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一、引言热中子散射是研究凝聚态物质(包括固体和液体)的强有力的工具之一。足够的强度和良好的分辨率是做好中子散射实验的两大前提。一台中子谱仪分辨率的高低,与单色器、准直器、中子波长和几何条件等多种因素有关,而采取切实有效的措施去尽量减小实验本
I. INTRODUCTION Thermal Neutron Scattering is one of the powerful tools for studying condensed matter, including solids and liquids. Sufficient intensity and good resolution are two prerequisites for good neutron scattering experiments. A neutron spectrometer resolution level, and monochromator, collimator, neutron wavelength and geometry conditions and other factors, and to take effective measures to minimize the experimental