Physics – Atomic Physics
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phdt........12w&link_type=abstract
Ph.D. Thesis California Univ., Berkeley.
Physics
Atomic Physics
16
Atomic Physics, Chemical Composition, Cosmic Rays, Nuclear Physics, Error Analysis, Error Correcting Codes, Formalism, Leakage, Lithium, Nickel, Radiation Spectra, Standards, Value
Scientific paper
The major emphasis is on developing the proper set of formulae and error estimates for each of the atomic and nuclear processes that govern the composition of the cosmic rays between lithium and nickel. In particularly, it is shown that errors of approximately a factor of two exist in the standard (Bohr) cross sections for stripping, that the correction function from high energy photoionization needs to be introduced into the standard cross section for radiative attachment, and that because the half-life of a fast nucleus with at most one K-shell electron can differ from the half-life of a neutral atom, several laboratory-based values need correction. The framework used to assemble and correct these quantities is a matrix formalism for a leaky box model.
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