Elsevier

Physics Letters B

Volume 325, Issues 3–4, 21 April 1994, Pages 313-316
Physics Letters B

Low-energy fission studies of neutron-deficient projectile fragments of 238U

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Abstract

Low-energy fission of neutron-deficient actinium, thorium, protactinium and uranium isotopes has been investigated using a new experimental technique. The isotopes were produced as secondary beams by projectile fragmentation from a 950 A MeV 238U primary beam. Their fission was induced by electromagnetic excitation and nuclear reactions in a lead and in a plastic target at energies between 510 A MeV and 150 A MeV. The transition from symmetric fission is shown to take place around N = 138.

References (18)

  • E.A.C. Crouch

    At. Data Nucl. Data Tables

    (1977)
  • Th. Weber

    Nucl. Phys. A

    (1990)
  • K.-H. Schmidt

    Nucl. Instrum. Methods A

    (1987)
  • K.-H. Schmidt

    Nucl. Phys. A

    (1992)
  • C.A. Bertulani et al.

    Phys. Rep.

    (1988)
  • M.T. Mercier

    Phys. Rev. C

    (1986)
  • D.E. Greiner

    Phys. Rev. C

    (1985)
  • D.J. Hinde

    Phys. Rev. C

    (1989)
  • D.C. Hofmann

    Nucl. Phys. A

    (1989)
There are more references available in the full text version of this article.

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