Design progress of the SANS instrument at CPHS

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• 作者：T.C. Huang^a ; ^b ; ^{huangtuchen@gmail.com} ; H. Gong^a ; B.B. Shao^a ; D. Wang^a ; X.Z. Zhang^a ; K. Zhang^a ; X.W. Wang^a ; X.L. Guan^a ; C.-K. Loong^a ; J.Z. Tao^c ; L. Zhou^c ; Y.B. Ke^c
• 关键词：Pulsed neutron source ; SANS ; Neutron instrumentation ; Neutron scattering
• 刊名：Physics Procedia
• 出版年：2012
• 期刊代码：P128_18753892
• 类别：ph
• 出版时间：2012
• 卷：26
• 期：Complete
• 页码：294-298
• 文件大小：1489 K

摘要

Progress has been made since we presented the preliminary physical design of the new time-of-铿俰ght SANS instrument at the Compact Pulsed Hadron Source (CPHS) in Tsinghua University during the UCANS-I meeting. The 铿乶al physical design of the SANS instrument was approved in January 2011 and engineering construction has began. The design of collimator and beamline shielding is completed. A prototypical bandwidth chopper was fabricated and initial tests of the mechanical performance were satisfactory. An evaluation of two in-house-made LPSDs carried out at Hokkaido University showed a reasonable pulse-height spectrum and an as-expected spatial resolution of 8 mm. The design of the front-end electronics and data acquisition system are currently under way.