The Design and Operation of a Compact, Ultra Fast Closing Valve for Debris Mitigation
Abstract
Presently, radiation simulators utilizing plasma radiation sources (PRS) generate large amounts of undesirable debris which can potentially damage the objects under test. The Ultra Fast Closing Valve (UFCV) is a fast acting foil shutter (cross-sectional area = 1 cm X 4 cm) which erects a physical barrier to the slower moving debris after allowing the passage of x-ray photons. The UFCV consists of a metallic foil cassette which is imploded by an outer magnetic field generated by a fast capacitor discharge into a single turn loop. Typical capacitor bank charging voltages range from 15 to 25 kV, with corresponding currents of approximately 80 to 130 kA. Valve closure times as fast as 27 microseconds have been observed. The design and construction of the unit are presented along with the results of measurements of valve closure velocities.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1993
- Accession Number
- ADA639480
Entities
People
- David K. Abe
- James R. Golden
- R. Schneider
- T. G. Johnson
Organizations
- Naval Surface Warfare Center