乳腺X射线空气比释动能标准装置的研究  

Study on Standard Device for Mammography X-Ray Air Kerma

作　　者：李云飞 王继 吴金杰[2] 任世伟[1] 李若楠 LI Yun-fei;WANG Ji;WU Jin-jie;REN Shi-wei;LI Ruo-nan(Hebei University of Science and Technology,Shijiazhuang 050018,China;China Institute of Metrology,Beijing 100029,China)

机构地区：[1]河北科技大学,石家庄050018 [2]中国计量科学研究院,北京100029

出　　处：《核电子学与探测技术》2019年第6期703-706,共4页Nuclear Electronics & Detection Technology

基　　金：质量技术监督能力提升专项(ANL1902)资助。

摘　　要：基于医用乳腺X射线诊断机,设计建造了乳腺X射线参考辐射装置。通过拟合法测得各辐射质下的半值层,实验结果表明辐射质达到既定要求。利用溯源至低能X射线空气比释动能基准的RC6M作为标准电离室,得到了乳腺X射线参考辐射场的空气比释动能率,实现了乳腺X射线半导体剂量仪的校准。Based on medical mammography X-ray diagnostic machine,a mammography X-ray reference radiation device was designed.The half-value layer under each radiation quality was measured by fitting method.The experimental results show that the radiation quality has reached the established requirements.Using the RC6 M traceable to the low-energy X-ray air kerma benchmark as the standard ionization chamber,the air kerma rate of the mammography X-ray reference radiation field was obtained,and the calibration of the mammography X-ray semiconductor dosimeter was realized.

关 键 词：空气比释动能 乳腺X射线 半值层 量值传递 

分 类 号：TB98[一般工业技术—计量学]