FLUCTUATION MEASUREMENTS IN WENDELSTEIN VII-A
This is a report on measurements of coherent 2 mm microwave scattering on the W VII-A plasma under various stellarator operation conditions. The scattering diagnostic system as well as experimental results have been already described. The accessible plasma fluctuation range is 60 <or= f(kHz) <or= 5500, 8 <= k-perpendicular(cm**-1) <= 35 and k-u<=1.5. Experimental results are presented on the following topics: - Frequency spectra and amplitudes of plasma fluctuations in typical stellarator operation phases as: - OH discharges, - quasi-currentfree, NB heated plasmas, - transition region between OH + to quasi-currentfree plasmas, - K-perpendicular spectrum of plasma fluctuations in the current-free, NB + sustained plasma state and - fluctuations close to and at rational rotation transform.
Bibliographic Reference: 5TH INTERNATIONAL WORKSHOP ON STELLARATORS, SCHLOSS RINGBERG, BAVARIA (GERMANY), SEPT. 24-28, 1984 VOL. II, PP. 437-448, EUR 9618 EN (1985) FS, VOL. I AND VOL. II, 787 P., BFR 3500 (BOTH VOLUMES), EUROFFICE, LUXEMBOURG, POB 1003
Record Number: 1989124120600 / Last updated on: 1987-01-01
Available languages: en