An optical scanning system for spectroscopic impurity flux investigations inside the ASDEX tokamak
A scanning mirror system was developed to resolve impurity flux sources spatially across about 2/3 of the ASDEX surface by using visible spectroscopy. A totally computer-controlled layout allows wide-range spatial scanning during a discharge. Spectra over a range of about 150 Å are recorded with an integration time down to 20ms. The versatility of this new system is illustrated by means of first observations of ASDEX discharges with additional heating (NI, LH, ICRH) and modulated gas puffing experiments.
Bibliographic Reference: Report: IPP III/152 EN (1989) 35 pp.
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 199011402 / Last updated on: 1994-12-01
Original language: en
Available languages: en