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Title: Operational experience with CW high gradient and high QL cryomodules

The Continuous Electron Beam Accelerator Facility (CEBAF) energy upgrade from 6 GeV to 12 GeV includes the installation of ten new 100 MV cryomodules (80 cavities). The superconducting RF cavities are designed to operate CW at an accelerating gradient of 19.3 MV/m with a QL of 3×107. The RF system employs single cavity control using new digital LLRF controls and 13 kW klystrons. Recently, all of the new cryomodules and associated RF hardware and software have been commissioned and operated in the CEBAF accelerator. Electrons at linac currents up to 10 ?A have been successfully accelerated and used for nuclear physics experiments. This paper reports on the commissioning and operation of the cryomodules and RF system.
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  1. JLAB
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-ACE-14-1958; DOE/OR/23177-3184
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: LINAC14, 31 August-5 September 2014, Geneva, Switzerland
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States