Author: Busch, M.
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MOPOY019 Status of the First CH-Cavities for the New Superconducting CW Heavy Ion LINAC@GSI 886
SUPSS043   use link to see paper's listing under its alternate paper code  
 
  • M. Basten, M. Amberg, M. Busch, F.D. Dziuba, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • K. Aulenbacher, W.A. Barth, V. Gettmann, S. Mickat, M. Miski-Oglu
    HIM, Mainz, Germany
  • W.A. Barth, M. Heilmann, S. Mickat, S. Yaramyshev
    GSI, Darmstadt, Germany
  
  In the field of Super Heavy Elements (SHE) a superconducting (sc) continuous wave (cw) high intensity heavy ion LINAC is highly desirable. Currently a multi-stage R&D program conducted by GSI, HIM and IAP* is in progress. The baseline linac design composes a high performance ion source, a new low energy beam transport line, a (cw) upgraded High Charge State Injector (HLI), and a matching line (1.4 MeV/u) followed by the new sc-DTL LINAC for acceleration up to 7.3 MeV/u. The commissioning of the first CH cavity (Demonstrator), in a horizontal cryo module with beam is a major milestone in 2016**. The advanced demonstrator comprises constant-beta sc Crossbar-H-mode (CH) cavities operated at 217 MHz. Presently, the first two sc CH cavities of the advanced demonstrator are under construction at Research Instruments (RI), Bergisch Gladbach, Germany. A string of cavities and focusing elements build from several short CH-cavities with 8 gaps, without girders is recommended. The new design potentially reduces the overall technical risks during the fabrication and the pressure sensitivity through stiffening brackets. The present status of the first two sc cavities will be presented.
* W.Barth et al., Further R&D for a new Superconducting cw Heavy Ion LINAC@GSI, IPAC'14
**F.Dziuba et al., Measurements on the Superconducting 217 MHz CH Cavity during the Manufacturing Phase, SRF2015 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY019  
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MOPOY023 Further Steps Towards the Superconducting CW-LINAC for Heavy Ions at GSI 896
 
  • M. Schwarz, M. Basten, M. Busch, F.D. Dziuba, H. Podlech, U. Ratzinger, R. Tiede
    IAP, Frankfurt am Main, Germany
  • W.A. Barth, V. Gettmann, M. Heilmann, S. Mickat, M. Miski-Oglu, S. Yaramyshev
    GSI, Darmstadt, Germany
  • W.A. Barth, V. Gettmann, S. Mickat, M. Miski-Oglu
    HIM, Mainz, Germany
  
  Funding: Work supported by BMBF contr. No. 05P15RFRBA
For future experiments with heavy ions near the coulomb barrier within the super-heavy element (SHE) research project a multi-stage R&D program of GSI, HIM and IAP is currently in progress. It aims at developing a superconducting (sc) continuous wave (cw) LINAC with multiple CH cavities as key components downstream the upgraded High Charge Injector (HLI) at GSI. The LINAC design is challenging, due to the requirement of intense beams in cw-mode up to a mass-to-charge-ratio of 6 while covering a broad output energy range from 3.5 to 7.3 MeV/u with minimum energy spread. The next milestone will be a full performance beam test of the first expansion stage at GSI, the Demonstrator, comprising two solenoids and a 15-gap CH cavity inside a cryostat. 		 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY023  
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