Status report on a dc 130 mA, 75 keV proton injector (invited)

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1148706· OSTI ID:591924

Sherman, J; Arvin, A; Hansborough, L; Hodgkins, D; Meyer, E; Schneider, J D; Smith, Jr, H V; Stettler, M; Stevens, Jr, R R; Thuot, M; Zaugg, T ^[1]; Ferdinand, R ^[2]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. CEA-Saclay, LNS, 91191 Gif-sur-Yvette Cedex (France)

A 110 mA, 75 keV dc proton injector is being developed at Los Alamos. A microwave proton source is coupled to a two solenoid, space-charge neutralized, low-energy beam transport (LEBT) system. The ion source produces 110 mA proton current at 75 keV using 600{endash}800 W of 2.45 GHz discharge power. Typical proton fraction is 85{percent}{endash}90{percent} of the total extracted ion current, and the rms normalized beam emittance after transport through a prototype 2.1 m LEBT is 0.20 ({pi}mmmrad). Beam space-charge neutralization is measured to be {gt}98{percent} which enables the solenoid magnetic transport to successfully match the injector beam into a radio-frequency quadrupole. Beam simulations indicate small emittance growth in the proposed 2.8 m low-energy demonstration accelerator LEBT. The LEBT also contains beam diagnostics, steering, and a beam deflector for variable duty factor and accelerator fast protect functions. The injector beam availability status is also discussed. {copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 591924
• Report Number(s): CONF-980145--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 69; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CHARGED-PARTICLE TRANSPORT
ION BEAM INJECTION
ION SOURCES
KEV RANGE 10-100
LINEAR ACCELERATORS
PROTON SOURCES