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Optimization of the Stockholm R-EBIT for the production and extraction of highly charged ions
Stockholms universitet, Fysikum. (Fysikum)
Stockholms universitet, Fysikum.
Stockholms universitet, Fysikum.
Stockholms universitet, Fysikum.
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2010 (English)In: Journal of Instrumentation, ISSN 1748-0221, Vol. 5, no C11003Article in journal (Refereed) Published
Abstract [en]

We describe a refrigerated EBIT (R-EBIT) commissioned at the AlbaNova Research Center at Stockholm University. As an innovative solution, the superconducting magnet and the trapping drift tubes of the R-EBIT are cooled to a temperature of 4 K by a set of two cooling heads connected to helium compressors. This dry, i.e. liquid helium and liquid nitrogen free, system is easily operated and creates highly charged ions at a fraction of the cost of traditional liquid-cooled systems. A pulsed and continuous gas injection system was developed to feed neutral particles into the electron beam in the trap region. This improves significantly the highly charged ion production and R-EBIT performance. Fast extraction of ions from the R-EBIT yields very short ( < 100 ns), charge-separated ion bunches which can be either analysed using a straight time-of-flight section or sent to experimental beam lines following selection in a bending magnet. An emittance meter was used to measure the emittance of the ions extracted from the R-EBIT. The extracted ions were also re-trapped in a cylindrical Penning trap and properties of the re-trapped ions have been measured using the emittance meter. Results of these measurements are reported in this publication.

Place, publisher, year, edition, pages
2010. Vol. 5, no C11003
National Category
Atom and Molecular Physics and Optics
Research subject
URN: urn:nbn:se:uu:diva-218619DOI: 10.1088/1748-0221/5/11/C11003OAI: oai:DiVA.org:uu-218619DiVA: diva2:696369
Available from: 2011-05-19 Created: 2014-02-13 Last updated: 2014-02-13Bibliographically approved

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Hobein, MatthiasOrban, IstvanBöhm, StefanieSolders, AndreasTashenov, StanislavSchuch, Reinhold
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Journal of Instrumentation
Atom and Molecular Physics and Optics

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