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Lifetimes of Po-214 and Po-212 measured with Counting Test Facility at Gran Sasso National Laboratory

Author(s): Miramonti, L; Bellini, G; Benziger, Jay B.; Bick, D; Bonfini, G; et al

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Abstract: We have studied the α decays of 214Po into 210Pb and of 212Po into 208Pb tagged by the coincidence with the preceding β decays from 214Bi and 212Bi, respectively. The 222Rn, 232Th, and 220Rn sources used were sealed inside quartz vials and inserted in the Counting Test Facility at the underground Gran Sasso National Laboratory in Italy. We find that the mean lifetime of 214Po is (236.00 ± 0.42(stat)±0.15(syst))µs and that of 212Po is (425.1±0.9(stat)±1.2(syst)) ns. Our results, obtained from data with signal–to–background ratio larger than 1000, reduce the overall uncertainties and are compatible with previous measurements.
Publication Date: Dec-2014
Electronic Publication Date: Dec-2014
Citation: Miramonti, L, Bellini, G, Benziger, J, Bick, D, Bonfini, G, Bravo, D, Avanzini, M Buizza, Caccianiga, B, Cadonati, L, Calaprice, F, Carraro, C, Cavalcante, P, Chavarria, A, Chubakov, V, D Angelo, D, Davini, S, Derbin, A, Etenko, A, Fomenko, K, Franco, D, Galbiati, C, Gazzana, S, Ghiano, C, Giammarchi, M, Goeger-Neff, M, Goretti, A, Grandi, L, Guardincerri, E, Hardy, S, Ianni, Aldo, Ianni, Andrea, Kobychev, V, Korablev, D, Korga, G, Koshio, Y, Kryn, D, Laubenstein, M, Lewke, T, Lissia, M, Litvinovich, E, Loer, B, Lombardi, F, Lombardi, P, Ludhova, L, Machulin, I, Manecki, S, Maneschg, W, Mantovani, F, Manuzio, G, Meindl, Q, Meroni, E, Misiaszek, M, Montanari, D, Mosteiro, P, Muratova, V, Nisi, S, Oberauer, L, Obolensky, M, Ortica, F, Otis, K, Pallavicini, M, Papp, L, Perasso, L, Perasso, S, Pocar, A, Ranucci, G, Razeto, A, Re, A, Romani, A, Rossi, N, Sabelnikov, A, Saldanha, R, Salvo, C, Schoenert, S, Simgen, H, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Sukhotin, S, Suvorov, Y, Tartaglia, R, Testera, G, Vignaud, D, Vogelaar, RB, von Feilitzsch, F, Winter, J, Wojcik, M, Wright, A, Wurm, M, Xhixha, G, Xu, J, Zaimidoroga, O, Zavatarelli, S, Zuzel, G, Collaboration, Borexino. (2014). Lifetimes of Po-214 and Po-212 measured with Counting Test Facility at Gran Sasso National Laboratory. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 138 (444 - 446. doi:10.1016/j.jenvrad.2014.02.025
DOI: doi:10.1016/j.jenvrad.2014.02.025
ISSN: 0265-931X
EISSN: 1879-1700
Pages: 444 - 446
Type of Material: Journal Article
Journal/Proceeding Title: Journal of Environmental Radioactivity
Version: Author's manuscript



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