Comparative Study of Spontaneous-Fission Characteristics of 252No and 254No Isotopes

AbstractSpontaneous fissions of the252No and254No nobelium isotopes have been studied in a series of experiments with the SHELS separator. These isotopes are produced by colliding a beam of48Ca ions from the U-400 cyclotron with the206Pb and208Pb targets. The measured characteristics of the252No and254No spontaneous fissions include their half-lives, total kinetic energies of fission fragments, and prompt-neutron multiplicities. The average number of neutrons per254No spontaneous-fission act is measured for the first time as 4.88 ± 0.53.

Source: Physics of Particles and Nuclei Letters - July 1, 2021 Category: Physics Source Type: research