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- W220232874 abstract "Present chemical techniques for analyzing minute amounts of beryllium are involved and quite time consuming. A method has been developed, utilizing the yield of neutrons and gamma rays fromn Be/sup 9/ under alpha particle bombardment. Samples of air-borne beryllium dust collected on filter paper are exposed to Po/sup 210/ alpha particles and can be analyzed in a matter of minutes. A 3 x 3 inch NaI(Tl) crystal and low voltage discriminator are used to detect the gamma ray yield (4.45 Mev). This yield has been correlated with the beryllium content of filter paper down to ~0.2 mu g. This technique should greatiy facilitate the evaluation of industrial beryllium dust hazards. (auth)" @default.
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- W220232874 date "1957-04-25" @default.
- W220232874 modified "2023-09-26" @default.
- W220232874 title "DETECTION OF AIR-BORNE BERYLLIUM DUST. Final Report Covering the Period from May 1955 to February 1957" @default.
- W220232874 doi "https://doi.org/10.2172/4309844" @default.
- W220232874 hasPublicationYear "1957" @default.
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