Fallout from the Nuclear Explosion of 16 October 1964

Abstract
Measurements of the concentrations of 20 fission products in a sample of rain collected at Fayetteville, Arkansas, on 26 October 1964, yielded two "mass-yield" curves; one for fresh debris from the Chinese nuclear explosion, and another for older debris. The former curve resembled the mass-yield curve for neutron-induced fission of uranium-235.