Author: Schreiber, G.
Paper Title Page
TUXB2 Upgrade of the Unilac for Fair 1281
 
  • L. Groening, A. Adonin, R. M. Brodhage, X. Du, R. Hollinger, O.K. Kester, S. Mickat, A. Orzhekhovskaya, B. Schlitt, G. Schreiber, H. Vormann, C. Xiao
    GSI, Darmstadt, Germany
  • H. Hähnel, U. Ratzinger, A. Seibel, R. Tiede
    IAP, Frankfurt am Main, Germany
 
  The UNIversal Linear Accelerator (UNILAC) at GSI serves as injector for all ion species from protons to uranium since four decades. Its 108 MHz Alvarez type DTL providing acceleration from 1.4 MeV/u to 11.4 MeV/u has suffered from material fatigue. The DTL will be replaced by a completely new section with almost same design parameters, i.e. pulsed current of up to 15 mA of 238U28+ at 11.4 MeV/u. A dedicated terminal & LEBT for operation with 238U4+ is currently constructed. The uranium sources need to be upgraded in order to provide increased beam brilliances and for operation at 3 Hz. In parallel a 70 MeV / 70 mA proton linac based on H-mode cavities is under design and construction. This contribution will also give a brief summary of the overall status of the FAIR project.  
slides icon Slides TUXB2 [4.634 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUXB2  
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WEPMA022 Progress of the Klystron and Cavity Test Stand for the FAIR Proton Linac 2802
 
  • A. Schnase, E. Plechov, J. Salvatore, G. Schreiber, W. Vinzenz
    GSI, Darmstadt, Germany
  • C. Joly, J. Lesrel
    IPN, Orsay, France
 
  In collaboration between the FAIR project, GSI, and CNRS, the IPNO lab provided the high power RF components for a cavity and klystron test stand. For initial operation of the 3 MW Thales TH2181 klystron at 325.224 MHz we received a high voltage modulator from CERN Linac 4 as a loan. Here we report, how we integrated the combination of klystron, high voltage modulator, and auxiliaries to accumulate operating experience. RF operation of the klystron started on a water cooled load, soon the circulator will be included and then the prototype CH cavity in the radiation shielded area will be powered. The 45 kW amplifiers for the 3 buncher structures of the FAIR proton Linac were checked at the test stand, and the results are presented here.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEPMA022  
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