RADIATION MEASURING INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To specify a radiation coming direction by simple constitution.

SOLUTION: A shielding body 20 is provided rotatably in a periphery of a scintillator 16. A rotary mechanism 22 rotation-drives the shielding body 20 continuously or intermittently. An observed radiation intensity goes down when an existing direction of the shielding body 20 is consistent with the radiation coming direction. The radiation coming direction is thereby specified by specifying a sinking point in an intensity distribution of the radiation expressing a counting rate or a dosage rate in every direction.

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