W靶Mo过滤乳腺诊断X射线辐射质构建  

Establishment of the W/Mo X-Rays Radiation

作　　者：王继 吴金杰[2] 任世伟[1] 郭思明[2] 蒋小娟 李宏杰 WANG Ji;WU Jin-jie;REN Shi-wei;GU0Si-ming;JIANG Xiao-juan;LI Hong-jie(Hebei University Of Science and Technology,Shijiazhuang 050018,China;National Institute of MetrologyBeijing 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》2018年第3期432-435,440,共5页Nuclear Electronics & Detection Technology

基　　金：中央级公益性科研院所基本科研业务费(25-AKY1707)资助

摘　　要：在低能基准辐射场,利用RC6M平板型电离室构建了W靶Mo过滤乳腺诊断的五个辐射质,并完成了半值层、同质系数的测量。测量和模拟了所建辐射质能谱。结果显示所建辐射质半值层范围在0.34～0.405 mm,有效能量维持在16 ke V左右。实测能谱与模拟能谱相似度高。完成了W靶Mo过滤乳腺诊断辐射质空气比释动能溯源的初期工作。In this paper,the five molybdenum target molybdenum filter X-rays radiation were established by using RC6M plate ionization chamber in low energy standard radiation field,and the measurement of the HVL and homogeneity coefficient was completed.The energy spectrum of the radiation was measured and simulated.The results showed that the range of the H-VL was between 0.34mm and 0.405mm,and the effective energy was maintained at about 16keV.The measured energy spectrum is similar to the analog energy spectrum.Completed the initial work of make the W/Mo mammography X-rays quality air kerma can be traced.

关 键 词：辐射质 X射线 半值层 同质系数 

分 类 号：R814.3[医药卫生—影像医学与核医学]