Time-resolved investigations of radiophotoluminescence in metaphosphate glass dosimeters
Time-resolved investigations of radiophotoluminescence in metaphosphate glass dosimeters
复制标题
偏磷酸盐玻璃剂量计中放射光致发光的时间分辨研究
DOI：
10.1007/bf01197673
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
E. Unsöld
中科院分区：
文献类型：
--
作者：
H. Schneckenburger;D. Regulla;E. Unsöld
银激活的偏磷酸盐玻璃样品在受到电离辐射后表现出剂量依赖的放射光致发光(RPL)。利用紫外光脉冲激发和时间分辨光子探测，区分了RPL与杂散光和寄生发光的不同衰减时间。建立了计算机控制的单光子计数系统，对RPL信号进行了定量评价。RPL和吸收剂量之间的线性关系被证明可以精确到亚mGy值范围。这项测量技术使玻璃剂量计即使在与每月环境辐射入射量相对应的剂量下也可以使用。
Silver-activated metaphosphate glass samples show a dose-dependent radiophotoluminescence (RPL) after exposure to ionizing radiation. RPL is discriminated from stray light and parasitic luminescence due to the different decay times by use of uv-laser pulse excitation and time-resolved photon detection. A computer controlled single-photon counting system is set up for quantitative evaluation of the RPL signal. A linear relationship between RPL and absorbed dose is proven down to the sub-mGy range. The measuring technique allows glass dosimeters to be applied even at doses corresponding to the environmental radiation incidence per month.