ELECTROMAGNETIC SIMULATIONS OF DIELECTRIC WALL ACCELERATOR STRUCTURES FOR ELECTRON BEAM ACCELERATION

Conference · Thu May 05 00:00:00 EDT 2005

DOI:https://doi.org/10.1109/PAC.2005.1591176· OSTI ID:15016340

Nelson, S D; Poole, B R

Dielectric Wall Accelerator (DWA) technology incorporates the energy storage mechanism, the switching mechanism, and the acceleration mechanism for electron beams. Electromagnetic simulations of DWA structures includes these effects and also details of the switch configuration and how that switch time affects the electric field pulse which accelerates the particle beam. DWA structures include both bi-linear and bi-spiral configurations with field gradients on the order of 20MV/m and the simulations include the effects of the beampipe, the beampipe walls, the DWA High Gradient Insulator (HGI) insulating stack, wakefield impedance calculations, and test particle trajectories with low emittance gain. Design trade-offs include the transmission line impedance (typically a few ohms), equilibration ring optimization, driving switch inductances, and layer-to-layer coupling effects and the associated affect on the acceleration pulse's peak value.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15016340
• Report Number(s): UCRL-CONF-212096; TRN: US0502250
• Resource Relation: Conference: Presented at: 2005 Particle Accelerator Conference (PAC 2005), Knoxville, TN (US), 05/16/2005--05/20/2005; Other Information: PBD: 5 May 2005
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
36 MATERIALS SCIENCE
43 PARTICLE ACCELERATORS
ACCELERATION
ACCELERATORS
CONFIGURATION
DESIGN
DIELECTRIC MATERIALS
ELECTRIC FIELDS
ELECTRON BEAMS
ENERGY STORAGE
IMPEDANCE
OPTIMIZATION
PARTICLE BEAMS
POWER TRANSMISSION LINES
TEST PARTICLES
TRAJECTORIES