The Mechanism of Molecule-Formation by Nuclear Fission and Subsequent Processes in Solid Mixtures

Abstract

Summary Experiments at temperatures from 4° K up to 500° K show that, at least in the case of <xxx>-formation from uranium fission products and a suitable target Compound in the solid phase, i. e. <xxx> neither impact substitution by primary fission recoil nor unstable intermediate products nor normal chemical reactions nor thermal radical reaction nor radiation induced reactions play any part. The only origin of molecule formation is the β-decayof the fission product atoms and the role of primary fission recoil is only to transport the atoms inside the admixed target-compound. Furthermore it is shown by using target-compounds with different central atoms for substitution, i.e. Fe(C5H5)2, Ru(C5H5)2, Os(C5H5)2, that the molecule formation process is not a high energy recoil process but occurs in an energy range where chemical bond-strengths of the target material are significant.