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A very low energy compact electron beam ion trap for spectroscopic research in Shanghai
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2012 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 83, no 1, 013303- p.Article in journal (Refereed) Published
Abstract [en]

In this paper, a new compact low energy electron beam ion trap, SH-PermEBIT, is reported. This electron beam ion trap (EBIT) can operate in the electron energy range of 60-5000 eV, with a current density of up to 100 A/cm(2). The low energy limit of this machine sets the record among the reported works so far. The magnetic field in the central drift tube region of this EBIT is around 0.5 T, produced by permanent magnets and soft iron. The design of this EBIT allows adjustment of the electron gun's axial position in the fringe field of the central magnetic field. This turned out to be very important for optimizing the magnetic field in the region of the electron gun and particularly important for low electron beam energy operation, since the magnetic field strength is not tunable with permanent magnets. In this work, transmission of the electron beam as well as the upper limit of the electron beam width under several conditions are measured. Spectral results from test operation of this EBIT at the electron energies of 60, 315, 2800, and 4100 eV are also reported.

Place, publisher, year, edition, pages
2012. Vol. 83, no 1, 013303- p.
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-76766DOI: 10.1063/1.3675575ISI: 000300594900020OAI: diva2:527123
9Available from: 2012-05-16 Created: 2012-05-16 Last updated: 2012-05-16Bibliographically approved

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Liljeby, Leif
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The Manne Siegbahn Laboratory
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