乳腺摄影能量范围内散射辐射的实验和理论能量及角度依赖性。

Experimental and theoretical energy and angular dependencies of scattered radiation in the mammography energy range.

作者信息

Klein D J, Chan H P, Muntz E P, Doi K, Lee K, Chopelas P, Bernstein H, Lee J

出版信息

Med Phys. 1983 Sep-Oct;10(5):664-8. doi: 10.1118/1.595369.

Abstract

Predicted scatter characteristics from a Monte Carlo code have been compared to an experiment for a 4.0-cm-thick acrylic resin (Plexiglas) phantom and 27.3-keV radiation. The results show generally good agreement, except that in the scattered spectra the predictions appear to underestimate the proportion of photons in the low-energy tail of the scattered radiation. The angular dependency of the energy-integrated scattered radiation fluence is in excellent agreement with the predictions.

摘要

已将蒙特卡罗代码预测的散射特性与针对4.0厘米厚的丙烯酸树脂（有机玻璃）体模和27.3千电子伏辐射进行的实验进行了比较。结果总体显示出良好的一致性，只是在散射光谱中，预测结果似乎低估了散射辐射低能尾部光子的比例。能量积分散射辐射注量的角度依赖性与预测结果高度吻合。