Other
Scientific paper
Aug 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978grsa.rept..323c&link_type=abstract
In its Gamma Ray Spectry. in Astrophys. p 323-329 (SEE N78-31971 22-88)
Other
1
Astronomical Spectroscopy, Emission Spectra, Gamma Rays, High Energy Interactions, Line Spectra, Charge Exchange, Energetic Particles, Inelastic Scattering, Particle Emission, Spallation
Scientific paper
The spectra of energetic nuclei within astrophysical sources may be determined by studying gamma-ray line emissions above 8 MeV. Excited states which can be produced by inelastic scattering, charge exchange, and spallation reactions in the abundant nuclear species were considered in order to identify nuclear lines which may contribute to the gamma spectrum. The cross sections for production of most high-energy states are sparsely measured. Those which were determined are comparable to the cross section for production of the 15.11 MeV level in C-12 with few exceptions. The branching ratios for gamma-ray and particle emission are, however, better known. Of those states considered, 44 measured branching ratios greater than 40% for emission of a gamma-ray with energy above 8 MeV. For twelve more states the branching ratios, although not yet determined, are expected to be small. The gamma-ray emission from other individual nuclear states is not likely to be as great as that that for the 15.11 MeV state in C-12.
Crannell Carol J.
Crannell Hall
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