Franci Daniele, Aureli Tommaso, Cardellini Francesco
Department of Rome, ARPA Lazio, Via Giuseppe Saredo 52, Rome 00100, Italy
Department of Rome, ARPA Lazio, Via Giuseppe Saredo 52, Rome 00100, Italy.
Radiat Prot Dosimetry. 2015 Dec;167(4):425-8. doi: 10.1093/rpd/ncu360. Epub 2014 Dec 19.
The aim of this study was to investigate the effect of ageing and fading on PADC detector response, as a function of the storage time and temperature. Several groups of CR-39 detectors provided by Radosys, Ltd. were exposed at the reference radon chamber of the Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, at the ENEA centre in Casaccia. The results indicate that low-temperature storage inhibits the effect of both ageing and fading. Finally, the overall reduction in CR-39 sensitivity due to the combined ageing/fading effect was estimated. In particular, the sensitivity of the detectors continuously exposed in air at room temperature over 6 and 3 months was reduced, respectively, by 7.5 and 4 %.
本研究的目的是调查老化和衰退对聚碳酸酯核径迹探测器（PADC）响应的影响，该影响是储存时间和温度的函数。由Radosys有限公司提供的几组CR-39探测器在位于卡萨恰的意大利国家电力公司（ENEA）中心的国家电离辐射计量研究所的参考氡室中进行了照射。结果表明，低温储存可抑制老化和衰退的影响。最后，估算了由于老化/衰退综合效应导致的CR-39灵敏度的总体降低情况。特别是，在室温空气中连续暴露6个月和3个月的探测器灵敏度分别降低了7.5%和4%。
