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Performance Study of BeO Optically Simulated Luminescent Dosimetry System for Hp(10) Measurement
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摘要: 为掌握BeO光释光剂量测量系统的计量学性能指标，验证其是否满足个人剂量监测需求，将内含BeO光释光探测器的光释光剂量计置于标准X和γ射线参考辐射场中，对其进行辐照，针对个人剂量当量Hp(10)，开展非线性响应、变异系数、能量响应、角响应与重复性等性能测试研究。在50 μSv～1 Sv剂量范围内非线性响应为0.92～1.05，变异系数为0.55%～4.8%；在33 keV～1.25 MeV能量范围内能量响应为0.71～1.01；在0°～±75°入射角范围内，角响应为0.97～1.22；分别辐照剂量1 mSv、5 mSv和10 mSv并重复8次，相应的剂量重复性分别为0.99～1.00、0.99～1.00和0.97～1.00。结果表明BeO光释光剂量测量系统的性能指标均满足IEC 62387-2020标准要求，可开展个人剂量监测服务。Abstract: To grasp the metrological performance indicators of the BeO optically stimulated luminescent (OSL) dosimetry system and verify whether it meets the needs of personal dose monitoring, the OSL dosemeter containing BeO optically stimulated luminescent detectors was placed in and irradiated with X-ray and γ-ray reference radiation fields. Performance test research on nonlinear response, coefficient of variation, energy response, angular response, and repeatability were carried out for the personal dose equivalent Hp(10). The nonlinear response ranged from 0.92 to 1.05 in the dose range of 50 μSv to 1 Sv, and the coefficient of variation ranged from 0.55% to 4.8%. The energy response ranged from 0.71 to 1.01 in the energy range of 33 keV to 1.25 MeV. The angular response ranged from 0.97 to 1.22 in the range of 0° to ±75° angle of incidence. The irradiation dose of 1 mSv, 5 mSv and 10 mSv were repeated 8 times, and the corresponding dose repeatability were 0.99 - 1.00, 0.99 - 1.00 and 0.97 - 1.00, respectively. The results showed that the BeO OSL dosimetry system meets the requirements of the IEC 62387-2020 standard and can be used for personal dose monitoring.
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Key words:
- BeO /
- OSL dosimetry system /
- energy response /
- dose monitoring
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图 1 不同剂量照射条件下的非线性响应结果
Figure 1. Non-linear response under different dose irradiation conditions
图 2 不同剂量照射条件下的变异系数结果
Figure 2. Coefficient of variation under different dose irradiation conditions
图 3 不同能量照射条件下的能量响应结果
Figure 3. Energy response under different energy irradiation conditions
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[1] 张燕, 郑森兴, 黄丽华, 等. OSL 与TLD 两种个人剂量监测方法的线性和能量响应的研究[J]. 中国辐射卫生, 2014, 23(6): 555-557. [2] 吴迪. 个人与环境监测用X, γ辐射光释光剂量计剂量特性的研究[D]. 衡阳: 南华大学, 2017. [3] Kenji T. Progress in science and technology on photostimulable BaFX: Eu2+(X= Cl, Br, I) and imaging plates[J]. J Lumin, 2002, 100(1-4): 307-315. doi: 10.1016/S0022-2313(02)00447-7 [4] Bulur E, Göksu HY. OSL from BeO ceramics: new observations from an old material[J]. Radiat Meas, 1998, 29(6): 639-650. doi: 10.1016/S1350-4487(98)00084-5 [5] Haninger T, Hodlmoser H, Figel M. Properties of the BeOSL dosimetry system in the framework of a large-scale personal monitoring service[J]. Radiat Prot Dosimetry, 2016, 170(1-4): 269-273. doi: 10.1093/rpd/ncv425 [6] 中华人民共和国国家卫生健康委员会. 职业性外照射个人监测规范: GBZ 128-2019[S]. 北京: 中国标准出版社, 2019. [7] International Electrotechnical Commission. Radiation protection instrumentation – Passive integrating dosimetry systems for personal and environmental monitoring of photon and beta radiation: IEC 62387 [R]. Switzerland: IEC, 2012. [8] International Electrotechnical Commission. Radiation protection instrumentation - Dosimetry systems with integrating passive detectors for individual, workplace and environmental monitoring of photon and beta radiation: IEC 62387 [R]. Switzerland: IEC, 2020. [9] 国家国防科技工业局. 个人监测用X, γ辐射光释光剂量测量(装置)系统: JJG(军工)38-2014 [S]. 北京: 国家国防科技工业局, 2014. [10] Jahn A, Sommer M, Ullrich W, et al. The BeOmax system – Dosimetry using OSL of BeO for several applications[J]. Radiat Meas, 2013, 56: 324-327. [11] 张璇, 黄建微, 李德红, 等. β射线剂量仪校准因子不确定度分析[J]. 计量科学与技术, 2022, 66(2): 21-24. doi: 10.12338/j.issn.2096-9015.2021.0228 [12] 秦永春, 杨小勇, 陈维, 等. 几种过滤型鉴别式热释光个人剂量计性能探讨[J]. 辐射防护, 2014, 34(6): 400-403. -
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