High-voltage technology for the LASL implosion-heating experiment
The implosion-heating power supply uses four 125-kV generators in series. Each generator consists of a fast 125-kV pulse-forming network made up of capacitors attached to a 1m-wide parallel-plate transmission line which is fed through multiple cables from a 2.5- mu F, 0.5- mu H Marx bank charged to 180 kV. To simplify construction it was decided to do without oil or water for high- voltage insulation and grading. The developments described here are: (1) a low- inductance connection between the 125-kV capacitors and the parallel-plate transmission line using an elastomer gasket capable of holding 200 kV; (2) edge flashover prevention by ballooning'' the sheet insulation, by which a 10-cm edge extension of insulation is capable of withstanding a 200-kV pulse for several microseconds; (3) using the edge flashover for over-voltage prevention; (4) grading of voltage along insulators with conducting plastic sheets to prevent flashover at the load switches and cable connections; and (51 capacitively graded insulating supports for the Marx banks. (auth)
- Research Organization:
- Los Alamos Scientific Lab., N.Mex. (USA)
- DOE Contract Number:
- W-7405-ENG-36
- NSA Number:
- NSA-29-014440
- OSTI ID:
- 4353522
- Report Number(s):
- LA-UR--73-1753; CONF-731114--38
- Country of Publication:
- United States
- Language:
- English
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*TOROIDAL THETA PINCH DEVICES-- PLASMA HEATING
ELECTRONIC EQUIPMENT
IMPLOSIONS
N70100 --Physics--Controlled Thermonuclear Research--Confinement & Heating
N70800* --Physics--Controlled Thermonuclear Research-- Thermonuclear Engineering & Equipment