Title :
A 0.1 TW gas-breakdown plasma-anode ion diode
Author :
Dunning, Alex ; Greenly, J.B. ; Rondeau
Author_Institution :
Lab. of Plasma Studies, Cornell Univ., Ithaca, NY, USA
Abstract :
Summary Form only given, as follows. A magnetically insulated extraction-geometry ion diode using inductive breakdown of a gas layer to produce a magnetically confined anode plasma has been successfully operated on the LONGSHOT pulser. The pulse parameters were 120 kV, 30 kA, and 500 ns, and improved on all other characteristics except beam divergence. The plasma anode has now been integrated into a similar diode to operate on the Neptune pulser, to produce pulses of 700 kV, 3 Omega , 100 ns, and >0.1 TW. The goal is to investigate the scaling of this diode to the higher voltage and to current density above 0.5 kA/cm/sup 2/. The major scaling issue is whether good control of the anode surface shape and position, and the resulting ion canonical momentum and divergence, can be maintained. The beam from this diode will be used to form diamagnetic ion rings, and will allow good diagnosis of beam quality.<>
Keywords :
magnetic traps; plasma density; plasma diodes; plasma transport processes; plasma-beam interactions; 0.1 TW; 1 mus; 100 ns; 120 kV; 30 kA; 700 kV; LONGSHOT pulser; Neptune pulser; anode position; anode surface shape; beam divergence; beam quality; current density; diamagnetic ion rings; dielectric anode; divergence; gas-breakdown plasma-anode ion diode; impedance; inductive breakdown; ion canonical momentum; ion output; magnetically confined anode plasma; magnetically insulated extraction-geometry ion diode; Charge carrier processes; Diodes; Magnetic confinement; Particle collisions; Plasma devices; Plasma properties;
Conference_Titel :
Plasma Science, 1989. IEEE Conference Record - Abstracts., 1989 IEEE International Conference on
Conference_Location :
Buffalo, NY, USA
DOI :
10.1109/PLASMA.1989.166043
