NEGATIVE RESULT OF AN EXPERIMENT AIMED AT VERIFYING A REPORT ON COLD NUCLEAR-FUSION IN SYSTEMS OF THE NAXWO3 (D D-T) TYPE/

The results of an experiment aimed at verifying the conclusions drawn in the studies that were performed at the Institute of Hi,oh-Temperatu re Electrochemistry (IHE, Yekaterinburg) and which report the observat ion of neutron emission due to low-temperature dd fusion in NaxWO3/deu terium systems are presented. Within statistical errors, the excess of the neutron yield above the background level is not observed in our e xperiment for the interaction of deuterium and deuterium-tritium mixtu re with oxide tungsten bronze. The hypothesis that hot dr fusion is po ssible in such systems is not confirmed either. The results of this st udy cast some doubt on the validity of the conclusions drawn in the ME reports. At a 90% confidence level, an upper limit on the intensity I -n, of a hypothetical neutron source associated with dd and dr fusion in the single crystals of oxide tungsten bronze is estimated to be 5 x 10(-3) s(-1).