A compact pulse generator for radiographic source supply

N. A. Ratakhin, V. F. Fedushchak, A. A. Erfort, N. V. Zharova, N. A. Zhidkova, S. A. Chaikovskii, V. I. Oreshkin

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Radiography of short-living objects using X-pinch radiation is a new perspective direction in diagnostics developed at the P. N. Lebedev Institute of Physics. High spatial (up to a few tenth of a micrometer) and temporal resolutions (up to 0.1 ns) achieved with the use of the X pinch is extremely interesting to the researches of transient processes and substances in extreme states. The X pinch is produced by two or more crossed wires (with wire diameters up to 30 μm) exploded under the influence of current running through them. Scanning radiation is generated in a dense high-temperature plasma (up to several kiloelectron volts) arising in the region of wire crossing. Among the main requirements on the generator used to create the X pinch are current amplitudes of 150-300 kA and rates of current increase of 1-2 kA/ns. Up to now, these current pulse parameters have been provided only by bulky stationary generators weighing from 300 kg to several tons. In the present paper, a small-size (weighing 70 kg) high-current pulse generator (with current amplitude exceeding 300 kA and pulse rise time of 200 ns) of soft x-ray radiation from high-temperature X-pinch plasma is described.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalRussian Physics Journal
Volume50
Issue number2
DOIs
Publication statusPublished - 1 Feb 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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