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Title: Measurement of the neutron capture cross section on argon

Abstract

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 σ 2200 = 673 ± 26 (stat.) ± 59 (sys.) mb.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
Contributing Org.:
ACED Collaboration
OSTI Identifier:
1595434
Alternate Identifier(s):
OSTI ID: 1523314
Grant/Contract Number:  
SC0009999; NA0003180
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 99; Journal Issue: 10; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Fischer, V., Pagani, L., Pickard, L., Couture, A., Gardiner, S., Grant, C., He, J., Johnson, T., Pantic, E., Prokop, C., Svoboda, R., Ullmann, J., and Wang, J. Measurement of the neutron capture cross section on argon. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.99.103021.
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. Measurement of the neutron capture cross section on argon. United States. doi:10.1103/PhysRevD.99.103021.
Fischer, V., Pagani, L., Pickard, L., Couture, A., Gardiner, S., Grant, C., He, J., Johnson, T., Pantic, E., Prokop, C., Svoboda, R., Ullmann, J., and Wang, J. Wed . "Measurement of the neutron capture cross section on argon". United States. doi:10.1103/PhysRevD.99.103021.
@article{osti_1595434,
title = {Measurement of the neutron capture cross section on argon},
author = {Fischer, V. and Pagani, L. and Pickard, L. and Couture, A. and Gardiner, S. and Grant, C. and He, J. and Johnson, T. and Pantic, E. and Prokop, C. and Svoboda, R. and Ullmann, J. and Wang, J.},
abstractNote = {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.},
doi = {10.1103/PhysRevD.99.103021},
journal = {Physical Review D},
number = 10,
volume = 99,
place = {United States},
year = {2019},
month = {5}
}

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