Discussion of Hp(3)calibration with two thermoluminescent dosimeters in the same standard X-ray RQR radiation field
Objective To compare Hp(3)calibration with a homemade(A)thermoluminescent dosimeter(TLD)and an imported(B)TLD in a standard X-ray RQR radiation field,to explore the different responses of A and B,and to provide foundation for the calibration of Hp(3).Methods A column mode was selected.Hp(3)calibration was performed using A and B in a standard X-ray RQR radiation field in the Secondary Standard Dosimetry Laboratory,National Institute for Radi-ological Protection,China Center for Disease Control and Prevention.Angle response,energy response,and linear response were calibrated with RQR4(60 kV),RQR7(90 kV),and RQR9(120 kV),respectively.Results In terms of angle re-sponse,the calibration results of A were relatively high,while the calibration results of B were relatively low.In terms of en-ergy response,the calibration results showed a similar pattern to angle response.In terms of linear response,the calibration results of both A and B were satisfactory.Conclusion Both A and B can be used for normal calibration of Hp(3)in a standard X-ray RQR radiation field.However,in actual monitoring,attention should be paid to the energy and angle re-sponse values of TLDs.
Standard X-ray RQR fieldEye lensPersonal dose equivalent Hp(3)Thermoluminescent dosimeter
NETL
NSTL
万方数据
