X-ray, heat excess and He-4 in the D/Pd system

The energy balance between heat excess and He-4 in the gas phase has been found to be reasonably satisfied even if the low levels of He-4 do not give the necessary confidence to state definitely that we are dealing with the fusion of deuterons to give He-4. In the melted cathode, the data of which are reported, no He-4 was found at the achieved sensitivity. X-ray film, positioned at 50 mm from the cell, roughly gave the image of the cathode through spots. Extended considerations have been made to explain this evidence on the basis of the bundle nature of the cathode. From these considerations, the energy of the radiation and the total energy associated to it have been estimated, as 89 keV and 12 kJ, respectively. This value is approximate to 0.5% of the energy measured by calorimetry in the same interval of time. The highest values of energy and excess power are 8.3 MJ and 10 W, respectively. (C) 1997 Elsevier Science S.A.