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ELSEVIER
DOI: 10.1016/j.nima.2021.165806
Keywords
beta-delayed neutron decay; Simulations; Recoil-ion spectroscopy; Paul trap
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Funding
- Louisiana State Board of Regents Research Competitiveness Subprogram, United States [LEQSF(2016-19)-RD-A-09]
- National Nuclear Security Administration, United States [DE-NA0000979, DE-AC52-07NA27344]
- United States Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC02-06CH11357]
- NSF, United States [PHY-1419765]
- National Science Foundation, United States [PHY-1713857]
- JINA-CEE NSF Physics Frontier Center, United States [PHY-1430152]
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This paper explores a new method for deducing neutron emission based on the time-of-flight measurement of recoiling ions, which overcomes the limitations of traditional methods that require neutron detection, and is crucial for extracting neutron energy accurately.
Beta-delayed one-neutron (beta n) emission has been investigated by confining radioactive ions in an ion trap and detecting the beta particles and recoiling nuclei that emerge following decay. In this approach, the beta n energy spectrum and branching ratio can be deduced without needing to detect the neutrons, as the neutron emission is inferred from the observed time of flight of the recoiling ions. This paper details the dominant effects that influence the extraction of the neutron energy from the time-of-flight measurement and explores the impact they have on the energy calibration and resolution.
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