Lifetimes of (214)Po and (212)Po measured with Counting Test Facility at Gran Sasso National Laboratory.
J Environ Radioact
; 138: 444-6, 2014 Dec.
Article
em En
| MEDLINE
| ID: mdl-24725806
ABSTRACT
The decays of (214)Po into (210)Pb and of (212)Po into (208)Pb tagged by the previous decays from (214)Bi and (212)Bi have been studied inserting quartz vials inside the Counting Test Facility (CTF) at the underground laboratory in Gran Sasso (LNGS). We find that the mean lifetime of (214)Po is (236.00 ± 0.42(stat) ± 0.15(syst)) µs and that of (212)Po is (425.1 ± 0.9(stat) ± 1.2(syst)) ns. Our results are compatible with previous measurements, have a much better signal to background ratio, and reduce the overall uncertainties.
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MEDLINE
Assunto principal:
Poluentes Radioativos
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Radioisótopos de Chumbo
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Polônio
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article