Author: Drury, M.A.
Paper Title Page
WEPPC092 12 GeV Upgrade Project - Cryomodule Production 2429
 
  • J. Hogan, A. Burrill, G.K. Davis, M.A. Drury, M. Wiseman
    JLAB, Newport News, Virginia, USA
 
  Funding: This manuscript has been authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177.
The Thomas Jefferson National Accelerator Facility (Jefferson Lab) is producing ten 100+MV SRF cryomodules (C100) as part of the CEBAF 12 GeV Upgrade Project. Once installed, these cryomodules will become part of an integrated accelerator system upgrade that will result in doubling the energy of the CEBAF machine from 6 to 12 GeV. This paper will present a complete overview of the C100 cryomodule production process. The C100 cryomodule was designed to have the major components procured from private industry and assembled together at Jefferson Lab. In addition to measuring the integrated component performance, the performance of the individual components is verified prior to being released for production and assembly into a cryomodule. Following a comprehensive cold acceptance test of all subsystems, the completed C100 cryomodules are installed and commissioned in the CEBAF machine in preparation of accelerator operations. This overview of the cryomodule production process will include all principal performance measurements, acceptance criterion and up to date status of current activities.
The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes.
 
 
WEPPC093 Commissioning and Operation of the CEBAF 100 MeV Cryomodules 2432
 
  • C. Hovater, T.L. Allison, R. Bachimanchi, G.K. Davis, M.A. Drury, L. Harwood, J. Hogan, A.J. Kimber, G.E. Lahti, W. Merz, R.M. Nelson, T. E. Plawski, D.J. Seidman, M. Spata, M.J. Wilson
    JLAB, Newport News, Virginia, USA
 
  Funding: This manuscript has been authored by Jefferson Science Associates, under U.S. DOE Contract No. DE-AC05-06OR23177.
The Continuous Electron Beam Accelerator Facility (CEBAF) energy upgrade from 6 GeV to 12 GeV includes the installation of ten new 100 MeV cryomodules and RF systems. The superconducting RF cavities are designed to be operated CW at a maximum accelerating gradient of 19.2 MV/m. To support the higher gradients and higher QL (~ 3x107), a new RF system has been developed and is being installed to power and control the cavities. The RF system employs digital control and 13 kW klystrons. Recently, two of these cryomodules and associated RF hardware and software have been installed and commissioned in the CEBAF accelerator. Electrons at currents up to 150 μA have been successfully accelerated and used for nuclear physics experiments. This paper reports on the commissioning and operation of the RF system and cryomodules.