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讨论了热释光剂量测量的质量控制问题。读出器中参考光源的光谱应与光电倍增管的匹配,光学系统透射系数要高而稳定,高压须稳定性高,加热器与探测器要保持良好的热接触;探测器应经过筛选,严格控制退火条件,测量参数要优化确定;剂量刻度源的辐射种类和能谱应与所测量的尽量一致,并须按照国家标准规定的要求刻度,文中介绍了几种剂量刻度方法。为达到上述质量要求,提出了应采取的方法和措施。
The quality control of thermoluminescence dose measurement is discussed. The spectrum of the reference light source in the reader should be matched with the photomultiplier tube. The transmission coefficient of the optical system should be high and stable, the high voltage should be stable, and the heater and the detector should maintain good thermal contact. The detector should be screened strictly Controlling the annealing conditions, the measurement parameters should be optimized and determined. The radiation type and energy spectrum of the dose calibration source should be as same as possible with the measurement, and the required calibration should be in accordance with the national standards. Several dose calibration methods are introduced in this paper. In order to meet the above quality requirements, the methods and measures to be taken are put forward.