Constraints on energetic particles in the Fleischmann-Pons experiment

In recent Fleischmann–Pons experiments carried out by different groups, a thermal signal is seen indicative of excess energy production of a magnitude much greater than can be accounted for by chemistry. Correlated with the excess heat appears to be 4He, with the associated energy near 24 MeV per helium atom. In nuclear reactions, the energy produced is expressed through the kinetic energy of the products; hence, it would be natural to assume that some of the reaction energy ends up as kinetic energy of the 4He nucleus. Depending on the energy that the helium nucleus is born with, it will result in radiation (such as neutrons or x-rays) that can be seen outside of the cell. We have computed estimates of the expected neutron and x-ray emission as a function of helium energy and compared the results with upper limits taken from experiments. Experimental results with upper limits of neutron emission between 0.008 and 0.8 n/J are found to correspond to upper limits in alpha energy between 6.2 and 20.2 keV

Energy balance during elettrolysis and cavitation experiments

Literature presents several cases of nuclear anomalies occurring in condensed matter, during fracture of solids, cavitation of liquids, and electrolysis. Previous papers by the authors have recently shown that, on the surface of the electrodes exposed to electrolysis, visible cracks and compositional changes are strictly related to nuclear particle emissions. In particular, a mechanical interpretation of the phenomenon was provided accounting the reactions due to hydrogen embrittlement effect. On the other hand, the authors have recently reported that appreciable neutron emissions far from the background level take place in hydrodynamic cavitation. In the present paper, specific measurements have been conducted during two experimental campaigns in order to evaluate the energy balance and the heat generation and its possible correlation to the same nuclear origin during both electrolysis and cavitation phenomena