Technical and scientific aspects of the JET trace-tritium experimental campaign

T.T.C. Jones, D. Brennan, R.J.H. Pearce, D. Stork, K.-D. Zastrow, N. Balshaw, A.C. Bell, L. Bertalot, H. Boyer, P.R. Butcher, C.D. Challis, D. Ciric, R. Clarke, S. Conroy, A.C. Darke, N. Davies, T. Edlington, G. Ericsson, C. Gibbons, L.J. HackettT. Haupt, M. Hitchin, A.S. Kaye, R. King, V.G. Kiptily, S. Knipe, G. Lawrence, R. Lobel, A. Mason, P.D. Morgan, B. Patel, S. Popovichev, M. Stamp, E. Surrey, A. Terrington, L. Worth, D. Young

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The JET Trace Tritium (TTE) programme marked the first use of tritium in experiments under the managerial control of UKAEA, which operates the JET Facility on behalf of EFDA. The introduction of tritium into the plasma by gas fuelling and neutral beam injection, even in trace quantities, required the mobilisation of gram-quantities of tritium gas from the Active Gas Handling System (AGHS) product storage units into the supply lines connected to the torus gas valve and the neutral beam injectors. All systems for DT gas handling, recovery and reprocessing were therefore recommissioned and operating procedures re-established, involving extensive operations staff training. The validation of Key Safety Related Equipment (KSRE) is described with reference to specific examples. The differences between requirements for TTE and full DT operations are shown to be relatively small. The scientific motivation for TTE, such as the possibility to obtain high-quality measurements in key areas such as fuel-ion transport and fast ion dynamics, is described, and the re-establishment and development of JET's 14MeV neutron diagnostic capability for TTE and future DT campaigns are outlined. Some scientific highlights from the TTE campaign are presented.
Original languageEnglish
Pages (from-to)250 - 257
Number of pages8
JournalFusion Science and Technology
Issue number1
Publication statusPublished - 2005
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Jones, T. T. C., Brennan, D., Pearce, R. J. H., Stork, D., Zastrow, K-D., Balshaw, N., ... Young, D. (2005). Technical and scientific aspects of the JET trace-tritium experimental campaign. Fusion Science and Technology, 48(1), 250 - 257.