Magnbeic Recording of Neutron Cross-Section Data from an Undergrolund Nuclear Explosive Source

A high-resolution magnetic data recording system has been successfully used as part of the Los Alamos program of time-of-flight neutron cross-section measurements that use an underground nuclear explosion source. The data received were recorded in frequency modulation form on a rotating hard-surfaced magnetic disc. This is a novel way of recording these data. Magnetic recording facilitates electronic digitizing of the data, since there is no need for time-consuming film reading.