Late Prompt Fission Gamma Rays from 235U(n,f) and 252Cf(sf)
1 Los Alamos National Laboratory, Los Alamos, NM 87545, USA
2 University of Massachusetts Lowell, Lowell, MA 01854, USA
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Published online: 28 September 2020
Two measurements of fission γ rays were performed with the DANCE and NEUANCE arrays using the reactions 235 U(n, f) and 252 Cf(sf). Utilizing the fast time response of the detectors and a method for estimating the accidental background, we obtained the energy spectrum of the late prompt fission γ rays as a function of the time since fission. The experimental results are compared with predictions of the code CGMF folded with GEANT4 simulations of the detector response.
© The Authors, published by EDP Sciences, 2020
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