Journal Article

GSI-2022-00133

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Separation of atomic and molecular ions by ion mobility with an RF carpet

Miskun, I. ; Dickel, T.GSI* ; San Andrés, S. A.GSI* ; Bergmann, J. ; Constantin, P. ; Ebert, J. ; Geissel, H.GSI* ; Greiner, F. ; Haettner, E.GSI* ; Hornung, C. ; Lippert, W. ; Mardor, I. ; Moore, I. ; Plaß, W. R.GSI* ; Purushothaman, S.GSI* ; Rink, A.-K. ; Reiter, M. P. ; Scheidenberger, C.GSI* ; Weick, H.GSI*

2021
Elsevier Science [S.l.]

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Please use a persistent id in citations: doi:10.1016/j.ijms.2020.116450  doi:10.15120/GSI-2022-00133

Report No.: arXiv:2007.14467

Abstract: Gas-filled stopping cells are used at accelerator laboratories for the thermalization of high-energy radioactive ion beams. Common challenges of many stopping cells are a high molecular background of extracted ions and limitations of extraction efficiency due to space-charge effects. At the FRS Ion Catcher at GSI, a new technique for removal of ionized molecules prior to their extraction out of the stopping cell has been developed. This technique utilizes the RF carpet for the separation of atomic ions from molecular contaminant ions through their difference in ion mobility. Results from the successful implementation and test during an experiment with a 600 MeV/u 124 Xe primary beam are presented. Suppression of molecular contaminants by three orders of magnitude has been demonstrated. Essentially background-free measurement conditions with less than

Keyword(s): Ion mobility ; Gas cell ; Beam purification ; Molecular contamination ; Low-energy RIB ; Space charge

Note: This work was supported by the German Federal Ministry for Education and Research (BMBF) under contracts no. 05P16RGFN1 and 05P19RGFN1. PC is supported by ELI-NPPhase II (1/July 07, 2016, COP, ID 1334). "This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)"

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Contributing Institute(s):

1. FRS / SFRS Experimente (FRS)
2. SuperFRS Experiment Collaboration (SuperFRS-EC@FAIR)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. SUC-GSI-Giessen - Strategic university cooperation GSI-U Gießen (SUC-GSI-GI) (SUC-GSI-GI)
3. HGS-HIRe - HGS-HIRe for FAIR (HGS-HIRe) (HGS-HIRe)
4. HIC4FAIR - HIC for FAIR - Helmholtz International Center for FAIR - Data Analysis, Theory and Simulations (LandHessen-LOEWE-HIC4FAIR) (LandHessen-LOEWE-HIC4FAIR)

Experiment(s):

1. Experiment at GSI without experiment proposal number ( - ; Facility_outside_beam_time_program )

Appears in the scientific report 2021

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Physical Object Dickel, T. (Corresponding author)GSI* ; Plaß, W.GSI*
FRS Ion Catcher
Darmstadt : GSI (2024) [10.15120/GSI-2024-00534]2024   Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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