Elsevier

Nuclear Physics

Volume 78, Issue 3, April 1966, Pages 613-624
Nuclear Physics

Reaction mechanism for the 11B(α, n)14N reaction

https://doi.org/10.1016/0029-5582(66)90899-6Get rights and content

Abstract

The reaction 11B(α, n)14N has been studied to establish the reaction mechanism and, if this proceeds through the formation of the compound nucleus, to investigate the levels in 15N around 13 MeV excitation. Using a time-of-flight spectrometer, 47 angular distributions were measured of the n0 group of neutrons leaving 14N in the ground state, between incident alpha particle energies of 2.38 and 3.67 MeV; and 10 angular distributions were obtained of the n1 group of neutrons, between incident alpha particle energies of 3.46 and 3.67 MeV. The analysis of the angular distributions shows that the reaction 11B(α, n0)14N leaving 14N in the ground state proceeds predominantly through the compound nucleus process, while direct interaction see to be the main contribution to the reaction 11B(α, n1)14∗N, leaving 14N at the first excited. state. Spins and parities of 32, 32 and 72, respectively, have been assigned to the levels in the compound nucleus, corresponding to the resonances at alpha particle energies of 2.63, 3.23 and 3.57 MeV.

References (11)

  • L.L. Lee et al.

    Phys. Rev.

    (1959)
  • R.L. Bramblett et al.

    Nucl. Instr.

    (1960)
  • J.L. Fowler et al.

    Phys. Rev.

    (1955)
  • W.D. Roseborough et al.

    Phys. Rev.

    (1951)
    R.M. Sanders

    Phys. Rev.

    (1956)
  • J. Hanna et al.

    Bull. Am. Phys. Soc.

    (1961)
    J. Hanna et al.

    Bull. Am. Phys. Soc.

    (1962)
There are more references available in the full text version of this article.

Cited by (0)

View full text