| 摘要 |
A personal radiation detection device is provided having a housing containing within at least one sheet of rare earth intensifying screen that interacts with ionizing radiation when present at a specified exposure level to generate visible light and a plurality of photoresistors which is sensitive to the visible light and conducts a voltage upon the detection of the light. A specular reflector such as reflective tape, foil, or a finely polished mirror is also provided to reflect any stray visible light in the direction of the photoresistors. The photoresistors send a signal through a resistor to an operational amplifier which then activates an indicator including a light and/or an audible buzzer. The lightweight housing may also be provided with a slot on an outside surface to hold standard photographic film used to monitor cumulative exposure to radiation. A battery is provided to generate power to operate the device.
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