Neutron-emission mechanisms in the {sup 115}In({alpha}, xn) reactions

Journal Article · Sat Dec 15 04:00:00 EST 2007 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778807120022· OSTI ID:21077592

Titarenko, N N; Trykova, V I ^[1]

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1. Institute of Physics and Power Engineering (Russian Federation)

Spectra and angular distributions of neutrons from the {sup 115}In({alpha}, xn) reactions were measured at {alpha}-particle energies of 16, 18, 27, and 45 MeV. The measurements were performed with time-of-flight neutron spectrometers at pulsed accelerators of charged particles. The data obtained in this way were analyzed within the models of equilibrium, preequilibrium, and direct reaction mechanisms. The exact formalism of Hauser-Feshbach statistical theory was used in the calculations, level densities in residual nuclei excited in the reactions under consideration being found from the neutron evaporation spectra in the (p, n) reactions on tin isotopes. Contributions from equilibrium, preequilibrium, and direct neutron emission were studied in a wide range of {alpha}-particle energies.

• OSTI ID: 21077592
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 12 Vol. 79; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ALPHA DECAY
ALPHA PARTICLES
ANGULAR DISTRIBUTION
DIRECT REACTIONS
ENERGY-LEVEL DENSITY
EQUILIBRIUM
INDIUM 115
MEV RANGE 10-100
NEUTRON EMISSION
NEUTRON SPECTROMETERS
NEUTRONS
SIMULATION
SPECTRA
STATISTICAL MODELS
TIME-OF-FLIGHT METHOD
TIN ISOTOPES