Anode sputtering characteristics of the Berkeley 2.5 MV source

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An investigation was made of a number of parameters affecting the performance of the SuperHILAC 2.5 MV Adam injector source. The description will emphasize anode sputtered materials, and will discuss in some detail calcium and gold ion production. Parameters varied include electrode geometry, support gas type and electrode bias, to optimize beam intensity and electrode consumption. A factor of three improvement with high n$sup +$ gold ions appears evident with a new displaced electrode geometry. The source is operated in cold mode, is pulsed and operates usually at less than 0.6 amperes average current. Under these conditions source life has ... continued below

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6 p.

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Gavin, B. October 1, 1975.

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Description

An investigation was made of a number of parameters affecting the performance of the SuperHILAC 2.5 MV Adam injector source. The description will emphasize anode sputtered materials, and will discuss in some detail calcium and gold ion production. Parameters varied include electrode geometry, support gas type and electrode bias, to optimize beam intensity and electrode consumption. A factor of three improvement with high n$sup +$ gold ions appears evident with a new displaced electrode geometry. The source is operated in cold mode, is pulsed and operates usually at less than 0.6 amperes average current. Under these conditions source life has been measured to be sixteen hours at 25 percent duty factor when generating calcium ions with neon support gas. (auth)

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6 p.

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Dep. NTIS

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  • IEEE conference on plasma science, Gatlinburg, Tennessee, USA, 27 Oct 1975

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  • Report No.: LBL--4291
  • Report No.: CONF-751077--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 4108722
  • Archival Resource Key: ark:/67531/metadc867973

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  • October 1, 1975

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  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 11, 2017, 1:42 p.m.

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Gavin, B. Anode sputtering characteristics of the Berkeley 2.5 MV source, article, October 1, 1975; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc867973/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.