Abstract

Isotopic ratios of polonium, produced by proton bombardment of Bi209, were determined from electrodeless discharge tubes by spectrographic methods. The ratios of polonium-209 to polonium-208 were calculated from intensity ratios of the band heads due to the two molecules, (Po208)2 and (Po208Po209). It was found that a result with a probable error of ±6% could be obtained from a single spectrogram. Comparison of spectrographic analysis with proton energy-yield data indicated agreement of the order of ±20%.

© 1956 Optical Society of America

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