Abstract

A procedure is described for the activation analysis of particulate air contaminants collected on filter papers. Results are included from the identification of several radioactive species in a series of samples. The samples, together with a filter paper control, were irradiated in a reactor. Measurements of BETA activity were made with a proportional counter and gamma activities were measured with a pulse height analyzer equipped with a scintillation detector. Some samples were also analyzed with a multichannel analyzer. Data are included on the activation history of the samples and the radioisotopes identified. (C.H.)

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