Community Research and Development Information Service - CORDIS

Abstract

A direct optical link has been established between the torus and the remote instruments designed for the active phase of JET. The system is based on a labyrinth light path and a set of remotely controlled relay mirrors, and covers a spectral range from 200 to 8000 Angstrom. The suitability of dominant UV charge exchange spectra for routine ion temperature and ion density diagnostics is considered, by comparing UV and visible CX spectra of CVI, BeIV, HeII and NeX, which represent the main light impurities in a JET plasma. In general, the gain in atomic emission cross-sections for UV lines is offset by the presence of additional edge emission lines nearby.

Additional information

Authors: MORSI H W, European Commission, Bruxelles (BE);VON HELLERMANN M, JET Joint Undertaking, Abingdon, Oxon. (GB);KÖNIG R W, JET Joint Undertaking, Abingdon, Oxon. (GB);SCHRÖPF H, Siemens-Forschungslabor, Erlangen (DE)
Bibliographic Reference: Report: JET-P(95)10 EN (1995) 35 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199510797 / Last updated on: 1995-07-17
Category: PUBLICATION
Original language: en
Available languages: en