Laser interferometry of acoustic fields generated by high-current electron beams in solids

V. I. Bykov, A. A. Bespal'ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have developed a method for detecting acoustic fields in solids irradiated with dense electron beams. The method is based on laser Michelson interferometry. The electron source is a high-current DZhIN electron accelerator. The detection system features a short baseline Michelson interferometer located inside the experimental chamber with the sample, a stabilized initial beam pathlength difference within the interferometer, high temporal resolution, an analog-to-digital converter with output to a personal computer, and a program for reducing the interferometer data. We can measure both long pulses with minimum displacements of 10-10 m and durations of 10-8 sec, and flexure waves with large-amplitude displacements of 10-5 m and oscillation periods of 10-3 sec. We present results from studies of flexure waves in thin plates and rods of copper, silicon, alkali-halide crystals, quartz glasses, and D16T aluminum alloy irradiated by nanosecond high-density electron beams.

Original languageEnglish
Pages (from-to)1095-1104
Number of pages10
JournalRussian Physics Journal
Volume40
Issue number11
DOIs
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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