt, "Mammographic image quality and exposure in South East Asia," Australasian Physical & Engineering Sciences in Medicine 23: (4), 135-137 (2000) |
2. | J. Williamson, B.M. Coursey, L. A. DeWerd, W. F. Hanson, R. Nath, M. J. Rivard and G. Ibbott, "Recommendations of the American Association of Physicists in Medicine on 103Pd interstitial source calibration and dosimetry: Implications for dose specification and prescription," Med. Phys. 27: (4) 634-642 (2000) |
3. | C. de Almeida, L. A. DeWerd, H. Jarvinen, and C. Soares, "Guidelines for the Calibration of Low Energy Photon Sources and Beta-ray Brachytherapy Sources," IAEA SSDL Newsletter, vol.43: 4-25 (2000). |
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