Working principle of measuring the radiation a person is when the film serial the incident rays react with chemical film coating on the film, and when the film process. The radiation section, black (MBT). The unused part of the radiation will be removed. The result will depend on the ability of black film, which depending on the dose received and, when used in combination with cartridge filter film cartridge contained in the radiation-blocking radiation energy can be supplied with various film were different, so the film will appear black with a pattern that can tell what kind of radiation is.
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