Sneha C, Pradhan S M, Adtani M M
Radiological Physics and Advisory Division, Bhabha Atomic Research Centre (BARC), Mumbai, India.
Radiat Prot Dosimetry. 2010 Sep;141(2):168-72. doi: 10.1093/rpd/ncq154. Epub 2010 May 28.
Personnel monitoring of radiation workers in India is carried out using a thermoluminescence dosemeter (TLD) system based on CaSO(4):Dy Teflon TLD disc. The dose due to occupational exposure for a majority of radiation workers is very small and hence is reported as zero. In view of this the detection of low levels of occupational dose over and above a variable background assumes great importance. The present values of reporting levels are based on the standard deviations of annealed dosemeters and therefore are fixed irrespective of period of use and background radiation levels. The validity of these levels is investigated under laboratory conditions. The laboratory values of standard deviations cannot be used as an indication of the imprecision that occurs during service. Therefore, the validity of the reporting levels is also investigated for control dosemeters used in routine service.
印度对辐射工作人员的个人监测是使用基于硫酸钙（CaSO₄）:镝（Dy）聚四氟乙烯热释光剂量计（TLD）圆盘的系统来进行的。大多数辐射工作人员的职业照射剂量非常小，因此报告为零。鉴于此，在可变背景之上检测低水平的职业剂量具有极其重要的意义。当前的报告水平值基于退火剂量计的标准偏差，因此无论使用期限和背景辐射水平如何都是固定的。在实验室条件下对这些水平的有效性进行了研究。标准偏差的实验室值不能用作服务期间出现的不精确性的指标。因此，还对日常服务中使用的控制剂量计的报告水平的有效性进行了研究。
