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Measurement of the ion fraction and mobility of 218Po produced in 222Rn decays in liquid argon

Authors :
Agnes, P
Albuquerque, IFM
Alexander, T
Alton, AK
Ave, M
Back, HO
Batignani, G
Biery, K
Bocci, V
Bonfini, G
Bonivento, WM
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
Cicalò, C
Cocco, AG
Covone, G
D'Angelo, D
Davini, S
De Candia, A
De Cecco, S
De Deo, M
De Filippis, G
De Rosa, G
Derbin, AV
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, GK
Gorchakov, O
Goretti, AM
Granato, F
Grobov, A
Gromov, M
Guan, M
Guardincerri, Y
Gulino, M
Hackett, BR
Herner, K
Hosseini, B
Hughes, D
Humble, P
Hungerford, EV
Ianni, A
Ippolito, V
Johnson, TN
Keeter, K
Kendziora, CL
Kochanek, I
Koh, G
Korablev, D
Korga, G
Kubankin, A
Kuss, M
La Commara, M
Lai, M
Li, X
Lissia, M
Longo, G
Machado, AA
Machulin, IN
Mandarano, A
Mapelli, L
Mari, SM
Maricic, J
Martoff, CJ
Messina, A
Meyers, PD
Milincic, R
Monte, A
Morrocchi, M
Source :
Journal of Instrumentation, vol 14, iss 11, Journal of Instrumentation, vol 4, iss 11
Publication Year :
2019
Publisher :
eScholarship, University of California, 2019.

Abstract

We report measurements of the charged daughter fraction of 218Po as a result of the 222Rn alpha decay, and the mobility of 218Po+ ions, using radon-polonium coincidences from the 238U chain identified in 532 live-days of DarkSide-50 WIMP-search data. The fraction of 218Po that is charged is found to be 0.37 ± 0.03 and the mobility of 218Po+ is (8.6 ± 0.1) × 10−4 cmVs2.

Details

Database :
OpenAIRE
Journal :
Journal of Instrumentation, vol 14, iss 11, Journal of Instrumentation, vol 4, iss 11
Accession number :
edsair.dedup.wf.001..3b906e4fc002b8510170e9c786b8b442