Measurements of tritium retention and removal on the Tokamak Fusion Test Reactor

  • C. H. Skinner
  • , W. Blanchard
  • , J. Kamperschroer
  • , P. LaMarche
  • , D. Mueller
  • , A. Nagy
  • , S. Scott
  • , G. Ascione
  • , E. Amarescu
  • , R. Camp
  • , M. Casey
  • , J. Collins
  • , M. Cropper
  • , C. Gentile
  • , M. Gibson
  • , J. Hosea
  • , M. Kalish
  • , J. Langford
  • , S. Langish
  • , R. Mika
  • D. K. Owens, G. Pearson, S. Raftopoulos, R. Raucci, T. Stevenson, A. Von Halle, D. Voorhees, T. Walters, J. Winston

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Recent experiments on the Tokamak Fusion Test Reactor have afforded an opportunity to measure the retention of tritium in a graphite limiter that is subject to erosion, codeposition, and high neutron flux. The tritium was injected by both gas puff and neutral beams. The isotopic mix of hydrogenic recycling was measured spectroscopically and the tritium fraction T/(H+D+T) transiently increased to as high as 75%. Some tritium was pumped out during the experimental run and some removed in a subsequent campaign using various clean-up techniques. While the short term retention of tritium was high, various conditioning techniques were successful in removing ≈8000 Ci and restoring the tritium inventory to a level well below the administrative limit.

Original languageEnglish (US)
Pages (from-to)3267-3274
Number of pages8
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume14
Issue number6
DOIs
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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