Electric lamp and discharge devices: systems – Discharge device load with fluent material supply to the... – Plasma generating
Patent
1992-10-20
1994-08-09
Pascal, Robert J.
Electric lamp and discharge devices: systems
Discharge device load with fluent material supply to the...
Plasma generating
31511121, 315344, 31323131, H01J 724
Patent
active
053369750
ABSTRACT:
A CROSSATRON plasma switch has a peak current capability in excess of 10kA and a switching speed of at least 1.times.10.sup.11 A/sec, making it compatible with the requirements of excimer and CO.sub.2 gas laser switches, and yet is small enough to be mechanically integrated with such lasers. It employs an axially corrugated cathode with a body diameter on the order of 10 cm and shallow corrugations whose depths are about 1.0-1.5 times the distance between corrugations, together with a reduced diameter anode (of about 2.5 cm diameter for an excimer laser and about 1.25 cm diameter for a CO.sub.2 laser), to obtain a plasma volume of about 50-100 cm.sup.3 for rapid switching. A magnet assembly around the cathode uses only two stacked magnets, but has an overall greater axial length and surface magnetic strength than in prior switches. The magnet design produces a high field strength near the cathode, but without a significant extension of the field into the anode region.
REFERENCES:
patent: 4247804 (1981-01-01), Harvey
patent: 4367553 (1983-01-01), Neracher
patent: 4596945 (1986-06-01), Schumacher et al.
patent: 5019752 (1991-05-01), Schumacher
patent: 5132597 (1992-07-01), Goebel et al.
Cobine, "Thyratron", McGraw-Hill Encyclopedia of Electronics and Computers, McGraw-Hill Inc., 1984, pp. 855-856.
Goebel Dan M.
Poeschel Robert L.
Watkins Ronnie M.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
Pascal Robert J.
Philogene Haissa
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