RADIATIVE ALPHA-PARTICLE CAPTURE IN Ni$sup 53$ AND Xe$sup 136$ AT HIGHER ENERGIES

Journal Article · Wed Apr 01 04:00:00 EST 1959 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.114.305· OSTI ID:4270704

Ball, J B; Fairhall, A W; Halpern, I

The cross sections of the ( alpha , gamma ) reaction have been measured as a function of bombarding energy in Ni/sup 58/ and Xe/sup 136/ up to about 35 Mev. In both cases the capture everts were identified by means of the specific radioactivity produced in the resstion. In the bombardment of Ni/sup 58/ it was necessary to make use of the tight angular spread of recoils in the capture reaction to distinguish these recoils from those of the Ni/sup 60/ alpha ,2n) reaction. Both measured capture cross sections rise to a maximum value (Ni/sup 58/: 400 alpha b, Xe/sup 136/: 60 mu b) at an exitation energy of about 20 Mev. A comparison of the observed cross sections with those obtained in (p, gamma ) reactions at similar energies suggests that these higher energy capture reactions take place largely through the formation of a compound nucleus rather than by any ''direct'' mechanism. (auth)

• Research Organization: Univ. of Washington, Seattle
• NSA Number: NSA-13-016487
• OSTI ID: 4270704
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 114; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
ANGULAR DISTRIBUTION
CAPTURE
COMPOUND NUCLEI
CROSS SECTIONS
ENERGY
ENERGY RANGE
EXCITATION
GAMMA RADIATION
MEASURED VALUES
NICKEL 58
NICKEL 60
NUCLEI
PHYSICS AND MATHEMATICS
PROTONS
RADIOACTIVITY
RECOILS
XENON 136