Investigation of single-bubble sonoluminescence produced by acoustic cavitation of D2O

NUCL 149

Kenneth C McGill Sr.1, Ralph H. France III1, Curtis Harris1, James Black Jr.1, Suzanna Williams1, and Caroline A. Loglisci2. (1) Chemistry & Physics, Georgia College & State University, CBX 82, GC&SU, Milledgeville, GA 31061, (2) Physics, University of Connecticut, 2152 Hillside Rd., Unit 3046, Storrs, CT 06269-3046
The acoustic cavitation of D2O was measured using an ocean optics ultra violet spectrometer. Walls of a container were constructed for the D2O using 2mm thick by 6cm long quartz cylindrical cavity. The upper and lower transducers were gold plated piezoelectric quarts crystals. Compressing a Teflon seal between the piezoelectric crystal and quartz tube created a watertight seal. Argon was bubbled through a solution of D2O to replace any other existing dissolved gasses, as single bubble sonoluminescence is known to work best with dissolved noble gasses. The container was immersed in the D2O and sealed using a clamp. A standing wave in the cavity causes cavitations of the fluid to create bubbles. Once the bubble collapses the emitted light spectrum was measured using Ocean Optic ultraviolet spectrometer. By measuring the emitted light spectrum a close approximation of the actual temperature can be obtained, however, as water is opaque to ultraviolet light, this may provide only a lower limit. If the temperature is high enough (~ few MK) fusion neutrons may be emitted, which will be measured at a future experiment panned to take place in collaboration with Yale University.
 

General Topics in Nuclear Chemistry
1:30 PM-3:55 PM, Thursday, March 27, 2003 Convention Center -- Room 391, Oral

Sci-Mix
8:00 PM-10:00 PM, Monday, March 24, 2003 Convention Center -- Hall G, Sci-Mix

Division of Nuclear Chemistry & Technology
The 225th ACS National Meeting, New Orleans, LA, March 23-27, 2003