SUPERCONDUCTING RF-DIPOLE DEFLECTING AND CRABBING CAVITIES

Conference · Sun Sep 01 04:00:00 EDT 2013

OSTI ID:1164406

Delayen, Jean ^[1]; De Silva, Paygalage Subashini ^[1]

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1. ODU, JLAB

Recent interests in designing compact deflecting and crabbing structures for future accelerators and colliders have initiated the development of novel rf structures. The superconducting rf-dipole cavity is one of the first compact designs with attractive properties such as higher gradients, higher shunt impedance, the absence of lower order modes and widely separated higher order modes. Two rf-dipole designs of 400 MHz and 499 MHz have been designed, fabricated and tested as proof-of-principle designs of compact deflecting and crabbing cavities for the LHC high luminosity upgrade and Jefferson Lab 12 GeV upgrade. The first rf tests have been performed on the rf-dipole geometries at 4.2 K and 2.0 K in a vertical test assembly with excellent results. The cavities have achieved high gradients with high intrinsic quality factors, and multipacting levels were easily processed.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1164406
• Report Number(s): JLAB-ACC-13-1717; DOE/OR/23177-2847
• Country of Publication: United States
• Language: English