Measurement of the neutron capture cross section on argon

Fischer, V.; Pagani, L.; Pickard, L.; Couture, A.; Gardiner, S.; Grant, C.; He, J.; Johnson, T.; Pantic, E.; Prokop, C.; Svoboda, R.; Ullmann, J.; Wang, J.

doi:10.1103/PhysRevD.99.103021

Title: Measurement of the neutron capture cross section on argon

Journal Article · Wed May 29 00:00:00 EDT 2019 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.99.103021· OSTI ID:1595434

Fischer, V.; Pagani, L.; Pickard, L.; Couture, A.; Gardiner, S.; Grant, C.; He, J.; Johnson, T.; Pantic, E.; Prokop, C.; Svoboda, R.; Ullmann, J.; Wang, J.

The use of argon as a detection and shielding medium for neutrino and dark matter experiments has made a precise knowledge of the cross section for neutron capture on argon an important design and operational parameter. While previous measurements were averaged over thermal spectra and have significant disagreements, a differential measurement has been performed using a Time-Of-Flight neutron beam and a ~4π gamma spectrometer. Here, a fit to the differential cross section from 0.015-0.15 eV, assuming a 1/v energy dependence, yields σ²²⁰⁰ = 673 ± 26 (stat.) ± 59 (sys.) mb.

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Research Organization:: Univ. of California, Davis, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Contributing Organization:: ACED Collaboration

Grant/Contract Number:: SC0009999; NA0003180; 89233218CNA000001

OSTI ID:: 1595434

Alternate ID(s):: OSTI ID: 1523314; OSTI ID: 1770103

Report Number(s):: LA-UR-19-21041; PRVDAQ; TRN: US2101346

Journal Information:: Physical Review D, Vol. 99, Issue 10; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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