Charge exchange recombination spectroscopy at Wendelstein 7-X

Wendelstein 7-X Team

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)
3 Downloads (Pure)

Abstract

The Charge Exchange Recombination Spectroscopy (CXRS) diagnostic has become a routine diagnostic on almost all major high temperature fusion experimental devices. For the optimized stellarator Wendelstein 7-X (W7-X), a highly flexible and extensive CXRS diagnostic has been built to provide high-resolution local measurements of several important plasma parameters using the recently commissioned neutral beam heating. This paper outlines the design specifics of the W7-X CXRS system and gives examples of the initial results obtained, including typical ion temperature profiles for several common heating scenarios, toroidal flow and radial electric field derived from velocity measurements, beam attenuation via beam emission spectra, and normalized impurity density profiles under some typical plasma conditions.

Original languageEnglish
Article number023507
Number of pages11
JournalReview of Scientific Instruments
Volume91
Issue number2
DOIs
Publication statusPublished - 1 Feb 2020

Fingerprint Dive into the research topics of 'Charge exchange recombination spectroscopy at Wendelstein 7-X'. Together they form a unique fingerprint.

Cite this