Probe for insertion into drill holes for the purpose of...

Details Probe for insertion into drill holes for the purpose of... Probe for insertion into drill holes for the purpose of...

G - Physics

01

V

358/3

G01V 5/04 (2006.01) G01V 5/12 (2006.01) G01V 5/14 (2006.01)

Patent

CA 1221476

- ABSTRACT - The invention concerns a probe for insertion into drill holes for the purpose of locating mineral ore deposits. A radioactive source of irradiation and a detector, which is opposite the irradiation source and is shielded by an aperture for determining the fluorescent radiation which is stimulated through the radioactive irradiation in the drill hole wall, are concentrically located within a cylindrical housing. The aperture forms a slot running vertically to the axis of the probe, which extends to the internal wall of the housing. The disk-shaped aperture causes, not only a limiting of the irradiation on the ring-shaped wall portion of the drill hole, and thereby a great decomposition in the drill hole alignment, but also, moreover, an increase of intensity through the reflec- tions of the radioactive irradiation on the disk-shaped surfaces of the aperture.

451657

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