The Radiation Monitoring by Mail (RMM) Service of the UWMRRC now provides an ISO/IEC 17025:2005 compliant and A2LA-accredited TLD-based linac output verification service that can be used as part of your TG-51 linac QA protocol. This service is accepted by the American College of Radiology (ACR) to fulfill the accreditation requirement for independent verification of output for each linear accelerator beam.
Four (4) well characterized TLD-100 μcubes (1mm x 1mm x 1mm) are packaged in waterproof Virtual Water™ ion chamber surrogates (probes). One probe is used per energy.
Simply replace your ion chamber with the TLD probe and irradiate to 100 cGy ADW at 10 cm (photons) or dref (electrons). Return the case containing the TLD probes to the UWMRRC via any overnight delivery service. We will analyse and report your results within 48 hrs of receipt. Please let us know the date you will be performing the QA to expedite processing of the TLDs. Our stated uncertainty at k=2 is <5%.
The service can be used as a one time check on your system or as a subscription. Under the subscription service, we will automatically send you a set of probes on an annual, semi-annual, quarterly, or monthly basis.
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For questions regarding UWRMM services, please e-mail us at: firstname.lastname@example.org
You may also phone us at: 608/265-9579