中国医学装备2017,Vol.14Issue(2):11-14,15,5.DOI:10.3969/J.ISSN.1672-8270.2017.02.004
校准用职业人员眼晶状体剂量当量Hp(3)标准的建立
Establishment of standards of Hp(3) for the calibration of eye-lens dose equivalent dosimeters
摘要
Abstract
Objective:To establish the X-ray standard was used to calibrate Hp(3) dosimeter in order to satisfy the requirement of eye-lens dose equivalents for the radiological occupational staff.Methods:The conventional values (Hp(3)) on the reference point of the narrow beams of X-ray fields were obtained by means of the product of air kerma (Kair) and the conversion coefficients (hp(3,ɑ)) recommended by ICRP116 recommendation. And these researches can be used by standard ionization chamber dosimeter. Finally, provided the conventional true value Hp(3) at calibrate point.Results:The standards and calibration program of calibrations eye-lens dose equivalent dosimeter were established under the X-ray radiation field. The detection error between slab phantom recommended by ISO and head phantom recommended by the 116th publication of ICRP was lower when the TLD was used to detect result.Conclusions:The standards for calibration Hp(3) dosimeters can satisfy the requirement of calibration for radiological occupational staff. It also provides theoretical foundation for detection data that assessed Hp(3) dosimeters and then improves trace ability and reliability of detection data of Hp(3) in national radiation supervision and inspection network.关键词
眼晶状体剂量当量/剂量当量Hp(3)/模体/标准刻度/溯源Key words
Eye-lens dose equivalent/Hp(3)/Phantom/Standard calibration/Traceability分类
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欧向明,赵士菴,范瑶华..校准用职业人员眼晶状体剂量当量Hp(3)标准的建立[J].中国医学装备,2017,14(2):11-14,15,5.基金项目
国家科技支撑计划(2014BAI12B04)“职业性接触医用辐射和重金属及纳米材料健康危害的控制研究”[First-author’s address] National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Key Laboratory of Radiation Protection and Nuclear Emergency for China CDC, Beijing 100088, China (2014BAI12B04)