Induction Cell Breakdown Experiments for the Dual-Axis Radiographic Hydrotest (DARHT) Facility
Abstract
Linear induction cells for the Dual-Axis Radiographic Hydrotest (DARHT) Facility have been tested to determine their high-voltage breakdown characteristics. A variety of full scale insulators were tested both in actual cells and in fixtures simulating induction cells. All insulators were constructed using cross-1 inked polystyrene (Rexolite). High-voltage pulses up to 550 kV were applied to the insulators using both a 60-ns pulse Blumlein and a 200-ns pulse cable Marx. Two different vacuum gaps were used in these tests, 1. 46 and 1.91 cm. The tests were performed at various vacuum levels ranging from 1 x 10-6 to 5 x 10-8 torr. Breakdown tests of the insulators were also performed with an electron beam generated in the vacuum gap through the use of a velvet emitter. The gap voltage and current were measured using calibrated E-dot and B-dot probes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA638086
Entities
People
- D. C. Moir
- D. C. Rader
- D. J. Liska
- G. A. Barnes
- G. Keel
- L. M. Earley
- S. A. Eversole
- T. J. Kauppila
- W. Mark Parsons
Organizations
- Los Alamos National Laboratory