Reply To: Animated nuclear reaction.

[Axil]

Brian H wrote:

Recently, in a previous post I have suggested a series of focus fusion experiments that use light water and heavy water as the fissile medium in the FF reactor in preference to deuterium or boron gas.

The density of deuterium available in heavy water would be orders of magnitude greater than those availed in gas.

Another type of experiment would include boron nano powder suspended in water to increase the density of boron available for plasmoid fusion. Cavitation chemistry has demonstrated that metal nano-powders will vaporize in plasma.

These experiments would produce collapsing cavitation bubbles whose pressure profile is high as follows:

“Shock wave emission upon the collapse of a cavitation bubble attached to a rigid wall was investigated using high-speed photography with 200 million frames/s and 5 ns exposure time. At a distance of 68 μm from the bubble wall, the shock pressure is 1.3 ± 0.3 GPa. The shock pressure decays proportionally to r exp−1.5 with increasing distance from the bubble. An estimation of the peak pressure at the bubble wall reveals a pressure of about 8 GPa. A major part of the shock wave energy is dissipated within the first 100 μm from the bubble wall.”

It is reasonable to expect that the internal maximum pressure inside a free floating cavitation bubble is somewhat greater than 8 GPa. In comparison, the maximum pressure applied in a diamond anvil is only about 1 or 2 GPa.

If a FF plasmoid can be produced inside a collapsing cavitation bubble, I would be interested in the fusion results at 8 GPa pressure compared to those produced in a gas at ambient pressure.

In all these suggested experiments, fusion based transmutation should be determined through spectroscopy.

AFAIK, the cavitation-fusion experiments have failed because the energy dissipation is so fast that no actual fusion events occur. The Gods of Chaos are interfering.

IMHO, water is a poor cavitation medium. Mercury is about 100,000 times better and molten fluoride salt is even better than that. There are cavitation methods using oil that are reported to result in over unity energy gain. So in summation, it all depends.