介入法测量工业X射线光机管电压的研究  

Research on Tube Potential of Industrial X-rays Generator by Invasive Measurement

作　　者：吴金杰[1] 郭彬[1] 李兵[1,2] 蒋伟[1,2] 陈法君[1,2] 段盛麟 

机构地区：[1]中国计量科学研究院,北京100029 [2]成都理工大学,四川成都610059 [3]北京航空航天大学,北京100191

出　　处：《计量学报》2015年第5期550-554,共5页Acta Metrologica Sinica

基　　金：国家科技支撑项目(2011BAI02B07);质检公益行业专项(201210003)

摘　　要：建立了基于分压箱介入法测量工业x射线光机管电压的方法，测量了工业X射线光机MGl65的管电压。结果显示管电压纹波小于4％，其中35kV以上，纹波小于1％；7．5-150kV范围内平均管电压与标称值偏差小于1．8％，多次测量管电压重复性好于0．01％，测试重新出束和开机条件下的管电压重复性，结果好于0．02％，达到了低能x射线空气比释动能国家基准量值复现、量值传递和国际比对的要求。An invasive measurement method is established to get the tube potential of industrial X-rays generator base on high voltage divider. The tube potential of X-rays machine MG165 is obtained. The results show the ripple of tube potential is less than 4% , when tube potential is more than 35 kV, the ripple is less than 1%. The relative deviation between average tube potential and nominal value is less than 1.8% in the range from 7.5 kV to 150 kV. The repeatability of average tube potential is better than 0.01%. It is less than 0. 02% on the condition of re-open beam and re-open generator. All the testing results shows this X-rays generator is satisfy the requirement for realization, dissemination and international comparison of primary standard of air kerma in the range of low-energy X-rays.

关 键 词：计量学 工业X射线光机 介入法 管电压 

分 类 号：TB98[一般工业技术—计量学]