
Applications of Tagged Neutron Beams
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No outside stimulation of these elements is needed for gamma-ray production.
e intensity of the characteristic gamma-ray lines measured by the gamma-
ray spectrometer can thus be used to infer absolute elemental abundances of
the material. Accessible elements include C. H, O, P, S, Si, Na, Ca, Ti, Fe, Al, Cl,
Mg, Mn, and V. Excellent reviews of the physics of neutron- induced gamma-
ray techniques and how they are used for both remote and insitu geochemical
analysis can be found in article by Grau etal. (1990), Boynton etal. (1993), and
Evans etal. (1993).
e aim of the mission is determination of the ...