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Feasibility of nuclide-identified imaging based on the back-streaming white neutron beam at the China Spallation Neutron Source
Review of Scientific Instruments ( IF 1.6 ) Pub Date : 2021-05-10 , DOI: 10.1063/5.0040767 Binbin Tian 1 , Hantao Jing 2 , Sheng Wang 1 , Qiang Li 2 , Xiaolong Gao 2 , Xiaoyun Yang 2
Review of Scientific Instruments ( IF 1.6 ) Pub Date : 2021-05-10 , DOI: 10.1063/5.0040767 Binbin Tian 1 , Hantao Jing 2 , Sheng Wang 1 , Qiang Li 2 , Xiaolong Gao 2 , Xiaoyun Yang 2
Affiliation
Back-streaming neutrons through the incoming proton channel at the spallation target station of the China Spallation Neutron Source have been studied as a white neutron source (Back-n). We report a physical study on white neutron imaging based on the Back-n beamline. The wide neutron energy spectrum spanning from 1 eV to 100 MeV was very suitable for nuclide-identified imaging as well as measurements of nuclear data and other applications. We calculated the back-streaming white neutron energy spectrum using the Monte Carlo N-Particle code. A comparison of the results of calculation with those of the FLUktuierende KAskade code and experimental measurements were carried out. The energy resolution of the Back-n beam was close to 5% depending on the neutron energy and the modes of operation, and its spatial resolution could attain the order of tens of micrometers.
更新日期：2021-05-28
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