G - Physics – 01 – V
Patent
G - Physics
01
V
358/1, 358/36
G01V 5/00 (2006.01)
Patent
CA 1265259
The method of monitoring a hidden coal-rock inter- face includes irradiating the medium being monitoring from a gamma-ray source and registering by a detector the int- ensity of backward scattered radiation at a spacing from the surface of the monitoring medium and at a spacing from the radiation source. There are formed at the detector two zones of reception or backward scattered radiation, diff- erently spaced from the source, so that the intensity of backward scattered radiation received by the zone closer to the source diminishes, and the intensity of backward scattered radiation received by the zone more remote from the source grows with a growing spacing of the de- tector from the monitored medium. The intensities of backward scattered radiation at the two zones are summed up to obtain the summary intensity invariant with respect to a varying spacing of the detector from the monitored medium. The transmitter for performing the method comp- rises a housing acommodating a gamma-ray source and a de- tector of backward scattered radiation, enclosed in a screen having made therein ports differently spaced from the source. The area of the port more remote from the source is greater than the area of the less remote port, and the spacing of the source from the detector does not exceed a preset maximum value of the spacing of the detec- tor from the monitoring medium.
540573
Chernyak Zinovy A.
Geikhman Isaak L.
Kandala Anatoly I.
Khrapov Valery G.
Nunuparov Georgy M.
Chernyak Zinovy A.
Geikhman Isaak L.
Institut Gornogo Dela Imeni A.a. Skochinskogo
Kandala Anatoly I.
Khrapov Valery G.
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