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

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.