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Kudryavtsev, V.A. orcid.org/0000-0002-7018-5827, Zakhary, P. and Easeman, B. (2020) Neutron production in (α,n) reactions. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 972. 164095. ISSN 0168-9002
Abstract
Neutrons can induce background events in underground experiments looking for rare processes. Neutrons in a MeV range are produced in radioactive decays via spontaneous fission and () reactions, and by cosmic rays. Neutron fluxes from radioactivity dominate at large depths ( km w. e.). A number of computer codes are available to calculate cross-sections of () reactions, excitation functions and neutron yields. We have used EMPIRE2.19/3.2.3 and TALYS1.9 to calculate neutron production cross-sections and branching ratios for transitions to the ground and excited states, and modified SOURCES4A to evaluate neutron yields and spectra in different materials relevant to high-sensitivity underground experiments. We report here a comparison of different models and codes with experimental data, to estimate the accuracy of these calculations.
Metadata
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Copyright, Publisher and Additional Information: | © 2020 Elsevier. This is an author produced version of a paper subsequently published in Nuclear Instruments and Methods in Physics Research Section A. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). | ||||
Keywords: | Radioactivity; Neutron production; (α, n) reactions; Underground experiments; Neutron background | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||
Funding Information: |
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 26 Jun 2020 07:09 | ||||
Last Modified: | 03 Nov 2022 17:12 | ||||
Status: | Published | ||||
Publisher: | Elsevier | ||||
Refereed: | Yes | ||||
Identification Number: | https://doi.org/10.1016/j.nima.2020.164095 | ||||
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Neutron production in (alpha, n) reactions. (deposited 03 Nov 2022 17:11)
- Neutron production in (α,n) reactions. (deposited 26 Jun 2020 07:09) [Currently Displayed]