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Abstract

Simultaneous measurements of soft X-ray emission and density fluctuations in TFR plasmas show a strong enhancement of fluctuations during the successive phases of minor disruptions. In a hard minor disruption the time evolution of the density fluctuation enhancement is related to the four phases, which clearly exhibit separate high and low frequency components. The interpretation proposes bursts of drift wave turbulence, alternating with bursts of low frequency magnetic relaxation turbulence. The last phase of a hard minor disruption shows a high level of low frequency magnetic fluctuations which continue for some time after the event.

Additional information

Authors: ANDREOLETTI J, CEA Saint-Paul-lez-Durance (FR);LAVIRON C, CEA Saint-Paul-lez-Durance (FR);OLIVAIN J, CEA Saint-Paul-lez-Durance (FR);PECQUET A L, CEA Saint-Paul-lez-Durance (FR);GERVAIS F, PMI Ecole Polytechnique, Palaiseau Cedex (FR);GRESILLON D, PMI Ecole Polytechnique, Palaiseau Cedex (FR);HENNEQUIN P, PMI Ecole Polytechnique, Palaiseau Cedex (FR);QUEMENEUR A, PMI Ecole Polytechnique, Palaiseau Cedex (FR);TRUC A, PMI Ecole Polytechnique, Palaiseau Cedex (FR)
Bibliographic Reference: Paper presented: International Conference on Plasma Physics, New-Delhi (IN), Nov. 22-28, 1989
Availability: Available from (1) as Paper EN 34997 ORA
Record Number: 198911228 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en