Studies of surface and bulk210Po in metals using an ultra-low background large surface alpha spectrometer.
First measurements of natural surface and bulk210Po specific activities for metals are reported. If covered with protective foils, the surfaces did not show indications of210Po and the obtained upper limits are in the range of single mBqm-2. Weak bulk activities, in the range of 50 - 280mBqkg-1, were registered for Stainless Steel and Copper, while significant amounts of210Po, ∼1.5Bqkg-1, were detected in Titanium. One special Teflon sample was investigated with respect to its bulk210Po.
M. Smoluchowski Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland. Electronic address: grzegorz.zuzel@uj.edu.pl.
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Zuzel
M. Smoluchowski Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland.
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Pelczar
M. Smoluchowski Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland.
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Wójcik
(210)Po; Alpha spectroscopy; Surface and bulk (210)Po in metals and Teflon