JACoW logo

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.

Title An Upgrade for the 1.4 MeV/u Gas Stripper at the GSI UNILAC
  • P. Scharrer, W.A. Barthpresenter, Ch.E. Düllmann, J. Khuyagbaatar, A. Yakushev
    HIM, Mainz, Germany
  • W.A. Barthpresenter, M. Bevcic, Ch.E. Düllmann, L. Groening, K.P. Horn, E. Jäger, J. Khuyagbaatar, J. Krier, P. Scharrer, A. Yakushev
    GSI, Darmstadt, Germany
  • Ch.E. Düllmann
    Johannes Gutenberg University Mainz, Institut of Nuclear Chemistry, Mainz, Germany
  • P. Scharrer
    Mainz University, Mainz, Germany
Abstract The GSI UNILAC will serve as part of an injector system for the future FAIR facility, currently under construction in Darmstadt, Germany. For this, it has to deliver short-pulsed, high-current, heavy-ion beams with highest beam quality. An upgrade for the 1.4 MeV/u gas stripper is ongoing to increase the yield of uranium ions in the desired charge state. The new setup features a pulsed gas injection synchronized with the beam pulse transit to increase the effective density of the stripper target while keeping the gas load for the differential pumping system low. Systematic measurements of charge state distributions and energy-loss were conducted with 238U-ion beams and different stripper gases, including H2 and He. By using H2 as a stripper gas, the yield into the most populated charge state was increased by over 50%, compared to the current stripper. Furthermore, the high gas density, enabled by the pulsed injection, results in increased mean charge states.
Paper download TUPMR058.PDF [1.486 MB / 3 pages]
Export download ※ BibTeX LaTeXText/WordRISEndNote
Conference IPAC2016, Busan, Korea
Series International Particle Accelerator Conference (7th)
Proceedings Link to full IPAC2016 Proccedings
Session Poster Session
Date 10-May-16   16:00–18:00
Main Classification 04 Hadron Accelerators
Sub Classification T31 Ion Beam Stripping
Keywords target, ion, injection, dipole, heavy-ion
Publisher JACoW, Geneva, Switzerland
Editors Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-147-2
Published June 2016
Copyright © 2016 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0