| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely perform radiation and temperature measurement by finding the incident position and intensity of optical fiber radiation for radiation from the arrival time difference of discriminated scintillation light, and besides, finding a temperature position from the arrival time difference between Stokes light and antiStokes light. SOLUTION: Scintillation light 10 of one end side of a scintillation fiber 8 is input to a time difference measuring circuit 17 through a connector 9a, an optical fiber 15a and the like, and on the other hand, the scintillation light 10 of the other end side is input to the circuit 17 through a connector 9b, an optical fiber 15b and the like. A signal processing circuit 14 finds the incident position and intensity of radiation 100 in the scintillation fiber 8 on the basis of a time difference. The circuit 14 measures temperature of the optical fibers 6a, 6b by the ratio of Stokes light 11a to anti-Stokes light 11b, and the pulse generation time of a pulse generator 1 and a measuring temperature position of the optical fibers 6a, 6b are specified on the basis of the time difference in which rear scattering light 70 reaches through light/electricity converters 13a, 13b.</p> |
