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Design of back-streaming white neutron beam line at CSNS
Zhang LY(张利英); Jing HT(敬罕涛); Tang JY(唐靖宇); Li Q(李强); Ning CJ(宁常军); Yu YJ(于永积); Tan ZX(谭志新); Wang PC(王鹏程); He YC(何泳成); Zhang, LY; Jing, HT; Tang, JY; Li, Q; Ruan, XC; Ren, J; Ning, CJ; Yu, YJ; Tan, ZX; Wang, PC; He, YC; Wang, XQ
AbstractA white neutron beam line using back-streaming neutrons from the spallation target is under construction at China Spallation Neutron Source (CSNS). Different spectrometers, to be installed in the so-called Back-n beam line for nuclear data measurements, are also being developed in phases. The physical design of the beam line is carried out with the help of a complicated collimation system and a sophisticated neutron dump, taking the overview of the neutron beam characteristics into account. This includes energy spectrum, flux and time structure, the optimizations of neutron beam spots and in-hall background. The wide neutron energy range of 1 eV-100 MeV is excellent for supporting different applications, especially nuclear data measurements. At Endstation#2, which is about 80 m away from the target, the main properties of the beam line include neutron flux of 106 n/cm(2)/s, time resolution of a few per mille over nearly the entire energy range, and in-hall background of about 0.01/cm(2)/s for both neutron and gamma. With its first commission in late 2017, Back-n will not only be the first high-performance white neutron source in China, but also one of the best white neutron sources in the world.
KeywordBack-streaming white neutrons Time-of-flight (TOP) method Neutron characteristics Neutron beam collimation Neutron and gamma background
Indexed BySCI ; EI
WOS Research AreaChemistry ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging
WOS SubjectChemistry, Inorganic & Nuclear ; Nuclear Science & Technology ; Radiology, Nuclear Medicine & Medical Imaging
WOS IDWOS:000423642800034
EI Accession Number20174804476150
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorJing HT(敬罕涛)
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Zhang LY,Jing HT,Tang JY,et al. Design of back-streaming white neutron beam line at CSNS[J]. APPLIED RADIATION AND ISOTOPES,2018,132:212-221.
APA 张利英.,敬罕涛.,唐靖宇.,李强.,宁常军.,...&Wang, XQ.(2018).Design of back-streaming white neutron beam line at CSNS.APPLIED RADIATION AND ISOTOPES,132,212-221.
MLA 张利英,et al."Design of back-streaming white neutron beam line at CSNS".APPLIED RADIATION AND ISOTOPES 132(2018):212-221.
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