A multiple-sample, cesium-sputter, negative ion source

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1142907· OSTI ID:7280443

Alton, G D ^[1]

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1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6368 (United States)

A multiple-sample, cesium-sputter, negative-ion source which permits sample changes without disruption of on-line tandem electrostatic accelerator operations is described. The source is equipped with provisions for remotely selecting and moving into the beam position any one of 60 samples by means of stepping motors equipped with absolute shaft encoders. A spherical-sector cesium ionizer is used to produce the cesium beam for sputtering the sample material. The source is equipped with a three-element electrode system which has been designed to increase the perveance for cesium ion beam generation and to improve negative ion beam extraction from the source.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7280443
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 63:4; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
661220 -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
BEAM EXTRACTION
CESIUM IONS
CHARGED PARTICLES
DESIGN
ELECTROSTATIC ACCELERATORS
ION SOURCES
IONS
NATIONAL ORGANIZATIONS
ORNL
PERFORMANCE
SPUTTERING
TANDEM ELECTROSTATIC ACCELERATORS
Ta
Targets-- (1992-)
US AEC
US DOE
US ERDA
US ORGANIZATIONS