Journal
JOURNAL OF INSTRUMENTATION
Volume 13, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/13/07/P07020
Keywords
Instrumentation and methods for heavy-ion reactions and fission studies; Accelerator Applications
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Funding
- National Natural Science Foundation of China [11675155]
- National Key Research and Development Plan [2016YFA0401603]
- Neutron Physics Key Laboratory Foundation [2015BC02]
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Aiming at measuring the fission cross sections of various actinides in a wide neutron energy range at the newly built China Spallation Neutron Source (CSNS)- White Neutron Source (WNS), a dedicated multi-layered fast fission ionization chamber prototype was constructed. The physical design of the prototype and the front-end electronics which are optimized to the features of CSNS are here described. The performance of the prototype with uranium targets at a D-T neutron source is presented, focusing in particular on the good ability in fission fragment discrimination, high detection efficiency of 95.5% and time resolution of 20.3 ns.
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