Erosion and transport of Sn and In in the SOL of MAST plasmas

Foster, A.R. and Counsell, G.F. and Summers, H.P. (2007) Erosion and transport of Sn and In in the SOL of MAST plasmas. Journal of Nuclear Materials, 363-365. pp. 152-156. ISSN 0022-3115 (https://doi.org/10.1016/j.jnucmat.2007.01.056)

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Abstract

A satisfactory method for monitoring the erosion of vessel wall tiles in a fusion power plant remains an important missing diagnostic in the fusion program. Spectroscopic observation of embedded impurity layers may provide such a capability. In a preliminary experiment, Sn and In have been introduced to the scrape off layer of MAST plasmas by erosion from a target mounted on the reciprocating probe system, and have been successfully observed spectroscopically in the core and at the edge. The atomic transitions corresponding to each observed spectral line and feature have been predicted and then identified, with those in the visible region being used to estimate the erosion/influx rate. The confined plasma emission has been measured and modelled using the impurity transport code UTC-SANCO. The results show that eroded Sn and In emission is observable and distinguishable in MAST, and shows that the technique has promise for use in future devices. (c) 2007 A.R. Foster. Published by Elsevier B.V. All rights reserved.

  • Item type:Article
    ID code:31227
    Dates:
    Date
    Event
    15 June 2007
    Published
    Notes:17th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices, Hefei, PEOPLES R CHINA, MAY 22-26, 2006
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:13 Jul 2011 08:55
    Last modified:08 Apr 2024 19:07
    URI:https://strathprints.strath.ac.uk/id/eprint/31227
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