Plasma gradient controlled injection and postacceleration of high quality electron bunches

Conference · Wed Oct 15 04:00:00 EDT 2008

OSTI ID:971431

Geddes, Cameron G.R.; Nakamura, Kei; Plateau, Guillaume R; Toth, Csaba; Cormier-Michel, Estelle; Esarey, Eric; Schroeder, Carl B; Cary, John R; Leemans, Wim P; Bruhwiler, D L

Plasma density gradients in a gas jet were used to control the wake phase velocity and trapping threshold in a laser wakefield accelerator, producing stable electron bunches with longitudinal and transverse momentum spreads more than 10 times lower than in previous experiments (0.17 and 0.02 MeV=c FWHM, respectively) and with central momenta of 0.76 +- 0.02 MeV=c. Transition radiation measurements combined with simulations indicated that the bunches can be used as a wakefieldaccelerator injector to produce stable beams with 0.2 MeV=c-class momentum spread at high energies.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Accelerator& Fusion Research Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 971431
• Report Number(s): LBNL-2317E
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATORS
ELECTRONS
LASERS
Laser Plasma Wakefield Particle Accelerator Experiment Density Gradient Ramp Particle in Cell Simulations Parallel SciDAC LOASIS
PHASE VELOCITY
PLASMA
PLASMA DENSITY
TRANSITION RADIATION
TRANSVERSE MOMENTUM
TRAPPING
WAKEFIELD ACCELERATORS