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Projet FALSTAFF: Mesures fragments de fission - gedepeon

Projet FALSTAFF: Mesures fragments de fission - gedepeon

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Mesure <strong>de</strong>s masses initiales et finales, <strong>de</strong> la charge et<br />

<strong>de</strong> l’énergie cinétique <strong>de</strong>s <strong>fragments</strong> en coïnci<strong>de</strong>nce<br />

Détermination <strong>de</strong> la multiplicité <strong>de</strong> neutrons<br />

SED SED IC<br />

frag.<br />

Cible / 252Cf<br />

e ‐ e ‐<br />

mesure <strong>de</strong> la vitesse <strong>de</strong> <strong>fragments</strong><br />

mesure <strong>de</strong> l’énergie <strong>de</strong>s <strong>fragments</strong><br />

mesure <strong>de</strong> la charge <strong>de</strong>s <strong>fragments</strong> légers<br />

résolution en masse ~ 1 uma<br />

résolution en charge ~ Z < 45<br />

multiplicité neutron ~ 1 – 2 uma<br />

temps <strong>de</strong> vol ~ 250 ps<br />

résolution spatiale ~ 2.5 mm<br />

résolution en énergie ~ 1%<br />

Masse initiale & finale<br />

très forte<br />

contrainte expérimentale<br />

238, 235<br />

U + 233 U, 239 Pu, 237 Np<br />

GEDEPEON Bilan 2012<br />

2

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