CHANG Le, LIU Longxiang, WANG Hongwei, et al. Double pulse waveform spectrum of EJ339A capture-gated neutron detector[J]. Nuclear techniques, 2015, 38(5): 050403
CHANG Le, LIU Longxiang, WANG Hongwei, et al. Double pulse waveform spectrum of EJ339A capture-gated neutron detector[J]. Nuclear techniques, 2015, 38(5): 050403 DOI: 10.11889/j.0253-3219.2015.hjs.38.050403.
Background: Capture-gated neutron detector has been doped by the higher thermal cross section elements
such as 6Li
10B or natGd
for a fast neutron incident detector signal with n-p recoil impulse and pulse neutron capture associated characteristics. Purpose: The aim is to study the double pulse waveform spectra and to analyze the n-p recoil impulse of the EJ339A capture-gated neutron detector. Methods: Through the analysis of energy spectra and the double pulse waveform spectra
the characteristics of EJ339A capture-gated detector are studied. Results: Capture-gated detector from the energy spectra and PSD spectra measurement is effective for neutron and gamma ray. The wave of digital technology could well analyze the n-p recoil impulse and give the τ value of the EJ339A in the experiment. Conclusion: EJ339A really has captured-gated detector characteristics
pulse neutron capture and n-p associated characteristics of recoil impulse. The capture time of EJ339A is 0.44 μs
which is consistent with the theoretical calculation results. Abstract