High current plasma electron emitter
Open Access
- 1 February 1996
- journal article
- Published by IOP Publishing in Plasma Sources Science and Technology
- Vol. 5 (1) , 78-83
- https://doi.org/10.1088/0963-0252/5/1/010
Abstract
A high current plasma electron emitter based on a miniature plasma source has been developed. The emitting plasma is created by a pulsed high current gas discharge. The electron emission current is 1 kA at 300 V with a pulse duration of 10 ms. The prototype injector described in this paper will be used for a 20 kA electrostatic current injection experiment in the Madison symmetric torus reversed-field pinch. The source will be replicated in order to attain this total current requirement. The source has a simple design and has proven to be very reliable in operation. A high emission current, small size (3.7 cm in diameter) and low impurity generation make the source suitable for a variety of fusion and technological applications.Keywords
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