基于RMC程序的用康普顿轮廓进行束缚态电子多普勒展宽修正研究

堆用蒙特卡罗程序RMC具备中子、光子、电子耦合输运能力，能完成精确的屏蔽计算，其中光子输运过程采用光子数据库进行了康普顿散射模拟。本文对康普顿散射物理原理及多普勒展宽方法进行分析，使用康普顿轮廓数据对束缚态电子进行多普勒展宽修正，实现了RMC程序对自由电子和束缚态电子的选择性处理。通过核素算例测试，观察到了多普勒能谱展宽的效应，证明了该方法的正确性。通过对典型压水堆组件的计算和对比，验证了用康普顿轮廓进行束缚态电子多普勒展宽修正的必要性和正确性。

Study of Bounding Electron Doppler Broadening Correction with Compton Profile Based on RMC Code

The Monte Carlo code RMC has the capacity of neutron-photon-electron coupling calculation and can complete the precise shielding calculation. The Compton scattering simulation was carried out in photon transport process with the photon-atomic library. Through the analysis of the Compton scattering physical principle and the Doppler broadening method, the bounding electron Doppler broadening correction was completed with Compton profile and a selective treatment of free electron and bounding electron was achieved by using RMC code. The radionuclide test was carried out to observe the effect of Doppler broadening spectroscopy, and the correctness of the method is proved. Through the calculation and comparison of a typical pressurized water reactor component, the necessity and correctness of the Doppler broadening correction are verified.