Demonstration of the neutron tracking capability of NEXT array in time-of-flight measurements to improve energy resolution

Neupane, S.; Heideman, J.; Grzywacz, Robert Kazimierz; Cooper, M.; Hooker, J.; Jones, K. L.; King, Toby T.; Kitamura, N.; Madurga, M.; Siegl, K.; Thornsberry, C. R.; Wagenknecht, P.; Xu, Z. Y.; Heilbronn, L. H.; Rajabali, M. M.; Chester, A.; Richard, A.; Alberty-Jones, Y.; Derkin, J.; Massey, T. N.; Soltesz, D.; Brewer, Nathan T.; Rasco, B. Charlie; Rykaczewski, Krzysztof P.; Wolinska-Cichocka, M.; Clark, J.; Santiago-Gonzales, D.; Savard, G.

doi:10.1103/physrevc.106.044320

Title: Demonstration of the neutron tracking capability of NEXT array in time-of-flight measurements to improve energy resolution

Journal Article · 19 October 2022 · Physical Review. C

DOI: https://doi.org/10.1103/physrevc.106.044320 · OSTI ID:1895220

^[1]; Heideman, J. ^[2];

^[3]; Cooper, M. ^[1]; Hooker, J. ^[1]; Jones, K. L. ^[1];

^[3]; Kitamura, N. ^[1]; Madurga, M. ^[1]; Siegl, K. ^[1]; Thornsberry, C. R. ^[1]; Wagenknecht, P. ^[1]; Xu, Z. Y. ^[1]; Heilbronn, L. H. ^[1]; Rajabali, M. M. ^[4]; Chester, A. ^[5]; Richard, A. ^[6]; Alberty-Jones, Y. ^[7]; Derkin, J. ^[7]; Massey, T. N. ^[7] more »

Univ. of Tennessee, Knoxville, TN (United States)
Univ. of Tennessee, Knoxville, TN (United States); Applied Research Associates Inc., Raleigh, NC (United States)
Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Tennessee Technological Univ., Cookeville, TN (United States)
Michigan State Univ., East Lansing, MI (United States)
Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Ohio Univ., Athens, OH (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Warsaw (Poland)
Argonne National Lab. (ANL), Argonne, IL (United States)

Precise neutron-energy measurements are required to probe the nuclear structure effects of neutron-rich nuclei, where β-delayed neutron emission becomes a dominant decay mode. The Neutron dEtector with Xn Tracking (NEXT) array has been designed and constructed to measure β-delayed neutrons with better energy resolution. The new design localizes the neutron interaction position by optically segmenting the detector along the direction of the neutron flight path, reducing the associated uncertainties in the neutron time-of-flight measurements. This significantly improves the energy resolution without losing the necessary detection efficiency. The proof-of-principle and efficiency measurements showed promising results. Herein, this article details the implementation of the neutron tracking capability of NEXT array in time-of-flight measurements.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-06CH11357; AC05-00OR22725; NA0002934; NA0003899; SC0016988

OSTI ID:: 1895220

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 4 Vol. 106; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (13)

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