| Abstract: | Results on measurements of excess heat power, impurity nuclides yield, gamma and X-ray emission in experiments with high-current glow discharge (GD) in D2, Xe, and Kr are presented. The cathode samples used in the experiments were made of Pd, V, Nb, and Ta. In experiments with Pd cathode samples in D2 GD, the recorded excess heat power amounted to 10–15 W and the heat efficiency (the output heat power in relation to the input electric power) was up to 130%. Excess heat power up to 5 W, and efficiency up to 150% was recorded for deuterium pre-charged Pd cathode samples in Xe and Kr discharges. Production of impurity nuclides with atomic masses less than and more than that of the cathode material was registered. Considerable deviation from the natural isotopic ratio was observed for the registered elemental impurities. X-ray emission was measured in H2, D2, Ar, Xe, and Kr GD during the GD operation and after the GD current switch off (up to several hours afterward) with the help of thermo-luminescent detectors (TLD), X-ray film and scintillator detectors with photomultipliers. The energy of recorded X-ray emission distributed in the range 0.5–10 keV. Weak gamma-emission (up to 1000 events per second) was registered in certain experimental conditions. The X-ray spectra include both (bands of) the continuum and multiple lines with energies ranging 0.1–3.0 MeV. The possible mechanism for production of the excess heat power, elemental impurities, gamma, and X-ray emission is also considered. |
