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Space-charge effects in Penning ion traps
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SYSNO ASEP 0443892 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Space-charge effects in Penning ion traps Author(s) Porobic, T. (BE)
Beck, M. (DE)
Breitenfeldt, M. (BE)
Couratin, C. (FR)
Finlay, P. (BE)
Knecht, A. (BE)
Fabian, X. (FR)
Friedag, P. (DE)
Flechard, X. (FR)
Lienard, E. (FR)
Ban, G. (FR)
Zákoucký, Dalibor (UJF-V) RID, SAI, ORCID
Soti, G. (BE)
Van Gorp, S. (BE)
Weinheimer, C. (DE)
Wursten, E. (BE)
Severijns, N. (BE)Number of authors 17 Source Title Nuclear Instruments & Methods in Physics Research Section A. - : Elsevier - ISSN 0168-9002
Roč. 785, JUN (2015), s. 153-162Number of pages 10 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords Penning trap ; space-charge ; magnetron motion ; ion trapping ; buffer gas cooling ; ion cyclotron resonance Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects LA08015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LG13031 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UJF-V - RVO:61389005 UT WOS 000352815400024 EID SCOPUS 84925610170 DOI 10.1016/j.nima.2015.02.057 Annotation The influence of space-charge on ion cyclotron resonances and magnetron eigenfrequency in a gas-filled Penning ion trap has been investigated. Off-line measurements with K-39(+) using the cooling trap of the WITCH retardation spectrometer-based setup at ISOLDE/CERN were performed. Experimental ion cyclotron resonances were compared with ab initio Coulomb simulations and found to be in agreement. As an important systematic effect of the WITCH experiment, the magnetron eigenfrequency of the ion cloud was studied under increasing space-charge conditions. Finally, the helium buffer gas pressure in the Penning trap was determined by comparing experimental cooling rates with simulations. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2016
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