Radiation distributions in TCV

G. Veres, R. A. Pitts, M. Wischmeier, B. Gulejova, J. Horacek, S. Kálvin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Total radiative powers measured by foil bolometer and AXUV camera systems are compared to SOLPS5 simulations in low and high density deuterium and helium diverted discharges on the TCV tokamak. For low density the match between simulation and measurements is satisfactory, but at high density strongly radiating regions outside the SOLPS5 simulation grid are seen in measurements and this may indicate the presence of enhanced convective particle transport in the low field side midplane region. The chord coverage of the foil bolometer system does not, however, allow detailed resolution in this region. The comparison of foil and AXUV data also demonstrates that ageing of the AXUV diodes under plasma irradiation combined with the unevenness of the diode spectral response, strongly limits their application for total radiative power measurements.

Original languageEnglish
Pages (from-to)1104-1109
Number of pages6
JournalJournal of Nuclear Materials
Volume363-365
Issue number1-3
DOIs
Publication statusPublished - Jun 15 2007

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Keywords

  • Divertor plasma
  • Impurity sources
  • Power balance
  • Radiation
  • TCV

ASJC Scopus subject areas

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

Cite this

Veres, G., Pitts, R. A., Wischmeier, M., Gulejova, B., Horacek, J., & Kálvin, S. (2007). Radiation distributions in TCV. Journal of Nuclear Materials, 363-365(1-3), 1104-1109. https://doi.org/10.1016/j.jnucmat.2007.01.172