Sorry if I am still not seeing the major differences. The “SF” in BSF DOES actually stand for sonofusion. It appears to be a different approach, to the same concept.

No, the accronym BSF stands for Bubble-confined Sonoluminescent-laser Fusion, as spelled out in patent appl#: 12/803901, not Bubble SonoFusion. The concepts overlap, but there are major differences. If I changed the name to Matter-confined Laser Fusion (MLF) would that eliminate your objection?

And yes, Professor Andrea Prosperetti of Johns Hopkins HAS indeed done some work on Laser ignited Sono bubble fusion. He concluded that it would NOT work.

As I said before, those links are irrelevent. Prosperetti uses a laser to create a vapor pocket inside of a tiny liquid filled tube. The focus of the laser is located a small distance away from the end of the tube, where surface tension creates a concave gas/liquid interface. The laser heats the liquid until a small vapor pocket forms. When the vapor pocket expands, it creates pressure in the surrounding liquid, which causes the concave geometry of the liquid to accelerate inward, similar to the way a “shaped charge” produces a high-speed jet of liquid metal. In summary, the article is about ink jet technology, not fusion.

One of the major advantages that BSF has over, what you are calling Prosperetti’s sonofusion, is that BSF’s laser impinges directly on the fuel, heating it to around 90eV (1,000,000 K) prior to compressing it. Laser compression, by the method of differential ionization, begins when material that is located at the periphery of the bubble is ionized, causing it to expand into the fuel, compressing and heating the fuel, until pressure (temperature and particle density) equalize. Note – the ideal ignition temperature for BSF is only 1.6 keV, much lower than the 4.3 keV of ICF.

This was all covered, in greater detail, in the patent application:

[0319] When two adjoining regions of “condensed matter” (solid or liquid) of different electron density are suddenly heated to the same extremely high temperature (high enough to fully ionize them) what will happen?

[0320] Since the temperature is the same, the radiation pressure in both regions will be the same also. The contribution of the particle pressure to the total pressure will be proportional to the particle density however. Initially, in the un-ionized state, the particle densities were about the same. Once the atoms become ionized, the particle densities can change dramatically with far more electrons becoming available from dense high-Z materials, compared to low density, low-Z materials. Even if the system is radiation dominated, with the radiation pressure far exceeding the particle pressures, the total pressures in the regions will not balance. The pressure differential will cause the high-Z material to expand, compressing the low-Z material. This type of compression is even more pronounced when low-Z gas is surrounded by high-Z condensed matter.

[0321] The process of ionization compression can be very important in a system, like BSF, where a high-Z coolant directly contacts low-Z fuel. In fact, it is interesting and relevant to note that the main effort Soviet scientists made towards an H-bomb was the “Layer Cake” or Sloika design. It employed Vitali Ginzburn’s idea of using solid lithium-deuteride fuel and Andrei Sakharov’s notion of ionization compression of the fuel…

…
But it is still very much in it’s infancy, and with all the stigma from Taleyarkhan, the physicist that has been found guilty of misconduct… you
have to prove more than the average scientist to gain acceptance for your hypothesis.

I asked you to stop, but you continue to imply that BSF has connections with Taleyarkhan and sonofusion. Why?