SENSITIZATION OF POLYMERIC TRACK DETECTORS WITH CARBON-DIOXIDE

被引：17
|
作者：
FUJII, M
YOKOTA, R
KOBAYASHI, T
HASEGAWA, H
机构：
[1] INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN
[2] AOYAMA GAKUIN UNIV,SETAGAYA KU,TOKYO 157,JAPAN
[3] FUKUVI CHEM IND CO LTD,FUKUI 91905,JAPAN
来源：
RADIATION MEASUREMENTS | 1995年 / 25卷 / 1-4期
关键词：
SR-90; CR-39; POLYMER; TRACK DETECTOR; HIGH SENSITIVITY; AGING; CARBON DIOXIDE;
D O I：
10.1016/1350-4487(95)00056-K
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effect of CO2 on the sensitivity of polymeric track detectors was studied, It has been found that the sensitivity of SR-90 is dependent on the amount of CO2 dissolved in the polymer at the time of etching. It has been also found that CR-39 can be sensitized to some extent with an aging in CO2. Since the sensitization in CO2 is possible even a long time after the irradiation, the mechanism of the latent track formation by CO2 is quite different from that by O-2. This would be the key to achieve the long term stability of polymeric track detectors such as SR-90 and CR-39.
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页码：141 / 144
页数：4
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