OCR Text |
Show Geiger Counter In Car Spots U-Ore The U. S. Geological Survey has prospected for uranium with a carmounted geiger counter since 1945. The basic principles of the car-tra-verse technique are simple. Rocks and "j of abnormally high uranium or thorium content are surrounded by an equlvalently high gamma radiation field. An abnormal gamma-radiation field that extends across a road or highway can be detected at relatively high speeds by a car or truck equipped with a suitable geiger counter. Once detected by car traversing, the deposit can be examined with light portable instruments, and the better portions sampled. The prime advantage of the car-traverse technique is the rapidity of the scanning process, 100 to 200 miles per day. which permits exploration of large areas In a short time. |