Author: Chirpaz-Cerbat, D.
Paper Title Page
MOPTS007 SARAF Equipped Cavity Test Stand (ECTS) at CEA 852
 
  • O. Piquet, C. Boulch, D. Chirpaz-Cerbat, G. Ferrand, F. Gohier, T.J. Joannem, G. Monnereau, Th. Plaisant
    CEA-IRFU, Gif-sur-Yvette, France
  • D. Braud, P. Carbonnier, P. Guiho, L. Maurice, J. Plouin, P. Sahuquet, N. Solenne
    CEA-DRF-IRFU, France
  • F. Gouit, A. Pérolat
    CEA, Gif-sur-Yvette, France
  
  CEA is committed to delivering a Medium Energy Beam Transfer line and a Super Conducting Linac (SCL) for SARAF accelerator in order to accelerate 5mA beam of either protons from 1.3MeV to 35MeV or deuterons from 2.6 MeV to 40.1MeV. The SCL consists in 4 cryomodules separated by warm section housing beam diagnostics. The two first identical cryomodules hosts respectively 6 and 7 half-wave resonator (HWR) low beta (0.091) cavities 176MHz. In order to test the cavity with its tuner and coupler and validate some design consideration, the Equipped Cavity Test Stand (ECTS) has been designed and will be presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-MOPTS007  
About • paper received ※ 07 May 2019       paper accepted ※ 20 May 2019       issue date ※ 21 June 2019  
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MOPTS008 ESS RFQ: Construction Status and Power Couplers Qualification 855
 
  • O. Piquet, A.C. Chauveau, D. Chirpaz-Cerbat, M. Desmons, A.C. France, P. Hamel, B. Pottin
    CEA-IRFU, Gif-sur-Yvette, France
  • A. Dubois, A. Gaget, Y. Le Noa, L. Napoly, M. Oublaid, G. Perreu
    CEA-DRF-IRFU, France
  
  The 352 MHz Radio Frequency Quadrupole (RFQ) for the European Spallation Source ERIC (ESS) will be de-livered during 2019. It is provided by CEA, IRFU, Sac-lay/France. It consists of five sections with a total length of 4.6 m and accelerates the proton beam from 75 keV up to 3.6 MeV. It will be feed with 1.6 MW peak power through two coaxial loop couplers. This paper will present the manufacturing status of the five sections and the qualification test of the RF power couplers.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-MOPTS008  
About • paper received ※ 07 May 2019       paper accepted ※ 21 May 2019       issue date ※ 21 June 2019  
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WEPRB010 RF Power Test of the Rebuncher for Saraf-Linac 2815
 
  • L. Zhao, R. Berthier, F. Gougnaud, P. Guiho, N. Solenne, D. Uriot, X.W. Zhu
    CEA-DRF-IRFU, France
  • R. Braud, D. Chirpaz-Cerbat, J. Dumas, R.D. Duperrier, F. Gohier, T.J. Joannem, S. Ladegaillerie, C. Marchand, O. Piquet
    CEA-IRFU, Gif-sur-Yvette, France
  • M. Di Giacomo, J.F. Leyge, M. Michel
    GANIL, Caen, France
  • B. Kaizer, L. Weissman
    Soreq NRC, Yavne, Israel
  
  Funding: SNRC
Three normal conducting rebunchers will be installed at the Medium Energy Beam Transport (MEBT) of the SARAF-LINAC phase II [saraf]. The MEBT line is designed to follow a 1.3 MeV/u RFQ, is about 5 m long, and contains three 176 MHz rebunchers providing a field integral of 105 kV. CEA is in charge of the design and fabrication of the Cu plated stainless steel, 3-gap rebuncher. The high power tests and RF conditioning have been successfully performed at the CEA Saclay on the first cavity. A solid state power amplifier, which has been developed by SNRC and has been used for the RF tests. The cavity has shown a good performance according to calculations, regarding the dissipated power, peak temperatures and coupling factor. RF conditioning was started with a duty cycle of 1\% and increased gradually until continuous wave (CW), which is the nominal working mode in SARAF-LINAC. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPRB010  
About • paper received ※ 09 May 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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WEPTS118 Results of CEA Tests of SARAF Couplers Prototypes 3382
 
  • G. Ferrand, Y. Baron, S. Bouaziz, D. Chirpaz-Cerbat, R. Cubizolles, F. Gohier, S. Ladegaillerie, A. Lotode, C. Madec, G. Monnereau, N. Pichoff, O. Piquet
    CEA-IRFU, Gif-sur-Yvette, France
  • C. Boulch, E. Fayette, P. Guiho, Y. Lussignol, C. Servouin
    CEA-DRF-IRFU, France
  
  CEA is committed to delivering a Medium Energy Beam Transfer line and a superconducting linac (SCL) for SARAF accelerator in order to accelerate 5 mA beam of either protons from 1.3 MeV to 35 MeV or deuterons from 2.6 MeV to 40 MeV. The SCL consists in 4 cryomodules. The first two cryomodules host 6 and 7 half-wave resonator (HWR) low beta cavities (β = 0.09) at 176 MHz. The last two identical cryomodule will host 7 HWR high-beta cavities (β = 0.18) at 176 MHz. The maximal required power to be transmitted to the beam is 11.4 kW for high-beta cavity couplers. This document presents the results of the coupler tests and conditioning.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2019-WEPTS118  
About • paper received ※ 23 April 2019       paper accepted ※ 22 May 2019       issue date ※ 21 June 2019  
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