Pd106 46 !Ca 40 20 þFe 56 26 þ10 neutrons ð5:1Þ According to reaction (5.1), the Pd decrement is counterbalanced by Ca and Fe increments by the following quantities: 10.8 and 15.1 %, for Ca and Fe, respectively. These variations may be accompanied by a neutron emissions corresponding to the remaining 2.7 % of the mass concentration (see also Figs. 5.3, 5.4, 5.5, and 5.6). The whole iron increment, according reaction (5.1), could be entirely considered as the starting element for the production of other elements. Hence, a second hypothesis can be proposed involving Fe as starting element and O as the product, together with alpha and neutron emissions: Fe56 26 !3O16 8 þHe 4 2 þ4 neutrons ð5:2Þ According to reaction (5.2), the iron depletion produces 12.9 % of oxygen with alpha particles (He) and neutron emissions. The total measured increment in oxygen after the experimental test is equal to 18.5 % (see Table 5.1). This quantity seems to be only partially explained by reaction (5.2). The remaining 5.6 % of O concentration could be explained considering other reactions involving Ca (product in reaction 5.1) as the starting element: Ca40 20 !O16 8 þMg 24 12 ð5:3Þ Fig. 5.3 Pd concentrations measured on 15 different points of the electrode surface, before (square) and after (triangle) the electrolysis; the average concentration M and the corresponding stand. dev. σ are reported Fig. 5.4 Fe concentrations measured on the electrode surface after the electrolysis; Iron has not been detected before the experiment 5 Hydrogen Embrittlement and “Cold Fusion” Effects in Palladium During Electrolysis Experiments 41
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