When bubble cavitation becomes sonofusion

ENVR 34

Roger S. Stringham, firstgate@earthlink.net, First Gate Energies, 4922 Akai Pl, Kilauea, HI 96754
Twenty years have passed since the headlines of a unique energy making process, cold fusion. Immediately following, Photosonication Consulting's heat effects on partially melted and discolored Pd foil were noted in D2O experiments. Three years later, with an improved device, EQuest Science continued experiments. Results: standing wave patterns, target foil surface ejecta sites, excess heat from calorimetric measurements, and helium and tritium mass spectra detection. In 1998 First Gate Energies was started and moved from the 20 and 40 KHz massive devices to 1.6 MHz 20 gm devices. These produced about the same excess heat but had 0.0001 the mass and a much-improved performance over the higher mass devices. This cavitation process, sonofusion, shows none of the expected radiation. This can be explained by the very high transient, picosecond, densities experimentally produced. A path that explains the experimental sonofusion results is supported by parallel research in hot inertial confined fusion.