Effects of Heat-Treatment and Gamma-Ray Irradiation on the Etch-Pit Formation in Ally Diglycol Carbonate Resin

概要

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Allyl diglycol carbonate resin plates possessing alpha tracks were etched after heat-treatment, or after gamma-ray irradiation. The strong heat-treatment and irradiation brought similar effects to two indicators: etch-pit diameter and bulk etching rate. The heat-treatment above 120°C lasting for 1h and irradiation above 4.0×10<SUP>2</SUP> Gy increased the indicators and caused the etch-pits to disappear faster. On the other hand, mild heat-treatment brought the opposite effects to under-cured resin. A reduction of the etch-pit diameter was observed in the resin exposed to heat-treatments between 80°C and 120°C lasting for 1h. These phenomena were observed in the study of plates in which alpha tracks were made after the above mentioned heattreatment or irradiation. These results suggest not only the conditions under which the resin may be used, but also the possibility of enhancement or suppression of etching speed, and of estimation of thermal history or measurement of gamma-ray dosage.
社団法人日本原子力学会の論文
1997-10-25