| 摘要 |
PURPOSE:To enable exact acquisition of information on radiation dose with simple constitution by moving a radiation detector along an introducing piping extended in an area for monitoring radiations and obtaining simultaneously the data on the radiation dose and detection position. CONSTITUTION:The introducing piping 1 is extended to the required measuring position of the area for monitoring the radiations and the radiation detector 2 are freely movably inserted therein and is so provided that the detector can be pulled and moved by a cord 9 connected with a signal cable 10, a power source cable 11, etc. Permanent magnets 14 are disposed as position detectors at the required points of the piping 1. The detection signal for the radiation dose by the detector 2 and the position signal emitted by an electromagnetic coil 13 built therein in the stage when the detector passes the position of the magnets 14 are fed to an operator 18 by which the radiation dose is determined. The detection of the many points with the signal apparatus is thus made possible and the acquisition of the exact data is made possible with the installation having the simple constitution. |
