Production and post-acceleration of intense ion beams in magnetically insulated gaps

Technical Report · Wed Aug 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/5864351· OSTI ID:5864351

Humphries, S Jr; Freeman, J R; Greenly, J; Kuswa, G W; Mendel, C W; Poukey, J W; Woodall, D W

Experiments are described pertaining to the development of very high current pulsed linear ion accelerators utilizing electron neutralization. These have application as inertial fusion drivers with intermediate mass ion beams of greatest interest. Progress has been made in a number of areas. A novel magnetically insulated gap using radial magnetic fields has been tested. It provides stable electron cloud confinement over microsecond time scales with no detectable leakage current. The gap can act as an ion injector when used in conjunction with a plasma source. Control of the electron cloud dynamics allows the injector to operate in an enhanced current density mode (10 to 50 times the Child-Langmuir limit) with high efficiency and with plasma source control of the current flow. Currents up to 20 kA at 100 kV applied voltage resulted when using a light ion flashboard. Carbon beams were produced by extraction from a flowing plasma from a gun array.

• Research Organization: Sandia Labs., Albuquerque, NM (USA); Cornell Univ., Ithaca, NY (USA). Lab. of Plasma Studies; New Mexico Univ., Albuquerque (USA). Dept. of Chemical and Nuclear Engineering
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 5864351
• Report Number(s): SAND-79-1673
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATION
ACCELERATORS
ATOMIC IONS
BEAM TRANSPORT
BEAMS
CARBON IONS
CHARGED PARTICLES
CONFINEMENT
ELECTRODES
INERTIAL CONFINEMENT
ION BEAMS
IONS
LINEAR ACCELERATORS
NUCLEON BEAMS
PARTICLE BEAMS
PLASMA CONFINEMENT
PROTON BEAMS