Radiation detector and light transmitting device for radiation detecting

Existent radiation detectors and measuring methods require electric processing and special read-out devices, which make signal processing systems complicate. Then, there is disposed a radiation sensitive light emission wavelength converter comprising a scintilator layer emitting fluorescence and fluorescent plastic optical fibers for absorbing fluorescent light and excitating, collecting and optically transmitting fluorescent light of different wavelengths, and the detected light emitted from the convertor is transmitted to a remote places by way of optical fibers having a microlense as required. When radiation rays are irradiated, the scintilator emits fluorescent light and the light is outputted by way of the fluorescent plastic optical fibers. Since the light is converted to that of a longer wave length, presence and intensity of the radiation rays can be discriminated by the color and the briliancy thereof. Then, an extremely simple and economical radiation detecting and display device, capable of naked eye-observation, and not requiring a power source, a signal processing system and an analyzing system an photoelectronic conversion is not required in a detection section. (N.H.)