Measurement of hypersonic velocities resulting from the laser-induced breakdown of aerosols using an excimer laser imaging system

S. A. Schaub, D. R. Alexander, D. E. Poulain, J. P. Barton

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Abstract

In this article we describe a dual-pulse excimer-laser-based imaging system used in the determination of ejected material velocities resulting from the interaction of KrF laser radiation (λ = 248 nm, pulse width FWHM=17 ns, I≈1011 W/cm2) with 20-μm aluminum particles under vacuum (P = 10-5 Torr) conditions. Material velocities measured 200-400 ns after arrival of the incident pulse ranged from 450 to 1200 m/s.

Original languageEnglish (US)
Pages (from-to)3688-3691
Number of pages4
JournalReview of Scientific Instruments
Volume60
Issue number12
DOIs
Publication statusPublished - Dec 1 1989

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ASJC Scopus subject areas

  • Instrumentation

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