REACTIONS OF ALPHA PARTICLES WITH IRON-54 AND NICKEL-58

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys.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.123.231· OSTI ID:4026906

Houck, F S; Miller, J M

>The excitation functions for the ( alpha ,p), ( alpha ,n), ( alpha ,pn), ( alpha ,2n), ( alpha ,2pn), and ( alpha ,p2n) reactions of Fe/sup 54/ and the ( alpha , alpha 'p), ( alpha , alpha 'pn), ( alpha , alpha 'pn), and ( alpha , alpha '2n) reactions of Ni/sup 58/ are determined for alpha energies up to 40 Mev. A large preference for proton emission is observed. At the maxima in the excitation functions, these ratios were obtained: sigma ( alpha ,p)/ sigma ( alpha ,n) = 3-1; sigma (aa,pn)/ sigma ( alpha ,2n) = 70; sigma ( alpha , alpha 'p)/ sigma ( alpha , alpha 'n) = 6; sigma ( alpha ,2pn sigma ( alpha ,p2n) = 6.3 (at 40 Mev); and sigma ( alpha , alpha ' pn)/ sigma ( alpha , alpha ' 2n) = 140 (at 40 Mev). These results are discussed in terms of the compound-nucleus model. A value of r/sub o/ = 1.7 fermis is required to fit the low-energy portion of the observed "total" cross section with total reaction cross section calculated from continuum theory. (auth)

• Research Organization: Columbia Univ., New York; Brookhaven National Lab., Upton, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-024367
• OSTI ID: 4026906
• Report Number(s): BNL-5266; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 123; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ALPHA PARTICLES
NICKEL 58
PHYSICS