冷中子三轴谱仪的整体配置和主要部件的参数设计  

Design for Specification of Layout and Main Components of Cold Neutron Triple-Axis Spectrometer

作　　者：刘丽鹃[1] 谢超美[1] 宋建明[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《原子能科学技术》2011年第11期1352-1355,共4页Atomic Energy Science and Technology

基　　金：中国工程物理研究院科学技术发展基金课题(2011B0103013)

摘　　要：从冷中子导管系统的实际情况出发,以程序模拟为主要手段,通过计算和分析得到最重要的设计参数:可用中子波长范围、样品处束流强度和能量分辨率。在这些参数的基础上,结合实际给出了谱仪的整体配置以及主要部件的部分参数,如能量和动量转移范围、单色器和分析器的起飞角范围和嵌镶角、样品台散射角、准直器的准直度及本底和剂量要求等。According to the designed cold neutron guide system and by means of simulating calculation and analyzing,the most important parameters for design were got which are available range of neutron wavelength,flux at the sample position and resolution of energy.Based on these parameters,the specifications of the space layout of the spectrometer and its main components were given out,including transmission range of energy and momentum,angle range and mosaic spread of monochromator and analyzer,scattering angle of the sample table,collimation angle of collimators,and the background and dose.

关 键 词：中子三轴谱仪 冷中子导管系统 MCSTAS软件 

分 类 号：O571.5[理学—粒子物理与原子核物理]