TLD SYSTEM FOR THE MONITORING OF THE ENVIRONMENTAL RADIOACTIVITY
TLD SYSTEM FOR THE MONITORING OF THE ENVIRONMENTAL RADIOACTIVITY
复制标题
用于监测环境放射性的 TLD 系统
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
I. Tudor
中科院分区：
文献类型：
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作者：
A. Stochioiu;M. Sahagia;I. Tudor
本文介绍了一种用于环境放射性测量的高灵敏度X射线衍射系统。它是基于使用TL detecors类型LiF：Mg，Cu，P，商业上称为GR-200 A。本所设计的剂量计由3个探测器组成，测量值按算术平均值计算。选择了非常灵敏的TL读取器READER ANALYSER RA'94，并设计了最佳热循环，以提高测量性能。对于每个位置，使用一组3个剂量计，并根据放射性水平和报告要求选择1至100天的测量间隔。通过将剂量计暴露在参考X和伽马辐射场中来确定系统的技术特性，例如IEC标准61066：iun.2006“用于个人和环境监测的热致发光剂量测定系统”所要求的。主要的技术参数是最高质量的，并建议使用它在环境剂量当量率水平，由于正常的天然放射性，在开放地区的环境放射性调查。本文描述了表征方法和测量结果，以及它们的相关性。
The paper presents a high sensitivity TLD system, designed for the survey of the environmental radioactivity. It is based on the use of TL detecors type LiF:Mg, Cu, P, commercially known as GR-200A. The dosimeter designed in our Institute, contains 3 detectors, and the measuremnt value is calculated as the arithmetic mean. A very sensitive, TL Reader, READER ANALYSER RA’94 was chosen and an optimal thermal cycle was designed, such as to enhance the measurement performances. For each placement, a set of 3 dosemetrs is used, and survey intervals from 1 to 100 days, depending on the radioactivity level and reporting requirements, are selected. The technical characteristics of the system were detemined by exposing the dosimeters in reference X and gamma radiation fields, such as required by the IEC standard 61066:iun.2006 “Thermoluminiscence dosimetry systems for personal and environmental monitoring”. The main technical parameters are of highest quality and recommend it for use in the survey of the environmental radioactivity, at the level of ambient dose equivalent rate, due to normal natural radioactivity, in open areas. The paper describes the method of characterisation and measurement results, as well as their relevance.