The Compact Pulsed Hadron Source (CPHS) of Tsinghua University will produce neutrons by the Be(n,p) reaction through bombarding a proton beam with 13MeV/50Hz/1.25mA from a LINAC system on a beryllium target. One of the purposes of this neutron source facility is to provide the neutron scattering capability for characterization of materials, especially soft matters and biological systems. Cold neutrons (wavelength > 4 Å) are essential to characterize the structure of these materials over the length scale of ∼100 nm with good resolution. We discuss the design and optimization of a cold neutron source (CNS) which employs a solid methane moderator for cold neutron generation. The moderator configuration, the associated cryogenic system, and operation conditions will be discussed.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4931-6
PROCEEDINGS PAPER
Design of the Moderator and Cryogenic System for Generating Cold-Neutrons at the CPHS
Qixi Feng,
Qixi Feng
Xi’an Jiaotong University, Xi’an, China
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Quanke Feng,
Quanke Feng
Xi’an Jiaotong University, Xi’an, China
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Tianjiao Liang,
Tianjiao Liang
Chinese Academy of Sciences, Beijing, China
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Takeshi Kawai,
Takeshi Kawai
Xi’an Jiaotong University, Xi’an, China
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C.-K. Loong
C.-K. Loong
Tsinghua University, Beijing, China
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Qixi Feng
Xi’an Jiaotong University, Xi’an, China
Quanke Feng
Xi’an Jiaotong University, Xi’an, China
Bin Zhong
Tsinghua University, Beijing, China
Tianjiao Liang
Chinese Academy of Sciences, Beijing, China
Takeshi Kawai
Xi’an Jiaotong University, Xi’an, China
Jie Wei
Tsinghua University, Beijing, China
C.-K. Loong
Tsinghua University, Beijing, China
Paper No:
ICONE18-29492, pp. 171-173; 3 pages
Published Online:
April 8, 2011
Citation
Feng, Q, Feng, Q, Zhong, B, Liang, T, Kawai, T, Wei, J, & Loong, C. "Design of the Moderator and Cryogenic System for Generating Cold-Neutrons at the CPHS." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 3. Xi’an, China. May 17–21, 2010. pp. 171-173. ASME. https://doi.org/10.1115/ICONE18-29492
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