Peaked density profiles and MHD activity on FTU in lithium dominated discharges

O. Tudisco, C. Mazzotta, A. Botrugno, G. Mazzitelli, M.L. Apicella, G. Apruzzese, D. Frigione, L. Gabellieri, A. Romano

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Abstract

Density profiles become broader, as the line averaged density is increased. At higher density, change of the trend is associated with the appearance of the MARFE. Lithium coated wall extends the maximum density accessible at low current (well above the Greenwald density limit) and can produce profiles with very high density gradient. At higher current the effect on the density limit can be exceeded only if the magnetic field is raised too. A comparison of successive similar discharges before and after wall conditioning with lithium showed a reduction of the MHD activity. © 2010 Elsevier B.V.
Original languageEnglish
Pages (from-to)902 - 909
Number of pages8
JournalFusion Engineering and Design
Volume85
Issue number6
DOIs
Publication statusPublished - Nov 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Nuclear Energy and Engineering
  • Mechanical Engineering

Cite this

Tudisco, O., Mazzotta, C., Botrugno, A., Mazzitelli, G., Apicella, M. L., Apruzzese, G., Frigione, D., Gabellieri, L., & Romano, A. (2010). Peaked density profiles and MHD activity on FTU in lithium dominated discharges. Fusion Engineering and Design, 85(6), 902 - 909. https://doi.org/10.1016/j.fusengdes.2010.08.037