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- W2258686543 abstract "The concentration of uranium is determined in order to obtain basic data useful for preventing occupational diseases. A large electrostatic precipitator with a flow rate of 50 l/min is used to collect samples at various locations where different functions are performed, crushing, melting, and cutting. The concentration of uranium in collected dust particles is determined by measuring the fluorescence of uranium due to irradiation by ultraviolet rays from an ultra- high-pressure mercury vapor lamp. An interference filter is used to allow a peak fluorescence at 543 m ation to be detected by a photomultiplier 931A. The sensitivity of the system is 5/10,000 . Impurity interference is found to be negligible. The results indicate that the maximum concentration is found in the crushing chamber with 3.22 /m/sup 3/ and the minimum in the ore selection room with 0.15 /m/sup 3/. (JPRS)" @default.
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- W2258686543 date "1958-01-01" @default.
- W2258686543 modified "2023-09-26" @default.
- W2258686543 title "URANIUM CONCENTRATION IN THE AIR OF A URANIUM PROCESSING PLANT" @default.
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