Drift-Resonant Fluctuations Observed in CTX

The Collisionless Terrella Experiment, or CTX, consists of a large vacuum vessel, a strong electromagnet, and a microwave power source, used to create and heat a plasma confined to a dipole magnetic field. Electron-cyclotron-resonance-heating, ECRH, is used to create an "artificial" radiation belt.

Below, a time-frequency spectrogram illustrates the complex waves that are excited in CTX. When the wave-spectrum satisfies the conditions for chaos, energetic electrons are ejected radially from the dipole magnetic trap.

Professor Michael E. Mauel
Department of Applied Physics
Columbia University
Room 210 S. W. Mudd Building
New York, NY 10027 U.S.A.

Phone: (212) 854-4455
Fax: (212) 854-8257

Email: mauel@columbia.edu

Last Update: September 4, 1995