Fission Yields of Over 40 Stable and Long-Lived Fission Products for Thermal Neutron Fissioned 233U, 235U, 239Pu, and 241Pu and Fast Reactor Fissioned 235U and 239Pu

Abstract

The thermal fission yields of 43 mass chains for ²³³U, ²³⁵U, ²³⁹Pu, and ²⁴¹Pu and the fast reactor fission yields of 45 mass chains for ²³⁵U and ²³⁹Pu have been measured with a relative standard deviation of 1 to 2%. The data were obtained mainly by measuring long-lived and stable fission products by the technique of isotope dilution mass spectrometry. This paper has two sections: the first reports the fission yields, the second describes the chemical analysis techniques for the fission products.