Multipacting-free quarter-wavelength choke joint design for BNL SRF

Conference · Sun May 03 00:00:00 EDT 2015

OSTI ID:1183845

Xu, W. ^[1]; Belomestnykh, S. ^[2]; Ben-Zvi, I. ^[2]; Liaw, C. J. ^[1]; Smith, K. ^[1]; Than, R. ^[1]; Tuozzolo, J. ^[1]; Wang, E. ^[1]; Weiss, D. ^[1]; Zaltsman, A. ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.
2. Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.; Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy

The BNL SRF gun cavity operated well in CW mode up to 2 MV. However, its performance suffered due to multipacting in the quarter-wavelength choke joint. A new multipacting-free cathode stalk was designed and conditioned. This paper describes RF and thermal design of the new cathode stalk and its conditioning results.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: SC00112704
• OSTI ID: 1183845
• Report Number(s): BNL-107295-2015-CP; R&D Project: KBCH139; KB0202011; TRN: US1500213
• Resource Relation: Conference: 6th International Particle Accelerator Conference (IPAC’15), Richmond, VA (United States), 3-8 May 2015
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BROOKHAVEN RHIC
DESIGN
CATHODES
JOINTS
SUPERCONDUCTING CAVITY RESONATORS
RF SYSTEMS
PERFORMANCE
ELECTRON GUNS
LINEAR ACCELERATORS