Diagnostics for studying deposition and erosion processes in JET

J.P. Coad (Corresponding Author), H.-G. Esser, Jari Likonen, M. Mayer, G. Neill, V. Philipps, M. Rubel, J. Vince, JET-EFDA Contributors

    Research output: Contribution to journalArticleScientificpeer-review

    24 Citations (Scopus)


    Estimates of erosion, deposition and H-isotope retention in JET from previous divertor campaigns have relied on analysis of in-vessel components removed at shutdowns. The components analysed have also provided an incomplete coverage of the vessel. In 2004, new diagnostics are being installed to give a more complete picture (such as smart tiles) and to provide some time resolution. The latter includes further quartz microbalances (QMB), following the successful operation of a prototype in 2002–2004 [H.-G. Esser, G. Neill, P. Coad, G.F. Matthews, D. Jolovic, D. Wilson, M. Freisinger, V. Philipps, Quartz microbalance: a time-resolved diagnostic to measure material deposition in JET, Fusion Eng. Des. 66–68 (2003) 855–860; H.-G. Esser, V. Philipps, M. Freisinger, G.F. Matthews, J.P. Coad, G.F. Neill, JET EFDA Contributors, Effect of plasma configuration on carbon migration measured in the inner divertor of JET using quartz microbalance, J. Nucl. Mater. 337–339 (2005) 84–87], which will also have temperature control. Other diagnostics include rotating collectors and deposition monitors [M. Mayer, V. Rohde, P. Coad, P. Wienhold, ASDEX Upgrade Team, JET EFDA Contributors, Carbon erosion and migration in fusion devices, Phys. Scr. T111 (2004) 55–59]. Units are also being installed to provide information on mirrors for ITER.
    Original languageEnglish
    Pages (from-to)745 - 749
    Number of pages5
    JournalFusion Engineering and Design
    Issue number1-4
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed


    • diagnostics
    • divertor
    • Tokamak
    • retention
    • JE
    • ITER
    • fusion energy


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