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

P. Agnes; I. F.M. Albuquerque; T. Alexander; A. K. Alton; M. Ave; H. O. Back; G. Batignani; K. Biery; V. Bocci; G. Bonfini; W. M. Bonivento; B. Bottino; S. Bussino; M. Cadeddu; M. Cadoni; F. Calaprice; A. Caminata; N. Canci; A. Candela; M. Caravati; M. Cariello; M. Carlini; M. Carpinelli; S. Catalanotti; V. Cataudella; P. Cavalcante; S. Cavuoti; A. Chepurnov; C. Cicalò; A. G. Cocco; G. Covone; D. D'Angelo; S. Davini; A. De Candia; S. De Cecco; M. De Deo; G. De Filippis; G. De Rosa; A. V. Derbin; A. Devoto; F. Di Eusanio; M. D'Incecco; G. Di Pietro; C. Dionisi; M. Downing; D. D'Urso; E. Edkins; A. Empl; G. Fiorillo; K. Fomenko; D. Franco; F. Gabriele; C. Galbiati; C. Ghiano; S. Giagu; C. Giganti; G. K. Giovanetti; O. Gorchakov; A. M. Goretti; F. Granato; A. Grobov; M. Gromov; M. Guan; Y. Guardincerri; M. Gulino; B. R. Hackett; K. Herner; B. Hosseini; D. Hughes; P. Humble; E. V. Hungerford; Al Ianni; An Ianni; V. Ippolito; T. N. Johnson; K. Keeter; C. L. Kendziora; I. Kochanek; G. Koh; D. Korablev; G. Korga; A. Kubankin; M. Kuss; M. La Commara; M. Lai; X. Li; M. Lissia; G. Longo; A. A. Machado; I. N. Machulin; A. Mandarano; L. Mapelli; S. M. Mari; J. Maricic; C. J. Martoff; A. Messina; P. D. Meyers; R. Milincic; A. Monte; M. Morrocchi; V. N. Muratova; P. Musico; A. Navrer Agasson; A. O. Nozdrina; A. Oleinik; M. Orsini; F. Ortica; L. Pagani; M. Pallavicini; L. Pandola; E. Pantic; E. Paoloni; K. Pelczar; N. Pelliccia; E. Picciau; A. Pocar; S. Pordes; S. S. Poudel; H. Qian; F. Ragusa; M. Razeti; A. Razeto; A. L. Renshaw; M. Rescigno; Q. Riffard; A. Romani; B. Rossi; N. Rossi; D. Sablone; O. Samoylov; W. Sands; S. Sanfilippo; C. Savarese; B. Schlitzer; E. Segreto; D. A. Semenov; A. Shchagin; A. Sheshukov; P. N. Singh; M. D. Skorokhvatov; O. Smirnov; A. Sotnikov; C. Stanford; S. Stracka; Y. Suvorov; R. Tartaglia; G. Testera; A. Tonazzo; P. Trinchese; E. V. Unzhakov; M. Verducci; A. Vishneva; R. B. Vogelaar; M. Wada; T. J. Waldrop; H. Wang; Y. Wang; A. W. Watson; S. Westerdale; M. M. Wojcik; X. Xiang; X. Xiao; C. Yang; Z. Ye; C. Zhu; G. Zuzel

