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Investigating radioactive negative ion production via double electron capture

The relative cross sections for radioactive negative ion production via double electron capture have been measured for collisions between a 40 keV projectile beam of uranium-238 and potassium vapor. This was performed at the collinear resonance ionization spectroscopy (CRIS) experiment at CERN-ISOLD...

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Autores principales: Nichols, M, Athanasakis-Kaklamanakis, M, Borschevsky, A, Cocolios, T E, Crosa-Rossa, R, de Groote, R P, Flanagan, K T, Ruiz, R F Garcia, Geldhof, S, Hanstorp, D, Koszorús, Á, Lalanne, L, Leimbach, D, Neyens, G, Reilly, J, Rothe, S, Wilkins, S G, Yang, X F
Lenguaje:eng
Publicado: 2023
Acceso en línea:https://dx.doi.org/10.1016/j.nimb.2023.04.051
http://cds.cern.ch/record/2861087
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author Nichols, M
Athanasakis-Kaklamanakis, M
Borschevsky, A
Cocolios, T E
Crosa-Rossa, R
de Groote, R P
Flanagan, K T
Ruiz, R F Garcia
Geldhof, S
Hanstorp, D
Koszorús, Á
Lalanne, L
Leimbach, D
Neyens, G
Reilly, J
Rothe, S
Wilkins, S G
Yang, X F
author_facet Nichols, M
Athanasakis-Kaklamanakis, M
Borschevsky, A
Cocolios, T E
Crosa-Rossa, R
de Groote, R P
Flanagan, K T
Ruiz, R F Garcia
Geldhof, S
Hanstorp, D
Koszorús, Á
Lalanne, L
Leimbach, D
Neyens, G
Reilly, J
Rothe, S
Wilkins, S G
Yang, X F
author_sort Nichols, M
collection CERN
description The relative cross sections for radioactive negative ion production via double electron capture have been measured for collisions between a 40 keV projectile beam of uranium-238 and potassium vapor. This was performed at the collinear resonance ionization spectroscopy (CRIS) experiment at CERN-ISOLDE and is a step towards measuring the electron affinities (EAs) of elements that cannot be efficiently produced in negative ion sources at radioactive ion beam (RIB) facilities. This includes short-lived radioactive isotopes that have low production quantities and heavy and superheavy elements that systematically have smaller EAs than work functions of available ion source materials. Negative ions are particularly sensitive to electron–electron correlation effects, which make such studies ideal for benchmarking atomic structure models that go beyond the independent particle model. While the EAs of most light elements have been measured, experimental investigations on heavier elements, namely the actinides, remain scarce due to their radioactive nature and production difficulty. By developing negative ion production by charge exchange, we aim to make these studies feasible at RIB facilities.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
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spelling cern-28610872023-06-07T18:56:35Zdoi:10.1016/j.nimb.2023.04.051http://cds.cern.ch/record/2861087engNichols, MAthanasakis-Kaklamanakis, MBorschevsky, ACocolios, T ECrosa-Rossa, Rde Groote, R PFlanagan, K TRuiz, R F GarciaGeldhof, SHanstorp, DKoszorús, ÁLalanne, LLeimbach, DNeyens, GReilly, JRothe, SWilkins, S GYang, X FInvestigating radioactive negative ion production via double electron captureThe relative cross sections for radioactive negative ion production via double electron capture have been measured for collisions between a 40 keV projectile beam of uranium-238 and potassium vapor. This was performed at the collinear resonance ionization spectroscopy (CRIS) experiment at CERN-ISOLDE and is a step towards measuring the electron affinities (EAs) of elements that cannot be efficiently produced in negative ion sources at radioactive ion beam (RIB) facilities. This includes short-lived radioactive isotopes that have low production quantities and heavy and superheavy elements that systematically have smaller EAs than work functions of available ion source materials. Negative ions are particularly sensitive to electron–electron correlation effects, which make such studies ideal for benchmarking atomic structure models that go beyond the independent particle model. While the EAs of most light elements have been measured, experimental investigations on heavier elements, namely the actinides, remain scarce due to their radioactive nature and production difficulty. By developing negative ion production by charge exchange, we aim to make these studies feasible at RIB facilities.oai:cds.cern.ch:28610872023
spellingShingle Nichols, M
Athanasakis-Kaklamanakis, M
Borschevsky, A
Cocolios, T E
Crosa-Rossa, R
de Groote, R P
Flanagan, K T
Ruiz, R F Garcia
Geldhof, S
Hanstorp, D
Koszorús, Á
Lalanne, L
Leimbach, D
Neyens, G
Reilly, J
Rothe, S
Wilkins, S G
Yang, X F
Investigating radioactive negative ion production via double electron capture
title Investigating radioactive negative ion production via double electron capture
title_full Investigating radioactive negative ion production via double electron capture
title_fullStr Investigating radioactive negative ion production via double electron capture
title_full_unstemmed Investigating radioactive negative ion production via double electron capture
title_short Investigating radioactive negative ion production via double electron capture
title_sort investigating radioactive negative ion production via double electron capture
url https://dx.doi.org/10.1016/j.nimb.2023.04.051
http://cds.cern.ch/record/2861087
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