Negative ion source with low temperature transverse divergence optical system

Title: Negative ion source with low temperature transverse divergence optical system

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Abstract

A negative ion source is provided which has extremely low transverse divergence as a result of a unique ion focusing system in which the focal line of an ion beam emanating from an elongated, concave converter surface is outside of the ion exit slit of the source and the path of the exiting ions. The beam source operates with a minimum ion temperature which makes possible a sharply focused (extremely low transverse divergence) ribbon like negative ion beam.

Inventors:

Whealton, John H ^[1]; Stirling, William L ^[1]

Oak Ridge, TN

Publication Date:: 1986-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 865935

Patent Number(s):: US 4602161

Assignee:: United States of America as represented by United States (Washington, DC)

DOE Contract Number:: W-7405-ENG-26

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: negative; source; temperature; transverse; divergence; optical; provided; extremely; result; unique; focusing; focal; line; beam; emanating; elongated; concave; converter; surface; outside; exit; slit; path; exiting; operates; minimum; makes; sharply; focused; ribbon; beam source; transverse divergence; beam emanating; /250/313/315/376/

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                    Whealton, John H, and Stirling, William L. Negative ion source with low temperature transverse divergence optical system.  United States: N. p., 1986. 
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                    Whealton, John H, & Stirling, William L. Negative ion source with low temperature transverse divergence optical system.  United States.

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                    Whealton, John H, and Stirling, William L. Wed .  
        "Negative ion source with low temperature transverse divergence optical system".  United States.  https://www.osti.gov/servlets/purl/865935.

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@article{osti_865935,

  title        = {Negative ion source with low temperature transverse divergence optical system},

  author       = {Whealton, John H and Stirling, William L},

  abstractNote = {A negative ion source is provided which has extremely low transverse divergence as a result of a unique ion focusing system in which the focal line of an ion beam emanating from an elongated, concave converter surface is outside of the ion exit slit of the source and the path of the exiting ions. The beam source operates with a minimum ion temperature which makes possible a sharply focused (extremely low transverse divergence) ribbon like negative ion beam.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/865935},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1986},

  month        = {1}

}

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Negative ion source with low temperature transverse divergence optical system

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