High resolution measurement of fragment mass-charge-kinetic energy correlations in the cold fragmentation region of thermal fission of 235U

; fragments keV, la séparation des masses est et, séparation des charges est Une discussion de l’évolution de la distribution des charges en fonction de cinétique totale des fragments pour de masses 132/104. Abstract. 2014 The performance of a back-to-back gridded ionization chamber containing an extremely thin fissile target has been investigated for studying the cold fragmentation phenomenon : primary fragment kinetic energy is measured with a resolution much better than 300 keV; mass separation is total and for each mass, a good charge separation is obtained. The evolution of the charge distribution as a function of the fragments’ total kinetic energy is discussed for the mass-ratio 132/104.