G - Physics – 01 – N
Patent
G - Physics
01
N
358/5
G01N 23/08 (2006.01)
Patent
CA 1160364
IN THE UNITED STATES PATENT OFFICE APPLICATION OF WALFRIED MICHAELIS and HANS-ULRICH FANGER FOR "DEVICE FOR DETERMINING THE PROPORTIONS BY VOLUME OF A MULTIPLE-COMPONENT MIXTURE BY IRRADIATION WITH SEVERAL GAMMA LINES" ABSTRACT OF THE DISCLOSURE A device for determining the proportions by volume of an n-component mixture whose components have differing mean atomic numbers includes a source for irradiating the mixture on a common axis with n-1 gamma lines of different energies, that is to say gamma radiation with n-1 energy peaks at different energies, at which the absorption coefficients are different. A number of radiation detectors equal to the number of gamma lines used are provided each of which measures the intensity of only a respective one of the gamma lines and calculating unit uses the measured intensities to calculate the said proportions by volume, 1.
386436
Fanger Hans-Ulrich
Michaelis Walfried
Fetherstonhaugh & Co.
Gkss-Forschungszentrum Geesthacht G.m.b.h.
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