Establishment of standards of Hp(3) for the calibration of eye-lens dose equivalent dosimeters
10.3969/J.ISSN.1672-8270.2017.02.004
- VernacularTitle:校准用职业人员眼晶状体剂量当量Hp（3）标准的建立
- Author:
Xiangming OU
;
Shian ZHAO
;
Yaohua FAN
- Keywords:
Eye-lens dose equivalent;
Hp(3);
Phantom;
Standard calibration;
Traceability
- From:
China Medical Equipment
2017;14(2):11-14,15
- CountryChina
- Language:Chinese
-
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.
