Scaled, circular-emitter Penning SPS for intense H/sup -/ beams

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Description

The Los Alamos versions of the Penning Surface-Plasma Source (SPS) routinely generate H/sup -/ ion beams with pulsed currents over 100 mA. However, these sources employ geometries that result in the extraction of slit beams (0.5 x 10 mm/sup 2/). Our modeling with the SNOW code indicates that the beam from a 5.4-mm-diam circular emitter will have lower emittance and divergence for transport to and injection into our radio-frequency quadrupole (RFQ) accelerator. This paper describes a newly constructed Penning SPS that has most of its discharge chamber dimensions scaled up by a factor of 4 to accommodate this circular emitter.

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Pages: 6

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Smith, H.V. Jr.; Allison, P. & Sherman, J.D. January 1, 1983.

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Description

The Los Alamos versions of the Penning Surface-Plasma Source (SPS) routinely generate H/sup -/ ion beams with pulsed currents over 100 mA. However, these sources employ geometries that result in the extraction of slit beams (0.5 x 10 mm/sup 2/). Our modeling with the SNOW code indicates that the beam from a 5.4-mm-diam circular emitter will have lower emittance and divergence for transport to and injection into our radio-frequency quadrupole (RFQ) accelerator. This paper describes a newly constructed Penning SPS that has most of its discharge chamber dimensions scaled up by a factor of 4 to accommodate this circular emitter.

Physical Description

Pages: 6

Notes

NTIS, PC A02/MF A01.

Source

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

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  • Other: DE84003805
  • Report No.: LA-UR-83-3246
  • Report No.: CONF-831180-6
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5579925
  • Archival Resource Key: ark:/67531/metadc1092113

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • January 1, 1983

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • May 30, 2018, 7:01 p.m.

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Smith, H.V. Jr.; Allison, P. & Sherman, J.D. Scaled, circular-emitter Penning SPS for intense H/sup -/ beams, article, January 1, 1983; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1092113/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.