Based on the theory of hydrogen solution in palladium in hydrogen/palladium system and the theory of normal temperature nuclear fusion material and selective resonant tunneling model, some experiment for was carried out producing the "excess heat" and "heat after death" phenomena in ambient condition. Under the conditions hydrogen gas can be easily loading into Pd lattice. At a temperature range of the ambient temperature~400 C and 100pa~1000pa pressure we found the optimal condition to improve the loading ratio in palladium wire by gas-loading method. The loading ratio was climbed to 0.6 in a relatively short time. The He-Ne laser with the wavelength of 632.8nm,when was interacting on the Pd wire, which loading ratio is 0.6,we gain the apparent "excess heat" by the excitation. The SIMS showed that the result of the concentration and the abundance ratio of Li-7 and Li-6 in the palladium wire were changed.it implied that the laser triggering on a Pd wire with a low gas-loading ratio may have produced the nuclear process. |