原子能科学技术Issue(8)：1483-1487,5.DOI:10.7538/yzk.2015.49.08.1483
冷中子非弹性散射谱仪能量分辨率的模拟研究
Simulation Study on Energy Resolution of Cold Neutron Inelastic Scattering Spectrometer
摘要
Abstract
The energy resolution is an important index for simulation and calculation in the design of neutron spectrometers .In this paper ,the working principles of neutron triple‐axis spectrometer and neutron multi‐channel spectrometer were illustrated .With MCSTAS software ,the neutron tracing models of the two spectrometers were built , and the quantitative calculations of the energy resolution in different neutron incident and final energy were completed based on the simulation results . The multi‐channel spectrometer has relatively low energy resolution comparing with triple‐axis spectrome‐ter because of the variation of scattering plane .However ,the variation of scattering plane could optimize the special arrangement of analyzers and detectors in multi‐channel system .Through analyzing the simulation results ,the appropriate collimator types were given in order to improve the energy resolution of multi‐channel spectrometer .关键词
中子散射/能量分辨率/MCSTAS模拟/中子广谱谱仪Key words
neutron scattering/energy resolution/MCSTAS simulation/neutron multi-channel spectrometer分类
数理科学引用本文复制引用
程鹏,张红霞,鲍威,郝丽杰,魏国海,刘蕴韬,陈东风..冷中子非弹性散射谱仪能量分辨率的模拟研究[J].原子能科学技术,2015,(8):1483-1487,5.基金项目
国家自然科学基金资助项目 （）
