Pulsed, Inductively Generated, Streaming Plasma Ion Source for Heavy Ion Fusion Linacs

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This report describes a compact, high current density, pulsed ion source, based on electrodeless, inductively driven gas breakdown, developed to meet the requirements on normalized emittance, current density, uniformity and pulse duration for an ion injector in a heavy-ion fusion driver. The plasma source produces >10 μs pulse of Argon plasma with ion current densities >100 mA/cm2 at 30 cm from the source and with strongly axially directed ion energy of about 80 eV, and sub-eV transverse temperature. The source has good reproducibility and spatial uniformity. Control of the current density during the pulse has been demonstrated with a novel ... continued below

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Glidden, Steven C.; Sanders, Howard D; Greenly, John B. & Dongwoo, Daniel L. April 28, 2006.

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Description

This report describes a compact, high current density, pulsed ion source, based on electrodeless, inductively driven gas breakdown, developed to meet the requirements on normalized emittance, current density, uniformity and pulse duration for an ion injector in a heavy-ion fusion driver. The plasma source produces >10 μs pulse of Argon plasma with ion current densities >100 mA/cm2 at 30 cm from the source and with strongly axially directed ion energy of about 80 eV, and sub-eV transverse temperature. The source has good reproducibility and spatial uniformity. Control of the current density during the pulse has been demonstrated with a novel modulator coil method which allows attenuation of the ion current density without significantly affecting the beam quality. This project was carried out in two phases. Phase 1 used source configurations adapted from light ion sources to demonstrate the feasibility of the concept. In Phase 2 the performance of the source was enhanced and quantified in greater detail, a modulator for controlling the pulse shape was developed, and experiments were conducted with the ions accelerated to >40 kV.

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6 MB

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  • Report No.: DOE/ER83147-FINAL
  • Grant Number: FG02-01ER83147
  • DOI: 10.2172/900203 | External Link
  • Office of Scientific & Technical Information Report Number: 900203
  • Archival Resource Key: ark:/67531/metadc891007

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Creation Date

  • April 28, 2006

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 7, 2016, 2:32 p.m.

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Glidden, Steven C.; Sanders, Howard D; Greenly, John B. & Dongwoo, Daniel L. Pulsed, Inductively Generated, Streaming Plasma Ion Source for Heavy Ion Fusion Linacs, report, April 28, 2006; United States. (digital.library.unt.edu/ark:/67531/metadc891007/: accessed July 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.