Radiant energy – Geological testing or irradiation
Patent
1989-12-21
1991-05-14
Hannaher, Constantine
Radiant energy
Geological testing or irradiation
371175, 37DIG3, 37DIG19, 250255, 250361R, 250374, E02F 926, G01T 116
Patent
active
050158473
ABSTRACT:
A device for measuring radioactivity for a machine for use in the extraction of radioactive ore and including at least one moving receptacle (18) suitable for containing a load of ore. The device comprises a rod (120) having its top end hinged to the machine in such a manner as to leave the rod free to swing in at least one vertical plane, the bottom end of the rod having a radioactive radiation detector (122) covering a determined solid angle, the device further including displacement means (140, 166) for bringing the rod and the receptacle in reproducible manner into a mutual disposition such that the load of ore contained in the receptacle occupies a substantial portion of the solid angle of the detector. An arm (110) is preferably provided between the rod and the machine.
REFERENCES:
patent: 3723727 (1973-03-01), Wogman et al.
patent: 4135632 (1979-01-01), Berkel, Jr.
patent: 4590377 (1986-05-01), Lukens
Compagnie Francaise de Mokta
Hannaher Constantine
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