Commissioning of the superconducting ECR ion source VENUS at 18 GHz

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During the last year, the VENUS ECR ion source was commissioned at 18 GHz and preparations for 28 GHz operation are now underway. During the commissioning phase with 18 GHz, tests with various gases and metals have been performed with up to 2000 W RF power. The ion source performance is very promising [1,2]. VENUS (Versatile ECR ion source for Nuclear Science) is a next generation superconducting ECR ion source, designed to produce high current, high charge state ions for the 88-Inch Cyclotron at the Lawrence Berkeley National Laboratory. VENUS also serves as the prototype ion source for the RIA ... continued below

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Leitner, Daniela; Abbott, Steven R.; Dwinell, Roger D.; Leitner, Matthaeus; Taylor, Clyde E. & Lyneis, Claude M. June 1, 2004.

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Description

During the last year, the VENUS ECR ion source was commissioned at 18 GHz and preparations for 28 GHz operation are now underway. During the commissioning phase with 18 GHz, tests with various gases and metals have been performed with up to 2000 W RF power. The ion source performance is very promising [1,2]. VENUS (Versatile ECR ion source for Nuclear Science) is a next generation superconducting ECR ion source, designed to produce high current, high charge state ions for the 88-Inch Cyclotron at the Lawrence Berkeley National Laboratory. VENUS also serves as the prototype ion source for the RIA (Rare Isotope Accelerator) front end. The goal of the VENUS ECR ion source project as the RIA R&D injector is the production of 240e{micro}A of U{sup 30+}, a high current medium charge state beam. On the other hand, as an injector ion source for the 88-Inch Cyclotron the design objective is the production of 5e{micro}A of U{sup 48+}, a low current, very high charge state beam. To meet these ambitious goals, VENUS has been designed for optimum operation at 28 GHz. This frequency choice has several design consequences. To achieve the required magnetic confinement, superconducting magnets have to be used. The size of the superconducting magnet structure implies a relatively large plasma volume. Consequently, high power microwave coupling becomes necessary to achieve sufficient plasma heating power densities. The 28 GHz power supply has been delivered in April 2004.

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1 pages

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INIS; OSTI as DE00834232

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  • Other Information: PBD: 1 Jun 2004

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  • Report No.: LBNL--55311
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/834232 | External Link
  • Office of Scientific & Technical Information Report Number: 834232
  • Archival Resource Key: ark:/67531/metadc776936

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

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  • June 1, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Sept. 1, 2016, 6:59 p.m.

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Leitner, Daniela; Abbott, Steven R.; Dwinell, Roger D.; Leitner, Matthaeus; Taylor, Clyde E. & Lyneis, Claude M. Commissioning of the superconducting ECR ion source VENUS at 18 GHz, report, June 1, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc776936/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.