Determination of both the electron density and the poloidal magnetic field in a tokamak plasma from polarimetric measurements of phase only

S.E. Segre

Research output: Contribution to journalArticle

9 Citations (Scopus)


It is shown that it is possible to measure both the plasma density and the poloidal magnetic field simultaneously by polarimetry, purely from phase measurements. The latter are advantageous compared with previously proposed amplitude measurements. The phase measurements can be performed either by modulating the input polarization (two alternative configurations for this modulation are considered), or by modulating the output polarization. The merits of the three schemes are discussed. The polarimeter required for these measurements is simpler and more robust than the conventional interferometer-polarimeter presently used for the combined density and magnetic field measurements. © 1996 IOP Publishing Ltd.
Original languageEnglish
Pages (from-to)883 - 888
Number of pages6
JournalPlasma Physics and Controlled Fusion
Issue number6
Publication statusPublished - 1996
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Nuclear and High Energy Physics

Cite this