G - Physics
01
N
358/22
G01N 23/222 (2006.01)
Patent
CA 1218474
ABSTRACT OF THE DISCLOSURE Ore Irradiator An irradiator is provided for irradiating lumps of ore to detect the presence of gold in the lumps by neutron activation analysis. The irradiator consists of a close packed array of three inner cylindrical ducts and three outer cylindrical ducts through which the lumps of ore are passed, with three neutron sources arranged in the spaces between the inner ducts and the outer ducts to irradiate the ducts and to activate any gold by the reaction 197Au (n, n'.gamma. ) 197mAu. Each inner duct is thus adjacent to two neutron sources, and is of larger cross-sectional area than the outer ducts.
452477
Gowling Lafleur Henderson Llp
United Kingdom Atomic Energy Authority
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