Author: Gobin, R.
Paper Title Page
MOPEA032 Installation Status of Deuteron Injector of IFMIF Prototype Accelerator in Japan 148
  • H. Shidara, J. Knaster
    IFMIF/EVEDA, Rokkasho, Japan
  • D. Bogard, N. Chauvin, P. Girardot, R. Gobin, F. Harrault, D. Loiseau, P.A.P. Nghiem, A. Roger, F. Senée
    CEA/DSM/IRFU, France
  • L. Semeraro
    F4E, Barcelona, Spain
  The International Fusion Materials Irradiation Facility (IFMIF) will generate a neutron irradiation field with the spectrum simulating the fusion D-T neutrons (14 MeV) to qualify suitable materials for fusion power plants. The IFMIF accelerator facility provides two CW / 40 MeV / 125 mA deuteron beams to the IFMIF Lithium target facility. In the Engineering Validation and Engineering Design Activities phase, the concept of IFMIF is validated with a single CW / 9 MeV / 125 mA deuteron accelerator prototype under construction in JAEA/Rokkasho. The injector part has been designed, constructed and successfully tested by CEA/Saclay. The ECR ion source produces a deuteron beam of 140 mA at 100 keV. In spring 2013, the injector will be delivered and re-installed on the Rokkasho site. This paper will focus on the detailed plan of the injector’s re-assembly as well as on the re-commissioning. Further possible improvements are discussed in order to achieve reliable operation.  
THPWO003 Final Design of the IFMIF Injector at CEA/Saclay 3758
  • R. Gobin, D. Bogard, N. Chauvin, O. Delferrière, P. Girardot, F. Harrault, J.L. Jannin, D. Loiseau, C. Marolles, P. Mattei, A. Roger, F. Senée, O. Tuske
    CEA/DSM/IRFU, France
  • H. Shidara
    IFMIF/EVEDA, Rokkasho, Japan
  The IFMIF accelerator dedicated to high neutron flux production for material studies is now entering in a new phase. For this irradiation tool, IRFU institute from CEA/Saclay is in charge of the design, construction and characterization of the Injector. The high intensity deuteron beam is produced by an ECR source located on a 100 kV platform. The 2 m long LEBT, based on 2 solenoids, is ended by a cone installed at the entrance of the RFQ. Specific diagnostics (cameras, Allison type emittance scanner, fiberscope) have been installed for the beam characterization. During the last weeks, after Injector conditioning, more than 100 mA of deuteron beams have been characterized after the RFQ entrance cone in pulsed and continuous mode*. The shipment of the Injector towards the Rokkasho site in Japan (where it will be reinstalled) is foreseen at the beginning of 2013. This paper will focus on the final design used during the beam characterization experiments at Saclay.
* N. Chauvin et al. this conference
THPWO006 Beam Commissioning of the Linear IFMIF Prototype Accelerator Injector: Measurements and Simulations 3767
  • N. Chauvin, S. Chel, O. Delferrière, R. Gobin, P.A.P. Nghiem, F. Senée, M. Valette
    CEA/IRFU, Gif-sur-Yvette, France
  • A. Mosnier
    Fusion for Energy, Garching, Germany
  • Y. Okumura
    JAEA, Rokkasho, Japan
  • H. Shidara
    IFMIF/EVEDA, Rokkasho, Japan
  • D. Uriot
    CEA/DSM/IRFU, France
  The EVEDA (Engineering Validation and Engineering Design Activities) phase of the IFMIF (International Fusion Materials Irradiation Facility) project consists in building, testing and operating, in Japan, a 125 mA/9 MeV deuteron accelerator, called LIPAc, which has been developed in Europe. The 140 mA cw D+ beam that has to be delivered by the LIPAc injector is produced by a 2.45 GHz ECR ion source based on the SILHI design. The low energy beam transfer line (LEBT) relies on a dual solenoid focusing system to transport the beam and to match it into the RFQ*. The beam line is equipped by several diagnostics: intensity measurement, emittance measurement unit, profilers and beam proportion analysis. During the LIPAc injector beam commissioning performed in CEA-Saclay, the deuteron beam intensity transported at the end of the LEBT reached an unprecedented value of 140 mA at 100 keV. In this paper, the results obtained during the commissioning are presented. In particular, beam emittance measurements as a function of duty cycle, extracted current from the ion source and solenoid tunings are exposed. The experimental results are discussed and compared to beam dynamics simulations.
* R. Gobin et al., this conference