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Production of highly charged ions inside a cryogenic Penning trap by electron-impact ionisation

We have built and operated a cryogenic Penning trap arrangement that allows for the efficient production, selection, and long-term storage of highly charged atomic ions. In close similarity to an electron-beam ion trap it works by electron-impact ionisation of atoms inside a dedicated confinement re...

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Bibliographic Details
Main Authors: Kanika (Author) , Krishnan, Arya (Author) , Klimes, Jeffrey W. (Author) , Reich, Bianca (Author) , Anjum, K. K. (Author) , Baus, P. (Author) , Birkl, G. (Author) , Quint, Wolfgang (Author) , Vogel, Manuel (Author)
Format: Article (Journal)
Language:English
Published: 11 August 2023
In: Journal of physics. B, Atomic, molecular and optical physics
Year: 2023, Volume: 56, Issue: 17, Pages: 1-10
ISSN:1361-6455
DOI:10.1088/1361-6455/ace9a1
Online Access:Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1088/1361-6455/ace9a1
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Author Notes:Kanika, A. Krishnan, J.W. Klimes, B. Reich, K.K. Anjum, P. Baus, G. Birkl, W. Quint and M. Vogel
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Summary:We have built and operated a cryogenic Penning trap arrangement that allows for the efficient production, selection, and long-term storage of highly charged atomic ions. In close similarity to an electron-beam ion trap it works by electron-impact ionisation of atoms inside a dedicated confinement region. The electrons are produced by field emission at liquid-helium temperature and are subsequently accelerated to the keV energy range. The electron beam is reflected through the trap multiple times to increase the ionisation efficiency. We show a characterisation of the system and measurements with argon and tungsten ions up to Ar16+ and W27+, respectively.
Item Description:Gesehen am 02.11.2023
Physical Description:Online Resource
ISSN:1361-6455
DOI:10.1088/1361-6455/ace9a1

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