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Polymer gamma dosimeter
Author(s) -
Chung Woon H.
Publication year - 1981
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1981.070260706
Subject(s) - dosimeter , vinyl alcohol , polyacrylamide , polystyrene , polymer , materials science , aqueous solution , irradiation , dosimetry , radiochemistry , polymer chemistry , chemistry , composite material , organic chemistry , nuclear medicine , medicine , physics , nuclear physics
A chemical dosimeter has been developed based on the gas evolution of polymers by γ radiation. The polymers used in this dosimetry were polyacrylamide, poly(vinyl alcohol), and polystyrene. The irradiating γ source was a 60 Co annular cell calibrated with the Fricke dosimeter, an average dose rate being 630 rad/min. The irradiated samples were aqueous solution, i.e., polyacrylamide oxygen saturated in water, poly(vinyl alcohol) aerated in water, and polystyrene oxygen saturated in carbon tetrachloride. A manometer system was used as the gas‐measuring device. It was found that the dosimeter showed good linearity above 1 Mrad.