title: Diagnostics of underwater electrical wire explosion through a time- and space-resolved hard x-ray source.
abstract: A time- and space-resolved hard x-ray source was developed as a diagnostic tool for imaging underwater exploding wires. A ~4 ns width pulse of hard x-rays with energies of up to 100 keV was obtained from the discharge in a vacuum diode consisting of point-shaped tungsten electrodes. To improve contrast and image quality, an external pulsed magnetic field produced by Helmholtz coils was used. High resolution x-ray images of an underwater exploding wire were obtained using a sensitive x-ray CCD detector, and were compared to optical fast framing images. Future developments and application of this diagnostic technique are discussed.
authors.affiliation: Physics Department, Technion, Haifa 32000, Israel.
authors.forename: D
authors.initials: D
authors.lastname: Sheftman
authors.forename: D
authors.initials: D
authors.lastname: Shafer
authors.forename: S
authors.initials: S
authors.lastname: Efimov
authors.forename: K
authors.initials: K
authors.lastname: Gruzinsky
authors.forename: S
authors.initials: S
authors.lastname: Gleizer
authors.forename: Ya E
authors.initials: YE
authors.lastname: Krasik