Oscillations in the TP-D Machine

Abstract

Experimental results on oscillations in the plasma of the TP-D machine are described. The plasma is produced with a modified Duoplasmatron and diffused out along the magnetic line of force. With stronger magnetic field a “left-handed” rotation of the plasma column appears in its outer region, where an electron oscillation is excited and this causes an anomalous increase in the diffusion coefficient of electrons. Also the high frequency component of the electron oscillation is excited by the electron beam with a large spread in the beam velocity.