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Use of /sup 48/Ca as a stable isotope tracer analyzed by proton activation

Journal Article · · Med. Phys.; (United States)
OSTI ID:7321237

The use of the stable isotope /sup 48/Ca as a tracer in biological systems has been studied. Determination of /sup 48/Ca concentrations in samples was accomplished by proton activation via the (p,n) reaction with subsequent measurement of ..gamma..-ray spectra from 44-h /sup 48/Sc and 4-h /sup 44/Sc. With protons of about 5.5 MeV and a Ge(Li) ..gamma..-ray detector, and with no chemical processing of the samples, ratios of these two radioisotopes can be determined with sufficient precision to allow /sup 48/Ca tracer studies to be performed with sensitivity at least equivalent to that possible with the common /sup 45/Ca radioactive tracer. (AIP)

Research Organization:
Nuclear Physics Laboratory, Department of Physics and Astrophysics, University of Colorado, Boulder, Colorado 80309
OSTI ID:
7321237
Journal Information:
Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 4:1; ISSN MPHYA
Country of Publication:
United States
Language:
English