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Fission studies at VAMOS

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M. Caamano
  • Function : Author
D. Ramos
  • Function : Author
K.-H. Schmidt
  • Function : Author
J. Benlliure
  • Function : Author
E. Casarejos
  • Function : Author
D. Cortina
  • Function : Author
O. Delaune
B. Fernandez-Dominguez
  • Function : Author
A. Heinz
  • Function : Author
C. Paradela
  • Function : Author
T. Roger

Abstract

Inverse kinematics is a new tool to study nuclear fission. Its main advantage is the possibility to measure with an unmatched resolution the atomic number of fission fragments, leading to new observables in the properties of fission-fragment distributions. In addition to the resolution improvement, the study of fission based on nuclear collisions in inverse kinematics beneficiates from a larger view with respect to the neutron-induced fission, as in a single experiment the number of fissioning systems and the excitation energy range are widden. With the use of spectrometers, mass and kinetic-energy distributions may now be investigated as a function of the proton and neutron number sharing. The production of fissioning nuclei in transfer reactions allows studying the isotopic yields of fission fragments as a function of the excitation energy. With the access of kinematics properties, the charge polarisation of fragments at scission is now revealed with high precision, and it is shown that it cannot be neglected, even at higher excitation energies. Results on fissioning systems 238U, 239Np, 240Pu, 244Cm, obtained in transfer reactions are presented, together with the fusion reaction leading to the compound nucleus 250Cf at an excitation energy of 45MeV.
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Dates and versions

in2p3-01503866 , version 1 (07-04-2017)

Identifiers

  • HAL Id : in2p3-01503866 , version 1

Cite

F. Fanny Farget, M. Caamano, D. Ramos, C. Rodriguez-Tajes, K.-H. Schmidt, et al.. Fission studies at VAMOS. 6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, Mar 2017, Chamrousse, France. ⟨in2p3-01503866⟩
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