From Taleyarkhan: "Video of Pu-Be isotope neutron source nucleated nuclear cavitation experiment with acetone. Filmed at Oak Ridge National Laboratory, Y-12 Nuclear Weapons Plant, Bldg. 9204-1, Rm. 113, Oak Ridge, TN, USA.
Shows what the nuclear cavitation process requires in terms of shape and rate of bubble cluster formation, implosion to disappearance, transient behavior of bubble clusters. Note: shapes must be spherical, and the rate is about 25 to 35 clusters per second. This is compared with the UCLA movie from Putterman/Suslick and makes clear that the so-called "mirror" experiment was fundamentally flawed.
Clip was shown at the Nashville Intl. Conf. of the Acoustics Society of America, April 28, 2003, which was organized by Larry Crum and attended by Putterman, Suslick. They knew even back then what was required.
The "Sound of Neutrons" video clip is mesmerizing if you contemplate the fact that a mere neutron (of mass ~10^-27 kg as close to zero mass as one may get) produces such a HUGE macro-mechanical effect that can be seen and heard and furthermore, serves as a reminder of why and how thermonuclear bombs work as they do we know for sure."