The 11B(p,α)8Be → α + α and the 11B(α,α)11B Reactions at Energies Below 5.4 MeV

Autor: M. W. Ahmed, H. R. Weller, S. S. Henshaw, Matthew A Blackston, N. Brown, Brent Perdue, S. Stave, P.-N. Seo, Mark Spraker, Richard Prior
Rok vydání: 2011
Předmět:
Zdroj: Journal of Fusion Energy. 31:357-367
ISSN: 1572-9591
0164-0313
DOI: 10.1007/s10894-011-9473-5
Popis: Measurements of the absolute cross section and angular distributions for the $$^{11} \hbox{B}(p,\alpha)^{8}{\text{Be}}\rightarrow\alpha+\alpha$$ and the 11B(α,α)11B reactions have been performed from 0.15 to 3.8 MeV for the 11B(p,α) study and from 2 to 5.4 MeV for the 11B(α,α) reaction. The absolute cross sections are presented in terms of the total number of α-particles detected in order to avoid uncertainties due to ambiguities in the number of alpha particles emitted in the reaction at a particular energy. The angular distributions of the 11B(p,α)8Be(2+) reaction were fit to a Legendre polynomial expansion and the coefficients are presented. Finally, the 11B(α,α)11B data were fit in terms of phase shifts (ignoring the spin of the target), providing a convenient representation of the elastic cross section data between 2 and 5.4 MeV.
Databáze: OpenAIRE
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