학술논문

Measurement of the ion fraction and mobility of $^{218}$Po produced in $^{222}$Rn decays in liquid argon
Document Type
Working Paper
Author
Agnes, P.Albuquerque, I. F. M.Alexander, T.Alton, A. K.Ave, M.Back, H. O.Batignani, G.Biery, K.Bocci, V.Bonfini, G.Bonivento, W. M.Bottino, B.Bussino, S.Cadeddu, M.Cadoni, M.Calaprice, F.Caminata, A.Canci, N.Candela, A.Caravati, M.Cariello, M.Carlini, M.Carpinelli, M.Catalanotti, S.Cataudella, V.Cavalcante, P.Cavuoti, S.Chepurnov, A.Cicalo, C.Cocco, A. G.Covone, G.D'Angelo, D.Davini, S.De Candia, A.De Cecco, S.De Deo, M.De Filippis, G.De Rosa, G.Derbin, A. V.Devoto, A.Di Eusanio, F.D'Incecco, M.Di Pietro, G.Dionisi, C.Downing, M.D'Urso, D.Edkins, E.Empl, A.Fiorillo, G.Fomenko, K.Franco, D.Gabriele, F.Galbiati, C.Ghiano, C.Giagu, S.Giganti, C.Giovanetti, G. K.Gorchakov, O.Goretti, A. M.Granato, F.Grobov, A.Gromov, M.Guan, M.Guardincerri, Y.Gulino, M.Hackett, B. R.Herner, K.Hosseini, B.Hughes, D.Humble, P.Hungerford, E. V.Ianni, Al.Ianni, An.Ippolito, V.Johnson, T. N.Keeter, K.Kendziora, C. L.Kochanek, I.Koh, G.Korablev, D.Korga, G.Kubankin, A.Kuss, M.La Commara, M.Lai, M.Li, X.Lissia, M.Longo, G.Machado, A. A.Machulin, I. N.Mandarano, A.Mapelli, L.Mari, S. M.Maricic, J.Martoff, C. J.Messina, A.Meyers, P. D.Milincic, R.Monte, A.Morrocchi, M.Muratova, V. N.Musico, P.Agasson, A. NavrerNozdrina, A. O.Oleinik, A.Orsini, M.Ortica, F.Pagani, L.Pallavicini, M.Pandola, L.Pantic, E.Paoloni, E.Pelczar, K.Pelliccia, N.Picciau, E.Pocar, A.Pordes, S.Poudel, S. S.Qian, H.Ragusa, F.Razeti, M.Razeto, A.Renshaw, A. L.Rescigno, M.Riffard, Q.Romani, A.Rossi, B.Rossi, N.Sablone, D.Samoylov, O.Sands, W.Sanfilippo, S.Savarese, C.Schlitzer, B.Segreto, E.Semenov, D. A.Shchagin, A.Sheshukov, A.Singh, P. N.Skorokhvatov, M. D.Smirnov, O.Sotnikov, A.Stanford, C.Stracka, S.Suvorov, Y.Tartaglia, R.Testera, G.Tonazzo, A.Trinchese, P.Unzhakov, E. V.Verducci, M.Vishneva, A.Vogelaar, R. B.Wada, M.Waldrop, T. J.Wang, H.Wang, Y.Watson, A. W.Westerdale, S.Wojcik, M. M.Xiang, X.Xiao, X.Yang, C.Ye, Z.Zhu, C.Zuzel, G.
Source
JINST 14 P11018 (2019)
Subject
Astrophysics - Instrumentation and Methods for Astrophysics
Physics - Instrumentation and Detectors
Language
Abstract
We report measurements of the charged daughter fraction of $^{218}$Po as a result of the $^{222}$Rn alpha decay, and the mobility of $^{218}$Po$^+$ ions, using radon-polonium coincidences from the $^{238}$U chain identified in 532 live-days of DarkSide-50 WIMP-search data. The fraction of $^{218}$Po that is charged is found to be 0.37$\pm$0.03 and the mobility of $^{218}$Po$^+$ is (8.6$\pm$0.1)$\times$10$^{-4}$$\frac{\text{cm}^2}{\text{Vs}}$.