Contribution to a book

GSI-2019-00528

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Development of Pulsed Gas Strippers for Intense Beams of Heavy and Intermediate Mass Ions

Gerhard, P.GSI* ; Barth, W.GSI* ; Bevcic, M.GSI* ; Düllmann, C.GSI* ; Groening, L.GSI* ; Horn, K.-P.GSI* ; Jäger, E.GSI* ; Khuyagbaatar, J.GSI* ; Krier, J.GSI* ; Maier, M.GSI* ; Scharrer, P.GSI* ; Yakushev, A.GSI*

2019
JACoW Publishing Geneva
ISBN: 978-3-95450-194-6

Please use a persistent id in citations: doi:10.18429/JACOW-LINAC2018-FR1A05  doi:10.15120/GSI-2019-00528

Abstract: The GSI UNILAC together with SIS18 will serve as injector for the future FAIR. A modified 1.4~MeV/u gas stripper setup has been developed, aiming at an increased yield into the particular desired charge state. The setup delivers short pulses of high gas density in synchronization with the beam pulse. This provides a higher gas density. Different gases as stripping targets were tested. Measurements with various isotopes and gas densities were conducted to investigate the stripping properties. High intensity beams of ²³⁸U⁴⁺ were successfully stripped using hydrogen as stripping gas. The stripping efficiency was significantly increased while the beam quality remained suitable. The new stripper setup and major results achieved during the development are presented. Problems with the fast valves arose while they were used for a longer duration. Another revision of the setup took place to exchange the valves. In parallel, the installation of the required infrastructure for regular operation of the gas stripper using hydrogen was planned.

Keyword(s): Linearbeschleuniger

Note: ccby3

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Contributing Institute(s):

1. UNILAC Post Stripper Upgrade (PSU)
2. Vacuum Systems (VAC)
3. HI Mainz (HIM)
4. Transport & Installation (TRI)
5. SHE Chemie (SHC)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)

Experiment(s):

1. (Facility Altdaten therefore no facility)

Appears in the scientific report 2019

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