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目的建立一个移动式热释光剂量测量系统实验室自校准方法。方法利用自备辐照器对热释光探测器进行定量照射,然后用已经检定的实验室标准剂量测量系统检测获得个人剂量当量值Hp(10),以此剂量当量值Hp(10)作为约定真值,用相同的受照探测器在便携式热释光剂量读出仪上进行读数,并计算出校准因子。结果用上述方法校准的便携式热释光剂量测量系统以及实验室标准剂量测量系统,对同一批受照的热释光探测器进行监测,两组数据无显著性差异。结论上述便携式热释光剂量测量系统实验室自校准方法结果可信,并且简便、快速、易行,是解决现场个人剂量应急监测装备校准的好方法。
Objective To establish a laboratory self-calibration method for mobile thermoluminescence dosimetry system. Methods A self-prepared irradiator was used to irradiate the luminescence detector quantitatively. Then, an individual dose equivalent Hp (10) was obtained by using a laboratory standard dosimetry system. The equivalent dose Hp (10) As a conventionally true value, the same illuminated probe is used to read the reading on a portable thermoluminescent dosimeter and the calibration factor is calculated. Results The portable thermoluminescence dosimetry system calibrated with the above method and the laboratory standard dosimetry system were used to monitor the same batch of irradiated thermoluminescence detectors with no significant difference between the two sets of data. Conclusion The above-mentioned self-calibration method of the portable thermoluminescence dosimetry system is credible and simple, rapid and easy to perform. It is a good way to solve the calibration of personal dose emergency monitoring equipment on site.