Multiple beam induction linac research at LBL

Conference · Fri Jun 01 04:00:00 EDT 1990

OSTI ID:6638227

Garvey, T; Eylon, S; Fessenden, T J; Hahn, K; Henestroza, E; Keefe, D

We present results of progress on the LBL multiple beam induction linac experiment (MBE-4). This machine models the accelerator physics of the electric-focused portion of a driver for heavy ion inertial confinement fusion. Four beams of cesium ions are accelerated in common through twenty four induction gaps while being separately focused in individual electrostatic AG focusing channels. Early experiments have demonstrated current amplification in the linac, from 10 mA to 90 mA per beam. This is achieved both by acceleration (from 200 keV to 1 MeV) and by carefully controlled bunch compression. Recent experiments have concentrated on studies of beams extracted from an ion source which produces 5 mA cesium beams at emittances near 0.03 {pi} mm-mrad (normalized). Experiments and theory show a growth of emittance (by about a factor of 2) as these beams are accelerated through the linac. Results of recent measurements of the transverse emittance behavior of these strongly space-charge-dominated ion beams are reviewed and compared with theory. 9 refs., 3 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6638227
• Report Number(s): LBL-28167; CONF-9007111--14; HIFAN--440; ON: DE90015724
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200 -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATORS
BEAM EMITTANCE
CESIUM IONS
CHARGED PARTICLES
CONFINEMENT
HEAVY ION ACCELERATORS
HEAVY ION FUSION REACTIONS
HILACS
INERTIAL CONFINEMENT
IONS
LINEAR ACCELERATORS
NUCLEAR REACTIONS
PLASMA CONFINEMENT
SPACE CHARGE