EVALUATION AND TESTING OF A LOW-B SPOKE RESONATOR

Conference · Fri Jun 01 00:00:00 EDT 2001

DOI:https://doi.org/10.1109/PAC.2001.986518· OSTI ID:783284

TAJIMA, T; MONTOYA, D I

Within the framework of the Advanced Accelerator Applications (AAA) project we are interested in building and testing low-{beta} spoke resonators (cavities). To familiarize us with the specifics of these structures Argonne National Laboratory (ANL) kindly loaned us one of their spoke cavities for evaluation. This is a {beta}=0.291 2-gap resonator at 340 MHz. We benchmarked our computer codes by comparing room temperature measurements of frequency, tuning sensitivity, tuning forces, etc. with our 3D simulation results. The cavity was tested at both 4 K and 2 K. The results showed maximum accelerating gradients of 12.5 MV/m (4 K) and 12.3 MV/m (2 K), which correspond to a peak electric field of 40 MV/m and a peak magnetic field of 1063 Oe. Q{sub 0} values at 5 MV/m also exceeded by more than a factor 2 of present AAA specification. These results encouraged us toward development of spoke cavities for the low energy section (6.7 MeV to 109 MeV) of ADTF (Accelerator-Driven Test Facility) of AAA project.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 783284
• Report Number(s): LA-UR-01-3141; TRN: US0106107
• Resource Relation: Journal Volume: 2; Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Jun 2001
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CAVITY RESONATORS
COMPUTER CODES
ELECTRIC FIELDS
EVALUATION
MAGNETIC FIELDS
TEMPERATURE MEASUREMENT
PERFORMANCE TESTING