Digital spectrometer for prompt fission neutron spectrum measurements
Institute for Physics and Power Engineering, Obninsk, Russian Federation
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Published online: 13 September 2017
This paper presents a digital neutron spectrometer based on simultaneous digitizing of the signals from the fission chamber and a scintillation detector. The scintillation detector is based on stilbene crystal. The intrinsic detection efficiency of the used stilbene crystal and the energy dependence of the light output for the recoil protons were measured. It is shown, that the method allowed us to achieve time resolution of 1.5 ns and an good n/γ separation down to neutron energies of 400 keV.
© The Authors, published by EDP Sciences, 2017
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