G - Physics – 01 – N
Patent
G - Physics
01
N
58/5, 358/21.1
G01N 23/20 (2006.01) G01N 23/00 (2006.01) G01N 23/222 (2006.01)
Patent
CA 1193371
ABSTRACT The invention relates to a measuring apparatus and method for quantitatively measuring the concentration of a first element in a sample containing the first element and other element or elements. The apparatus comprises source yielding neutrons having energy sufficient to produce first .gamma.-rays by neutron inelastic scattering or thermal neutron capture by atoms of the first element and other .gamma.-rays by neutron inelastic scattering or thermal neutron capture by atoms of the other element or elements, detector means adapted to detect the first .gamma.-rays and the other .gamma.-rays, shield means associated with the detector means to reduce the intensity of direct source .gamma.-rays and neutrons, energy analysis means associated with the output of the detector means adapted to distinguish between the first .gamma.-rays and the other .gamma.-rays and calculating means associated with the output of the energy analysis means to calculate the concentration.
402700
Australian Atomic Energy Commission
Macrae & Co.
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