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Measuring instrument for determining radon concentrations
Measuring instrument for determining radon concentrations
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机译:测定ra浓度的测量仪
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摘要
The invention relates to a measuring instrument for determining radon concentrations in materials, especially in building material, rock, soil and the like, consisting of a hemispherical measuring bell, an alpha -ray detector, a high-voltage source and various evaluation modules. According to the invention, the alpha -ray detector 30, the evaluation modules 36, 38, the measuring bell 42 and the high-voltage source 34 are combined in a casing 22 to give an integrated, portable device and are of interchangeable design. IMAGE
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