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Gamma sensitivity of single-crystal CVD diamond neutron detectors

MetadataDetails
Publication Date2016-03-01
JournalInorganic Materials
AuthorsK. N. Zyablyuk, V.A. Kolyubin, V. N. Pashentsev, P. G. Nedosekin, E. M. Tyurin
InstitutionsLomonosov Moscow State University, National Research Nuclear University MEPhI
Citations4

We have studied the gamma sensitivity of single-crystal CVD diamond neutron detectors using a 252Cf neutron source placed in a moderator. It has been shown that a major contribution to the count rate of the detectors is made by the gamma rays from the source. We have compared the count rates of a detector with a 10B boron isotope-based slow-neutron converter and without it. With allowance for the theoretically calculated detection efficiency, the difference between the count rates is consistent with the fraction of slow neutrons measured using a scintillation detector.