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Abstract

The understanding of plasma surface interactions, in order to assess the main processes which take place in the divertor region, requires knowledge of the plasma characteristics. In JET, the characterization of the different divertor geometry for the successive Mark 1, Mark IIA, Mark IIAP and finally Mark IIGB divertors entails knowledge of plasma parameters such as ion and electron density, ion and electron temperature and the recycling particle edge at the flux. Whereas the particle recycling can be estimated by measuring the intensity of D-alpha line emission, can be easily and routinely obtained when measured by Langmuir probes.

Additional information

Authors: HORTIN L D, JET Joint Undertaking, Abingdon (GB);MAGGI C F, JET Joint Undertaking, Abingdon (GB);MORGAN P D, JET Joint Undertaking, Abingdon (GB);STAMP M F, JET Joint Undertaking, Abingdon (GB);VON HELLERMAN M, JET Joint Undertaking, Abingdon (GB)
Bibliographic Reference: Report: JET-R(99)05, (1999), 20pp.
Availability: Available from Librarian at JET Joint Undertaking, Abingdon (GB)
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