Requirements for an active spectroscopy diagnostic with neutral beams on the RFX reversed field pinch

L. Carraro, M.E. Puiatti, F. Sattin, P. Scarin, M. Valisa

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Abstract

The conceptual feasibility of an active spectroscopic diagnostic on reversed field experiment (RFX) to measure the radial profiles of ion temperature, toroidal and poloidal drift velocities, and main impurity densities is examined. In particular a charge exchange recombination spectroscopy experiment is simulated for carbon and helium impurities. The motional Stark effect on the beam atoms injected into RFX is estimated as a means to measure the magnetic field pitch and intensity. A modulated beam injector (500 Hz) with 2 A of equivalent current and an energy of 50 keV/amu appears to be adequate to perform the measurements over a reasonable range of operational regimes. © 1999 American Institute of Physics.
Original languageEnglish
Pages (from-to)861 - 864
Number of pages4
JournalReview of Scientific Instruments
Volume70
Issue number1 II
Publication statusPublished - Jan 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Carraro, L., Puiatti, M. E., Sattin, F., Scarin, P., & Valisa, M. (1999). Requirements for an active spectroscopy diagnostic with neutral beams on the RFX reversed field pinch. Review of Scientific Instruments, 70(1 II), 861 - 864.