XENON YIELDS IN THE FISSION OF HEAVY ELEMENTS BY MEDIUM-ENERGY PROTONS

Abstract

Independent yields for ¹³³Xe and ¹³⁵Xe and cumulative yields for ¹³³I and ¹³⁵I in fission of ²³³U, ²³⁵U, ²³⁸U, and ²³²Th with protons of energies 20–85 MeV were measured. Values of Z_p, the most probable charge, were obtained by two different methods. The behavior of Z_p for ²³⁶U and ²³³U differed considerably from that of ²³⁸U and ²³²Th. Total chain yields were obtained for A = 133 and A = 13.5.