ASA 124th Meeting New Orleans 1992 October

5aPAa4. Characteristics of sonoluminescence at ambient temperatures near 0 (degrees)C.

Bradley P. Barber

Robert Hiller

Seth Putterman

Phys. Dept., Univ. of California, Los Angeles, CA 90024

At ambient water temperatures near 0 (degrees)C, the intensity of sonoluminescence (SL) increases by over a factor of 10. This talk reports on efforts to understand and measure this effect. Issues to be discussed include the solubility of air in water as well as the flash width, quality factor, acoustic pressure, pulse height distribution, and synchronicity of these bright SL pulses. [Work supported by the US DOE Division of Advanced Energy Projects.]