The energy response of agar-alanine phantom dosimeter to gamma radiation
- 1 May 1988
- journal article
- research article
- Published by Wiley in Medical Physics
- Vol. 15 (3) , 380-383
- https://doi.org/10.1118/1.596235
Abstract
Calculations of the energy response of an electron paramagnetic resonance (EPR) signal induced by gamma radiation in an agar-alanine phantom dosimeter are presented. Theoretically calculated slopes of the EPR signal calibration lines are comparable with those obtained experimentally for low-(50 kVp), medium-(662 keV), and high-(15 MVp) energy photons. The sensitivity of the phantom dosimeter (EPR signal amplitude/Gray) varies less than 2% within the 150- to 20-MeV energy range. For energies above 150 keV, the influence of variations in the size of alanine crystals is negligible.Funding Information
- U.S. Department of Energy and Biomedical Research (DE-AC02-76CH000016)
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