CEBAF SRF Performance during Initial 12 GeV Commissioning

Conference · Tue Sep 01 00:00:00 EDT 2015

OSTI ID:1223471

Bachimanchi, Ramakrishna; Allison, Trent; Daly, Edward; Drury, Michael; Hovater, J; Lahti, George; Mounts, Clyde; Nelson, Richard; Plawski, Tomasz

The Continuous Electron Beam Accelerator Facility (CEBAF) energy upgrade from 6 GeV to 12 GeV includes the installation of eleven new 100 MV cryomodules (88 cavities). The superconducting RF cavities are designed to operate CW at an accelerating gradient of 19.3 MV/m with a Q_L of 3×10⁷. Not all the cavities were operated at the minimum gradient of 19.3 MV/m with the beam. Though the initial 12 GeV milestones were achieved during the initial commissioning of CEBAF, there are still some issues to be addressed for long term reliable operation of these modules. This paper reports the operational experiences during the initial commissioning and the path forward to improve the performance of C100 (100 MV) modules.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1223471
• Report Number(s): JLAB-ACC-15-2019; DOE/OR/23177-3531; TRN: US1601439
• Resource Relation: Conference: IPAC 2015, 3-8 May 2015. Richmond, Virginia, USA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CEBAF ACCELERATOR
GEV RANGE 10-100
COMMISSIONING
PERFORMANCE
SUPERCONDUCTING CAVITY RESONATORS
OPERATION