Detection system for neutron β decay correlations in the UCNB and Nab experiments
- Creators
- Broussard, L. J.
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Hickerson, K. P.
Abstract
We describe a detection system designed for precise measurements of angular correlations in neutron β decay. The system is based on thick, large area, highly segmented silicon detectors developed in collaboration with Micron Semiconductor, Ltd. The prototype system meets specifications for β electron detection with energy thresholds below 10 keV, energy resolution of ∼3 keV FWHM, and rise time of ∼50 ns with 19 of the 127 detector pixels instrumented. Using ultracold neutrons at the Los Alamos Neutron Science Center, we have demonstrated the coincident detection of β particles and recoil protons from neutron β decay. The fully instrumented detection system will be implemented in the UCNB and Nab experiments to determine the neutron β decay parameters B, a, and b.
Additional Information
© 2016 Elsevier B.V. Received 9 July 2016, Revised 13 December 2016, Accepted 15 December 2016, Available online 19 December 2016. This paper has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this paper, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). We thank our UCNA collaborators from the California Institute of Technology for their contribution of the SCS magnetic spectrometer. This work was supported by the LDRD program of Los Alamos National Laboratory [project number 20110043DR], the National Science Foundation [contract number NSF PHY-1205833, 1307426], and the U.S. Department of Energy, Office of Science, Office of Nuclear Physics [contract numbers DE-AC52-06NA25396 under proposal 2017LANLEEDM, DE-AC05-00OR22725, DE-FG02-03ER41258, DE-FG02-97ER41042, DE-SC000-8107, DE-SC0014622] and the Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internships Program (SULI).Attached Files
Submitted - 1607.02656.pdf
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Additional details
- Eprint ID
- 76614
- Resolver ID
- CaltechAUTHORS:20170417-141701252
- DE-AC05-00OR22725
- Department of Energy (DOE)
- 20110043DR
- Los Alamos National Laboratory
- PHY-1205833
- NSF
- PHY-1307426
- NSF
- DE-AC52-06NA25396
- Department of Energy (DOE)
- 2017LANLEEDM
- Department of Energy (DOE)
- DE-AC05-00OR22725
- Department of Energy (DOE)
- DE-FG02-03ER41258
- Department of Energy (DOE)
- DE-FG02-97ER41042
- Department of Energy (DOE)
- DE-SC000-8107
- Department of Energy (DOE)
- DE-SC0014622
- Department of Energy (DOE)
- Created
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2017-04-17Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field