Cavitation in Liquids Demonstrated by Ultrashort-Exposure Radiography

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Science  01 Mar 1968:
Vol. 159, Issue 3818, pp. 975-976
DOI: 10.1126/science.159.3818.975


Using a field-emission x-ray tube, giving a much shorter pulse of rays than does conventional apparatus, we have demonstrated around a water jet the presence of a toroidal cavity that could not be detected visually. One advantage of this method of demonstrating cavitation is that it may be used with fluids and vessels that are opaque to light.