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 σ2200 = 673 ± 26 (stat.) ± 59 (sys.) mb.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of California, Davis, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- Contributing Org.:
- ACED Collaboration
- OSTI Identifier:
- 1595434
- Alternate Identifier(s):
- OSTI ID: 1523314; OSTI ID: 1770103
- Report Number(s):
- LA-UR-19-21041
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US2101346
- Grant/Contract Number:
- SC0009999; NA0003180; 89233218CNA000001
- 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; neutron capture argon thermal; nuclear reactions; CP violation; dark matter detectors; neutrino detectors
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. https://doi.org/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. https://doi.org/10.1103/PhysRevD.99.103021. https://www.osti.gov/servlets/purl/1595434.
@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 = {Wed May 29 00:00:00 EDT 2019},
month = {Wed May 29 00:00:00 EDT 2019}
}
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