Conceptual Engineering Method for Attenuating He Ion Interactions on First Wall Components in the Fusion Test Facility (FTF) Employing a Low-Pressure Noble Gas Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title Conceptual Engineering Method for Attenuating He Ion Interactions on First Wall Components in the Fusion Test Facility (FTF) Employing a Low-Pressure Noble Gas

Creator

  • Author: C.A.Gentile, W.R.Blanchard, T.Kozub, C.Priniski, I.Zatz, S.Obenschain
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy. Office of Science.
    Contributor Type: Organization

Publisher

  • Name: Princeton University. Plasma Physics Laboratory.
    Place of Publication: Princeton, New Jersey
    Additional Info: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Date

  • Creation: 2009-09-21

Language

  • English

Description

  • Content Description: It has been shown that post detonation energetic helium ions can drastically reduce the useful life of the (dry) first wall of an IFE reactor due to the accumulation of implanted helium. For the purpose of attenuating energetic helium ions from interacting with first wall components in the Fusion Test Facility (FTF) target chamber, several concepts have been advanced. These include magnetic intervention (MI), deployment of a dynamically moving first wall, use of a sacrificial shroud, designing the target chamber large enough to mitigate the damage caused by He ions on the target chamber wall, and the use of a low pressure noble gas resident in the target chamber during pulse power operations. It is proposed that employing a low-pressure (~ 1 torr equivalent) noble gas in the target chamber will thermalize energetic helium ions prior to interaction with the wall. The principle benefit of this concept is the simplicity of the design and the utilization of (modified) existing technologies for pumping and processing the noble ambient gas. Although the gas load in the system would be increased over other proposed methods, the use of a "gas shield" may provide a cost effective method of greatly extending the first wall of the target chamber. An engineering study has been initiated to investigate conceptual engineering metmethods for implementing a viable gas shield strategy in the FTF.

Subject

  • Keyword: Laser Fusion, Direct Drive, First Wall, Shield Gas
  • Keyword: Pumping
  • Keyword: Target Chambers Laser Fusion, Direct Drive, First Wall, Shield Gas
  • STI Subject Categories: 70 Plasma Physics And Fusion Technology
  • Keyword: Processing
  • Keyword: Helium Ions
  • Keyword: First Wall
  • Keyword: Shields
  • Keyword: Service Life
  • Keyword: Design
  • Keyword: Helium
  • Keyword: Explosions

Source

  • Conference: 23rd Symposium on Fusion Engineering, San Diego, CA May 31-June 4, 2009

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: PPPL-4460
  • Grant Number: DE-ACO2-09CH11466
  • Office of Scientific & Technical Information Report Number: 965278
  • Archival Resource Key: ark:/67531/metadc931047