Sensitivity of a mixed field dosimetry algorithm to uncertainties in thermoluminescent element readings
- Univ. of Michigan, Ann Arbor, MI (United States)
- Georgia Institute of Technology, Atlanta, GA (United States); and others
An error analysis of the effects of the algorithms used to resolve the deep and shallow dose components for mixed fields from multi-element thermoluminescent (TLD) badge systems was undertaken for a commonly used system. Errors were introduced independently into each of the four element readings for a badge, and the effects on the calculated dose equivalents were observed. A normal random number generator was then utilized to introduce simultaneous variations in the element readings for different uncertainties. The Department of Energy Laboratory Accrediatation Program radiation fields were investigated. Problems arising from the discontinuous nature of the algorithm were encountered for a number of radiation sources for which the algorithm misidentified the radiation field. Mixed fields of low energy photons and betas were found to present particular difficulties for the algorithm. The study demonstrates the importance of small fluctuations in the TLD element`s response in a multi-element approach. 24 refs., 5 figs., 7 tabs.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 255120
- Journal Information:
- Health Physics, Journal Name: Health Physics Journal Issue: 3 Vol. 68; ISSN HLTPAO; ISSN 0017-9078
- Country of Publication:
- United States
- Language:
- English
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