J. Robert Oppenheimer and Melba Phillips. “Note on the transmutation function for deuterons”, in Physical Review volume 48, September 15, 1935, pp 500-502, in the issue of pp 491-572. Original wrappers. Very Good copy. $175
“The Oppenheimer–Phillips process or strip reaction is a type of deuteron-induced nuclear reaction. In this process the neutron half of an energetic deuteron (a stable isotope of hydrogen with one proton and one neutron) fuses with a target nucleus, transmuting the target to a heavier isotope while ejecting a proton. An example is the nuclear transmutation of carbon-12 to carbon-13...The process allows a nuclear interaction to take place at lower energies than would be expected from a simple calculation of the Coulomb barrier between a deuteron and a target nucleus.”
Also in this issue:Enrico Fermi “On the recombination of Neutrons and Protons”, E.O. Lawrence et al “Transmutation Functions for Some Cases of Deutron-Induced Radioactivity”, and others.
From the abstract: “We consider the effect of the finite size and ready polarizability of the deuteron on the probability of transmutations involving the capture of the neutron. These have as a consequence that the Coulomb repulsion of the nucleus is less effective than for alpha-particles or protons, and that the corresponding transmutation functions increase less rapidly with deuteron energy. We treat the collision by the adiabatic approximation and obtain quantitative results for this energy dependence which are in good agreement with experiment.”