Neutron emission in the D+D fusion in cooled palladium at 100 keV bombarding energy

D+D and D+T reactions are among the nuclear processes responsible for the production of light elements in nucleosynthesis. Understanding of nuclear fusion reaction rates of these reactions are essential for the development of neutron sources, fusion-fission hybrid systems and for the advancement of nuclear technologies for controlled fusion. Though bare D+D reaction is very well studied and established, large enhancement of the reaction yields observed for this nuclear reaction proceeding in a number of metallic targets in several recent experiments have evoked considerable attention worldwide. Though the Coulomb barrier for pure D + D fusion is ∼200 keV, detectable reaction rate may occur even at much lower kinetic energies ∼10-15 keV if there is enhancement of fusion due to Coulomb screening. Further, the host material temperature dependence of the enhancement factor for the D+D reaction is also an important topic being investigated recently