Upgrade of the Drive LINAC for the AWA Facility Dielectric Two-Beam Accelerator

Conference · Mon Jul 02 04:00:00 EDT 2012 · Conf.Proc.C100523:THPD016,2010

OSTI ID:1045203

Power, John; Conde, Manoel; Gai, Wei; Li, Zenghai; Mihalcea, Daniel

We report on the design of a seven-cell, standing-wave, 1.3-GHz rf cavity and the associated beam dynamics studies for the upgrade of the drive beamline LINAC at the Argonne Wakefield Accelerator (AWA) facility. The LINAC design is a compromise between single-bunch operation (100 nC {at} 75 MeV) and minimization of the energy droop along the bunch train during bunch-train operation. The 1.3-GHz drive bunch-train target parameters are 75 MeV, 10-20-ns macropulse duration, and 16 x 60 nC microbunches; this is equivalent to a macropulse current and beam power of 80 A and 6 GW, respectively. Each LINAC structure accelerates approximately 1000 nC in 10 ns by a voltage of 11 MV at an rf power of 10 MW. Due to the short bunch-train duration desired ({approx}10 ns) and the existing frequency (1.3 GHz), compensation of the energy droop along the bunch train is difficult to accomplish by means of the two standard techniques: time-domain or frequency-domain beam loading compensation. Therefore, to minimize the energy droop, our design is based on a large stored energy rf cavity. In this paper, we present our rf cavity optimization method, detailed rf cavity design, and beam dynamics studies of the drive beamline.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: US DOE Office of Science (DOE SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1045203
• Report Number(s): SLAC-PUB-15138
• Conference Information: Journal Name: Conf.Proc.C100523:THPD016,2010
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
ACCPHY
BEAM DYNAMICS
DESIGN
DIELECTRIC MATERIALS
LINEAR ACCELERATORS
MINIMIZATION
OPTIMIZATION
STORED ENERGY
TARGETS
WAKEFIELD ACCELERATORS