Published May 1988 | Version v1
Journal article Metadata-only

Energy response of agar-alanine phantom dosimeter to gamma radiation

Creators

  • 1. Brookhaven National Laboratory, Medical Department, Upton, New York 11973

Description

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

Additional details

Publishing Information

Journal Title
Med. Phys.
Journal Volume
15
Journal Issue
3
Series
Med. Phys.
Journal Page Range
380-383
ISSN
0094-2405
CODEN
MPHYA

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19084757
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S61: RADIATION PROTECTION AND DOSIMETRY;
Descriptors DEI
AGAR; ALANINES; CALIBRATION; DOSE RATES; DOSEMETERS; ELECTRON SPIN RESONANCE; GAMMA DOSIMETRY; PHANTOMS; RADICALS; SENSITIVITY; TISSUE-EQUIVALENT MATERIALS
Descriptors DEC
AMINO ACIDS; CARBOHYDRATES; CARBOXYLIC ACIDS; COLLOIDS; DISPERSIONS; DOSIMETRY; MAGNETIC RESONANCE; MATERIALS; MEASURING INSTRUMENTS; MOCKUP; ORGANIC ACIDS; ORGANIC COMPOUNDS; POLYSACCHARIDES; RESONANCE; SACCHARIDES; STRUCTURAL MODELS