Space-charge-neutralized proton beam transport in an axial magnetic field

Journal Article · Mon Jan 15 00:00:00 EST 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.345762· OSTI ID:7243930

Kerslick, G S; Golkowski, C; Nation, J A; Roth, I S; Ivers, J D ^[1]

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1. Laboratory of Plasma Studies and School of Electrical Engineering, Cornell University, Ithaca, New York, 14853-5401 (US)

The generation and transport of a 1-MV, 5-kA, 50-ns annular proton beam has been studied. The diode is magnetically insulated with a full-cusp field geometry. Beam transport in a 6-kG axial magnetic field is measured for injection into vacuum and neutral gas. The neutral gas background is supplied by a fast puff valve system. The gas background is found to enhance the space-charge neutralization of the beam. Under these conditions the beam divergence is {lt}1{degree} and the annular profile is maintained throughout the 30-cm transport region. We discuss a simplified model of the beam injection process to explain the experimental results.

• OSTI ID: 7243930
• Journal Information: Journal of Applied Physics; (USA), Vol. 67:2; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PROTON BEAMS
BEAM PRODUCTION
BEAM INJECTION
BEAM NEUTRALIZATION
BEAM OPTICS
BEAM TRANSPORT
HZ RANGE
KILO AMP BEAM CURRENTS
MAGNETIC FIELDS
MEV RANGE
SIMULATION
SPACE CHARGE
BEAM CURRENTS
BEAMS
CURRENTS
ENERGY RANGE
FREQUENCY RANGE
NUCLEON BEAMS
PARTICLE BEAMS
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions