Carpenter discussed the discovery of the neutron and the demonstration of neutrons as waves, and described the spallation neutron production process. Cosmic-ray protons produce neutrons that are always around us. He depicted the first nuclear reactor, CP-1, and mentioned the demise of the A2R2 Project as the impetus for accelerator-based neutron sources. Additionally, he will discuss spallation neutrons and early spallation neutron sources: ZING-P, ZING-P’, IPNS; Graham’s moderator data and ING data; and, for fun, allude to the MTA.
An interview with Dr. Carpenter about his work and this talk is available here.