| 摘要 |
PURPOSE:To easily control a radiant ray, by operating mutual magnification of each detector, displaying it, and automatically deciding whether it is necessary or not to wear a radiant ray exposure measuring implement except a breast part. CONSTITUTION:Radiant ray detectors 1, 2 are installed to a measuring instrument body 5 by a support 4 with graduation 3, so that a space between the detectors 1, 2 can be read by the graduation 3. A detecting signal of the detectors 1, 2 is led to converters 6, 7 through cables 8, 9, and is converted to a radiation dosage rate. As for a converting signal, its magnification is operated by an operating device 10, and one signal is displayed on a radiation dosage rate display device 11. The device 10 is provided with a magnification display device 12 for displaying the operated magnification and an alarm device 13 for turning on a lamp when the magnification has exceeded a prescribed value. In this state, the detector 2 is installed to the breast position of an operator, and the detector 1 is installed to a local position to be measured, and is used by controlling the length of a support 4. In this way, the radiant ray magnification of the breast position and the local position can be known quickly, and whether it is necessary or not to wear a measuring implement can be decided automatically. |
