Elsevier

Nuclear Physics

Volume 48, October–November 1963, Pages 169-175
Nuclear Physics

Disintegration of O16 and C12 by fast neutrons

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Abstract

The disintegration of O16 and C12 by fast neutrons has been studied using a grid-type ionization chamber filled with CO2Ar or CO2Kr mixtures. Mono-energetic neutrons for studying the reactions from 5.0–8.8 MeV were produced with the D(d, n)He3 reaction using a gas target. The α-particle group from the O16(n, α)C13 reaction leaving C13 in its ground state was studied over the entire energy range. The excitation function showed 21 resonances corresponding to excited states in O17. The cross section varied from 2–206 mb. The α-particle group leaving C13 in its first excited state was studied from 7.6–8.7 MeV, the cross section increasing from about 3–12 mb. Unresolved α-particle groups leaving C13 in its second and third excited states were studied from 8.1–8.7 MeV, the cross section decreasing from an estimated 30–8 mb. The α-particle group from the C12(n,α)Be9 reaction leaving Be9 in its ground state was studied from 7.9–8.7 MeV. The cross section increased from 60–76 mb at 8.0 MeV and then decreased to 32 mb at 8.7 MeV.

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

Now with Oklahoma City University, Oklahoma City, Oklahoma.

††

Deceased

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