Status of greater than or equal to 1 ampere H/sup -/ ion source development at the Lawrence Berkeley Laboratory

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This paper summarizes the effort to improve the operation of the approx. 1 A surface-production H/sup -/ ion source developed by K.W. Ehlers and K.N. Leung. The plasma chamber consists of a large magnetic bucket of oval cross section. A concave cylindrical converter surface is suspended in the plasma chamber to direct any surface-produced negative ions through the exit aperture. The ion source has been mated to a tetrode accelerator for the proof-of-principle tests. Most of the problems discovered in the tests were associated with difficulties in controlling the production process. This paper describes the plasma chamber in greater detail ... continued below

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Pages: 10

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Lietzke, A.F.; Ehlers, K.W. & Leung, K.N. November 1, 1983.

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Description

This paper summarizes the effort to improve the operation of the approx. 1 A surface-production H/sup -/ ion source developed by K.W. Ehlers and K.N. Leung. The plasma chamber consists of a large magnetic bucket of oval cross section. A concave cylindrical converter surface is suspended in the plasma chamber to direct any surface-produced negative ions through the exit aperture. The ion source has been mated to a tetrode accelerator for the proof-of-principle tests. Most of the problems discovered in the tests were associated with difficulties in controlling the production process. This paper describes the plasma chamber in greater detail and illustrates the quality of the presnet ion production. The acceleration difficulties have been deferred until a better test-stand is completed.

Physical Description

Pages: 10

Notes

NTIS, PC A02/MF A01.

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  • 3. international symposium on the production and neutralization of negative ions and beams, Upton, NY, USA, 14 Nov 1983

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  • Other: DE84006787
  • Report No.: LBL-16910
  • Report No.: CONF-831180-21
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 5267681
  • Archival Resource Key: ark:/67531/metadc1067645

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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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  • November 1, 1983

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 25, 2018, 3:09 p.m.

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Lietzke, A.F.; Ehlers, K.W. & Leung, K.N. Status of greater than or equal to 1 ampere H/sup -/ ion source development at the Lawrence Berkeley Laboratory, article, November 1, 1983; [Berkeley,] California. (digital.library.unt.edu/ark:/67531/metadc1067645/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.