Particle analysis and sorting

Details Particle analysis and sorting Particle analysis and sorting

G - Physics

01

N

G01N 23/222 (2006.01) G01N 15/10 (2006.01)

Patent

CA 2131784

ABSTRACT The invention relates to a method and apparatus for analysing samples for the presence of a particular element or isotope. In the method a pulsed neutron beam is directed at the sample. The beam is at an energy level chosen for the neutrons to interact with the element or isotope and produce a detectable gamma spectrum. A gamma detector detects the neutron-induced gamma spectrum. The detector is time-gated in such a manner that neutron-induced gamma radiation is detected while neutrons scattered by the sample are at least substantially excluded. Analysis of the spectrum enables a determination to be made as to whether a spectral peak characteristic of the particular element or isotope is present. The invention also provides apparatus for carrying out the method.

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