Author: Kirpitchev, I.
Paper Title Page
MOPC135 IFMIF-EVEDA RF Power System 394
 
  • D. Regidor, A. Arriaga, J.C. Calvo, A. Ibarra, I. Kirpitchev, J. Molla, P. Méndez, A. Salom, M. Weber
    CIEMAT, Madrid, Spain
  • M. Abs, B. Nactergal
    IBA, Louvain-la-Neuve, Belgium
  • P.-Y. Beauvais, M. Desmons, A. Mosnier
    CEA/DSM/IRFU, France
  • P. Cara
    Fusion for Energy, Garching, Germany
  • S.J. Ceballos, J. de la Cruz
    Greenpower Technologies, Sevilla, Spain
  • Z. Cvetkovic, Z. Golubicic, C. Mendez
    TTI, Santander, Spain
  • J.M. Forteza, J.M. González, C.R. Isnardi
    Indra Sistemas, San Fernando de Henares, Spain
  • D. Vandeplassche
    SCK-CEN, Mol, Belgium
 
  The IFMIF/EVEDA Accelerator Prototype will be a 9 MeV, 125 mA CW deuteron accelerator to validate the technical options for the IFMIF accelerator design. The Radiofrequency Quadrupole (RFQ), buncher cavities and Superconducting Radiofrequency Linac (SRF Linac) require continuous wave RF power at 175 MHz with an accuracy of ±1% in amplitude and ±1° in phase. Also the IFMIF/EVEDA RF Power System has to work under pulsed mode operation (during the accelerator commissioning). The IFMIF/EVEDA RF Power System is composed of 18 RF power generators feeding the eight RFQ couplers (200 kW), the two buncher cavities (105 kW) and the eight superconducting half wave resonators of the SRF Linac (105 kW). The main components of each RF power chain are the Low Level Radio Frequency system (LLRF), three amplification stages and a circulator with its load. For obvious standardization and scale economies reasons, the same topology has been chosen for the 18 RF power chains: all of them use the same main components which can be individually tuned to provide different RF output powers up to 200 kW. The studies and the current design of the IFMIF/EVEDA RF Power System are presented in this contribution.  
 
MOPC160 Digital LLRF for IFMIF-EVEDA 457
 
  • A. Salom, A. Arriaga, J.C. Calvo, I. Kirpitchev, P. Méndez, D. Regidor, M. Weber
    CIEMAT, Madrid, Spain
  • A. Mosnier
    CEA/IRFU, Gif-sur-Yvette, France
  • F. Pérez
    CELLS-ALBA Synchrotron, Cerdanyola del Vallès, Spain
 
  The IFMIF-EVEDA project aims to build a prototype accelerator (deuteron, 9MeV, 125mA) to be located at Rokkasho, Japan, for design validation of the IFMIF Accelerator. CIEMAT from Madrid, Spain, is in charge of providing the RF systems for this prototype accelerator. The LLRF will adjust the phase and amplitude of the RF drive and the resonance frequency of the cavities. This paper summarizes its main characteristics and Control System integrated in EPICS. The hardware is based on a commercial FPGA board, an analog front end and a local timing system. Each LLRF system will control and diagnose two RF chains and it will handle the RF fast Interlocks (vacuum, arcs, reflected power and multipacting). A specific LLRF will be developed for the special case of the RFQ cavity, with one Master LLRF and three Slave LLRFs to feed the 8 RF chains of the cavity. The conceptual design and other capabilities of the system like automatic conditioning, frequency tuning for startup and field flatness of the RFQ, etc, will be shown in this paper together with the first low power test results of the LLRF prototype and the performance of the Control System.