| 摘要 |
PURPOSE:To provide a radioactive surface contamination detector in which a radiation is measured with definite detection efficiency even when an object to be measured has an uneven part or even when the distance between the object to be measured and a detection part for the radioactive surface contamination detector cannot be kept definite. CONSTITUTION:A radiation which is radiated from a radioactive substance which has adhered to the surface of an object to be measured is measured by a probe 14, and, at the same time, the distance between the object to be measured and the probe 14 is detected by a distance detector 24. Then, on the basis of the distance detected by the distance detector 24, a contaminationdegree conversion part 26 converts a measured value measured by the probe 14 into a radiation contamination degree which is measured from a prescribed distance with reference to the object to be measured. Consequently, even when the relative distance between the probe 14 and the object to be measured is changed, the radiation is measured with definite detection efficiency, and the contamination degree can be measured.
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