Abstract
Measurements in some detail have been made on carbon and beryllium, and a few measurements on other elements. On the Born approximation, the results can be analyzed to give the momentum distribution of the picked-up neutron, and consequently some information about its wave function. The probable validity of this approximation at 100 Mev is examined, and seems reasonably good. The experimental results for carbon and for the pickup of a "tightly-bound" neutron from beryllium show strong high-momentum components indicating that the nuclear wave function is not strictly of independent-particle nature but that strong two-body interactions are operative inside the nucleus. There is also some indication of alpha-particle substructure in C and Be.