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首页> 美国卫生研究院文献>Journal of Biomedical Physics Engineering >Evaluation of Effective Sources in Uncertainty Measurements of Personal Dosimetry by a Harshaw TLD System
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Evaluation of Effective Sources in Uncertainty Measurements of Personal Dosimetry by a Harshaw TLD System

机译：通过Harshaw TLD系统评估个人剂量测定不确定性的有效来源

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>Background: The accurate results of the individual doses in personal dosimety which are reported by the service providers in personal dosimetry are very important. There are national / international criteria for acceptable dosimetry system performance. >Objective>: In this research, the sources of uncertainties are identified, measured and calculated in a personal dosimetry system by TLD. >Method: These sources are included; inhomogeneity of TLDs sensitivity, variability of TLD readings due to limited sensitivity and background, energy dependence, directional dependence, non-linearity of the response, fading, dependent on ambient temperature / humidity and calibration errors, which may affect on the dose responses. Some parameters which influence on the above sources of uncertainty are studied for Harshaw TLD-100 cards dosimeters as well as the hot gas Harshaw 6600 TLD reader system. >Results: The individual uncertainties of each sources was measured less than 6.7% in 68% confidence level. The total uncertainty was calculated 17.5% with 95% confidence level. >Conclusion: The TLD-100 personal dosimeters as well as the Harshaw TLD-100 reader 6600 system show the total uncertainty value which is less than that of admissible value of 42% for personal dosimetry services.
机译：>背景：服务提供商在个人剂量学中报告的个人剂量个人剂量的准确结果非常重要。对于可接受的剂量测定系统性能，存在国家/国际标准。 >目的 >：：在这项研究中，不确定性的来源由TLD在个人剂量测定系统中进行识别，测量和计算。 >方法：包括以下来源： TLD灵敏度不均匀，灵敏度和背景受限导致TLD读数变化，能量依赖性，方向依赖性，响应非线性，褪色，取决于环境温度/湿度和校准误差，这可能会影响剂量响应。对于Harshaw TLD-100卡剂量计以及热气Harshaw 6600 TLD读取器系统，研究了影响上述不确定性来源的一些参数。 >结果：在68％的置信水平下，每个来源的不确定性均低于6.7％。计算出的总不确定度为17.5％，置信度为95％。 >结论：TLD-100个人剂量计以及Harshaw TLD-100阅读器6600系统显示的总不确定度值小于个人剂量测定服务的允许值42％。

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