| 摘要 |
PURPOSE:To always enable accurate measurement quickly and efficiently, by arranging a radiation dose detector in the perimeter of a table to set a radioactive object to be measured. CONSTITUTION:A turntable 4 is so arranged to be driven and rotate horizontally with a motor while a plurality of radiation dose detectors 5 are provided in the perimeter of the turntable 4 being separated at an equal interval from each other on one circumference thereof. Additional one detector 5 is arranged securely under the table 4. Moreover, a control base 9 incorporating a required signal processing circuit or the like and having an operation part 7 and a display section 8 is provided. A radiation dose detection signal from the detector 5 is inputted into a peak hold circuit and the max. dose rate thereof is displayed 8. As the detector 5 is arranged on the circumference in the perimeter of the table 4, simply by turning the table 4 by a quarter, the measurement of radiation dose rate is accomplished for the entire perimeter of a case 3.
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