Development and test of edge plasma diagnostics at the PSI-1 plasma generator
In the plasma generator PSI-1 (a stationary magnetically stabilised high current arc) a steady state plasma is generated between a cathode and a hollow anode. The cathode-anode space is extended by a drift chamber into which the quasi-neutral plasma expands along the magnetic field lines and is limited by a target plate. Experiments have been carried out in argon and hydrogen with discharge currents of up to 1000 A. A helium beam diagnostic was tested and evaluated at PSI for electron temperatures of 5 - 50 eV. Optimising the beam source and choosing a low helium flux rate allowed a high spatial resolution to be obtained. The stationary PSI plasma offered good conditions for testing and comparing different beam sources to form a nearly monoenergetic beam with low divergence.
Bibliographic Reference: Article: 21st EPS Conference on Controlled Fusion and Plasma Physics, Montpellier, 27 June - 1 July, 1994, Vol. 18B (1994) Part III, pp. 1328-1331
Record Number: 199510183 / Last updated on: 1995-02-07
Original language: en
Available languages: en