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  • An Empirical Method for the Determination of Elemental Components of Radiated Powers and Impurity Concentrations from VUV and XUV Spectral Features in Tokamak Plasmas

Abstract

The derivation of elemental components of radiated powers and impurity concentrations in bulk tokamak plasmas is complex, often requiring a full description of the impurity transport. A novel, empirical method, the Line Intensity Normalization Technique (LINT) has been developed on the JET (Joint European Torus) tokamak to provide routine information about the impurity content of the plasma and elemental components of radiated power (Prad). The technique employs a few VUV and XUV resonance line intensities to represent the intrinsic impurity elements in the plasma. From a data base comprising these spectral features, the total bolometric measurements of the radiated power and the Zeff measured by visible spectroscopy, separate elemental components of Prad and Zeff are derived.

Additional information

Authors: LAWSON K D ET AL, JET Joint Undertaking, Abingdon, Oxfordshire (GB)
Bibliographic Reference: Article: An Empirical Method for the Determination of Elemental Components of Radiated Powers and Impurity Concentrations from VUV and XUV Spectral Features in Tokamak Plasmas, JET-P(98)33
Record Number: 199910787 / Last updated on: 1999-05-28
Category: PUBLICATION
Original language: en
Available languages: en