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METHOD AND DEVICE FOR MEASURING RADIOACTIVE EMISSIONS OF MOVING RADIOACTIVE MATERIALS
METHOD AND DEVICE FOR MEASURING RADIOACTIVE EMISSIONS OF MOVING RADIOACTIVE MATERIALS
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机译:移动放射性物质辐射发射的测量方法和装置
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摘要
A method of and apparatus for measuring radio-active emissions from moving radio-active material. Use is made of a radiation detector, a first radiation shield of a first material which shields the detector, and a second radiation shield which is located between at least a portion of the first shield and the detector. The material of the second shield is inherently less contaminated and emits secondary excitation radiation of lower energy than the first material.
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