摘要
根据原子的跃迁能量和能量吸收限,确定了用和靶材料相同的材料做成滤波片,可以很好地吸收靶物质所产生的低能射线,使最初的多色X射线谱近似单色化,并用基于蒙特卡罗方法的Egsnrc软件对硬化校正方案进行了仿真分析,获得了很好的结果。
On the basis of atomic transition enerygy and absorbed bounds,a filter of the same ingredient as target material was adopted. This method can make the original polychrome X-ray turn into almost homochrome. Simulation analysis was taken by Egsnrc software based on Monte Carlo method and good effect gained.
出处
《物理测试》
CAS
2005年第6期12-15,共4页
Physics Examination and Testing
关键词
跃迁能量
X射线
滤波片
硬化校正
蒙特卡罗方法
transition energy
X-ray
filter
beam hardening correction
Monte Carlo method
