A Multi-Sample Cs-Sputter Negative Ion Source

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Description

A multi-sample Cs sputter negative-ion source, equipped with a conical-geometry, W-surface-ionizer has been designed and fabricated that permits sample changes without disruption of on-line accelerator operation. Sample changing is effected by actuating an electro-pneumatic control system located at ground potential that drives an air-motor-driven sample-indexing-system mounted at high voltage; this arrangement avoids complications associated with indexing mechanisms that rely on electronic power-supplies located at high potential. In-beam targets are identified by LED indicator lights derived from a fiber-optic, Gray-code target-position sensor. Aspects of the overall source design and details of the indexing mechanism along with operational parameters, ion optics. intensities, ... continued below

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10 p.

Creation Information

Alton, G.D.; Ball, J.A.; Bao, Y.; Cui, B.; Reed, C.A. & Williams, C. October 5, 1998.

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Description

A multi-sample Cs sputter negative-ion source, equipped with a conical-geometry, W-surface-ionizer has been designed and fabricated that permits sample changes without disruption of on-line accelerator operation. Sample changing is effected by actuating an electro-pneumatic control system located at ground potential that drives an air-motor-driven sample-indexing-system mounted at high voltage; this arrangement avoids complications associated with indexing mechanisms that rely on electronic power-supplies located at high potential. In-beam targets are identified by LED indicator lights derived from a fiber-optic, Gray-code target-position sensor. Aspects of the overall source design and details of the indexing mechanism along with operational parameters, ion optics. intensities, and typical emittances for a variety of negative-ion species will be presented in this report.

Physical Description

10 p.

Notes

INIS; OSTI as DE00003739

Medium: P; Size: 10 pages

Source

  • 8th International Conference on Heavy Ion Accelerator Technology, Argonne, IL (US), 10/05/1998--10/09/1998

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  • Report No.: ORNL/CP-101372
  • Report No.: KB 04 02 01 0
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 3739
  • Archival Resource Key: ark:/67531/metadc684897

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • October 5, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • April 6, 2017, 6:48 p.m.

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Alton, G.D.; Ball, J.A.; Bao, Y.; Cui, B.; Reed, C.A. & Williams, C. A Multi-Sample Cs-Sputter Negative Ion Source, article, October 5, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc684897/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.