Projectile fragments isotopic separation: Application to the lise spectrometer at GANIL

Dufour, J.P.; Moral, R. Del; Emmermann, H.; Hubert, F.; Daillant, Jean; Poinot, C.; Pravikoff, M.S.; Fleury, A.; Delagrange, H.; Schmidt, Karl‐Heinz

doi:10.1016/0168-9002(86)91008-9

Cited by 150 publications

(38 citation statements)

References 8 publications

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“…A 36 S 16+ primary beam of 77.5 A MeV with an average intensity of 6.5 eµA underwent fragmentation in a 398 mg/cm 2 C target placed between the two superconducting solenoids of the SISSI [19] device. The reaction products were separated and selected trough the ALPHA spectrometer by means of the Bρ-∆E-Bρ method [15,20].…”

Section: In-beam Spectroscopy Of the 24 F Nucleus A Experimentamentioning

confidence: 99%

Nuclear structure studies ofF24

et al. 2015

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The structure of the 24 F nucleus has been studied at GANIL using the β decay of 24 O and the inbeam γ-ray spectroscopy from the fragmentation of 27,28 Na, 25,26 Ne and 29,30 Mg nuclei. Combining these complementary experimental techniques, the level scheme of 24 F has been constructed up to 3.6 MeV by means of particle-γ and particle-γγ coincidence relations. Experimental results are compared to shell-model calculations using the standard USDA and USDB interactions as well as abinitio valence-space Hamiltonians calculated from the in-medium similarity renormalization group based on chiral two-and three-nucleon forces. Both methods reproduce the measured level spacings well, and this close agreement allows unidentified spins and parities to be consistently assigned.

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Section: In-beam Spectroscopy Of the 24 F Nucleus A Experimentamentioning

confidence: 99%

Nuclear structure studies ofF24

et al. 2015

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“…6, the measured momentum shifts for the Be target (a), compared with the case of the Ta target (b), vary widely. One could understand the deviation as an effect of the target thickness in atomic energy-loss process [22], because the target thickness of Be is six times thicker than that of Ta.…”

Section: A Momentum Peak Shiftmentioning

confidence: 99%

Projectile fragmentation reactions and production of nuclei near the neutron drip line

et al. 2007

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The reaction mechanism of projectile fragmentation at intermediate energies has been investigated observing the target dependence of the production cross sections of very neutron-rich nuclei. Measurement of longitudinal momentum distributions of projectile-like fragments within a wide range of fragment mass and its charge was performed using a hundred-MeV/n 40 Ar beam incident on Be and Ta targets. By measurement of fragment momentum distribution, a parabolic mass dependence of momentum peak shift was observed in the results of both targets, and a phenomenon of light-fragment acceleration was found only in the Be-target data. The analysis of production cross sections revealed an obvious enhancement of the target dependence except target size effect when the neutron excess is increased. This result implies the breakdown of factorization (BOF) of production cross sections for very neutron-rich nuclei near the drip line.

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“…A precise estimation of ∆E Al+Au was performed on an event-by-event basis, using the empirical formula given in ref. [34], in which the different parameters were adjusted by means of LISE++ simulations [35]. In addition, the ring and sector energy measurements of the ∆E detector allowed to identify and to reconstruct multiplicity-two events arising from 12 C( 238 U, 242 Pu) 8 Be reactions and the subsequent decay of 8 Be into two strongly correlated α particles, with similar kinetic energies and a small angle between them.…”

Section: Discussionmentioning

confidence: 99%

Transfer reactions in inverse kinematics: An experimental approach for fission investigations

et al. 2014

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Inelastic and multi-nucleon transfer reactions between a 238 U beam, accelerated at 6.14 MeV/u, and a 12 C target were used for the production of neutron-rich, fissioning systems from U to Cm. A Si telescope, devoted to the detection of the target-like nuclei, provided a characterization of the fissioning systems in atomic and mass numbers, as well as in excitation energy. Cross-sections, angular and excitation-energy distributions were measured for the inelastic and transfer channels. Possible excitations of the target-like nuclei were experimentally investigated for the first time, by means of γ-ray measurements. The decays from the first excited states of 12 C, 11 B and 10 Be were observed with probabilities of 0.12 -0.14, while no evidence for the population of higher-lying states was found. Moreover, the fission probabilities of 238 U, 239 Np and 240,241,242 Pu and 244 Cm were determined as a function of the excitation energy.

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Projectile fragments isotopic separation: Application to the lise spectrometer at GANIL

Cited by 150 publications

References 8 publications

Nuclear structure studies ofF24

Nuclear structure studies ofF24

Projectile fragmentation reactions and production of nuclei near the neutron drip line

Transfer reactions in inverse kinematics: An experimental approach for fission investigations

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