TARASOV, O.B.; DELAUNE, O.; FARGET, F.; MORRISSEY, D.J.; AMTHOR, A.M.; BASTIN, B.; BAZIN, D.; BLANK, B.; CACERES, L.; CHBIHI, A.; FERNÁNDEZ-DOMINGUEZ, B.; GRÉVY, S.; KAMALOU, O.; LUKYANOV, S.M.; MITTIG, W.; PEREIRA, J.; PERROT, L.; SAINT-LAURENT, M.G.; SAVAJOLS, H.; SHERRILL, B.M.; STODEL, C.; THOMAS, J.C.; VILLARI, A.C.

doi:10.1140/epja/i2018-12500-0

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TARASOV, O.B.

DELAUNE, O.
Grand Accélérateur National d'Ions Lourds [GANIL]

FARGET, F.
Grand Accélérateur National d'Ions Lourds [GANIL]

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Eur.Phys.J.A. 2018, vol. 54, n° 4, p. 66

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The systematic study of fission fragment yields under different initial conditions has provided valuable experimental data for benchmarking models of fission product yields. Nuclear reactions using inverse kinematics coupled to the use of a high-resolution spectrometer with good fragment identification are shown here to be a powerful tool to measure the inclusive isotopic yields of fission fragments. In-flight fusion-fission was used in this work to produce secondary beams of neutron-rich isotopes in the collisions of a$^{238}$U beam at 24 MeV/u with$^{9}$Be and$^{12}$C targets at GANIL using the LISE3 fragment separator. Unique identification of the A, Z, and atomic charge state, q, of fission products was attained with the $\Delta E$ -TKE-B $\rho$ -ToF measurement technique. Mass, and atomic number distributions are reported for the two reactions. The results show the importance of different reaction mechanisms in the two cases. The optimal target material for higher yields of neutron-rich high-Z isotopes produced in fusion-fission reactions as a function of projectile energy is discussed.< Réduire

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Fission fragment yields from heavy-ion-induced reactions measured with a fragment separator

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