Spiral Capillary Plastic Scintillation Flow Counter for Beta Assay

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Science  22 May 1959:
Vol. 129, Issue 3360, pp. 1429-1430
DOI: 10.1126/science.129.3360.1429


Tracer counting of beta emitters in aqueous solution was performed with a detector fabricated from a plastic scintillator capillary. The detector exhibits low gamma background and reproducible detection efficiency, and it requires minimum sample preparation. Counting efficiencies were determined for aqueous solutions of P32, Na22, and C14 and for C14O2 gas.