Measurements of the Mass and Isotopic Yields of the 233U(nth,f) Reaction by the Lohengrin Spectrometer
Résumé
Analysis and results of the measurements of the independent isotopic and mass fission yields
for the 233U(nth,f) reaction are presented, which were performed at the Lohengrin recoil mass
spectrometer in ILL. The spectrometer separates the fission products according to their mass to
ion charge ratio and kinetic energy to ion charge ratio. Mass yields were obtained by means of
an ionisation chamber after separation by the spectrometer. Isotopic yields were determined by
placing two high-purity Germanium clover detectors downstream the spectrometer. An innovative
analysis method developed for the Lohengrin spectrometer is presented, from which the final results
are independent from the previous evaluations, which is usually not the case.