doi:10.1088/1748-0221/14/11/P11018

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

P. Agnes, I. F.M. Albuquerque, T. Alexander, A. K. Alton, M. Ave, H. O. Back, G. Batignani, K. Biery, V. Bocci, G. Bonfini, W. M. Bonivento, B. Bottino, S. Bussino, M. Cadeddu, M. Cadoni, F. Calaprice, A. Caminata, N. Canci, A. Candela, M. CaravatiM. Cariello, M. Carlini, M. Carpinelli, S. Catalanotti, V. Cataudella, P. Cavalcante, S. Cavuoti, A. Chepurnov, C. Cicalò, A. G. Cocco, G. Covone, D. D'Angelo, S. Davini, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, G. De Rosa, A. V. Derbin, A. Devoto, F. Di Eusanio, M. D'Incecco, G. Di Pietro, C. Dionisi, M. Downing, D. D'Urso, E. Edkins, A. Empl, G. Fiorillo, K. Fomenko, D. Franco, F. Gabriele, C. Galbiati, C. Ghiano, S. Giagu, C. Giganti, G. K. Giovanetti, O. Gorchakov, A. M. Goretti, F. Granato, A. Grobov, M. Gromov, M. Guan, Y. Guardincerri, M. Gulino, B. R. Hackett, K. Herner, B. Hosseini, D. Hughes, P. Humble, E. V. Hungerford, Al Ianni, An Ianni, V. Ippolito, T. N. Johnson, K. Keeter, C. L. Kendziora, I. Kochanek, G. Koh, D. Korablev, G. Korga, A. Kubankin, M. Kuss, M. La Commara, M. Lai, X. Li, M. Lissia, G. Longo, A. A. Machado, I. N. Machulin, A. Mandarano, L. Mapelli, S. M. Mari, J. Maricic, C. J. Martoff, A. Messina, P. D. Meyers, R. Milincic, A. Monte, M. Morrocchi, V. N. Muratova, P. Musico, A. Navrer Agasson, A. O. Nozdrina, A. Oleinik, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paoloni, K. Pelczar, N. Pelliccia, E. Picciau, A. Pocar, S. Pordes, S. S. Poudel, H. Qian, F. Ragusa, M. Razeti, A. Razeto, A. L. Renshaw, M. Rescigno, Q. Riffard, A. Romani, B. Rossi, N. Rossi, D. Sablone, O. Samoylov, W. Sands, S. Sanfilippo, C. Savarese, B. Schlitzer, E. Segreto, D. A. Semenov, A. Shchagin, A. Sheshukov, P. N. Singh, M. D. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, S. Stracka, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, P. Trinchese, E. V. Unzhakov, M. Verducci, A. Vishneva, R. B. Vogelaar, M. Wada, T. J. Waldrop, H. Wang, Y. Wang, A. W. Watson, S. Westerdale, M. M. Wojcik, X. Xiang, X. Xiao, C. Yang, Z. Ye, C. Zhu, G. Zuzel

Research output: Contribution to journal › Article › peer-review

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 cm} _Vs2.

Original language	English (US)
Article number	P11018
Journal	Journal of Instrumentation
Volume	4
Issue number	11
DOIs	https://doi.org/10.1088/1748-0221/14/11/P11018
State	Published - Nov 14 2019

All Science Journal Classification (ASJC) codes

Mathematical Physics
Instrumentation

Keywords

Dark Matter detectors (WIMPs, axions, etc.)
Noble liquid detectors (scintillation, ionization, double-phase)
Time projection chambers

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10.1088/1748-0221/14/11/P11018

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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., ... Zuzel, G. (2019). Measurement of the ion fraction and mobility of ²¹⁸Po produced in ²²²Rn decays in liquid argon. Journal of Instrumentation, 4(11), [P11018]. https://doi.org/10.1088/1748-0221/14/11/P11018

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. ; Cicalò, 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. ; Navrer Agasson, A. ; Nozdrina, 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. / Measurement of the ion fraction and mobility of ²¹⁸Po produced in ²²²Rn decays in liquid argon. In: Journal of Instrumentation. 2019 ; Vol. 4, No. 11.

@article{6f2155d43c154b489d1d62c761af2bf8,

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

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 cm Vs2.",

keywords = "Dark Matter detectors (WIMPs, axions, etc.), Noble liquid detectors (scintillation, ionization, double-phase), Time projection chambers",

author = "P. Agnes and Albuquerque, {I. F.M.} and T. Alexander and Alton, {A. K.} and M. Ave and Back, {H. O.} and G. Batignani and K. Biery and V. Bocci and G. Bonfini and Bonivento, {W. M.} and B. Bottino and S. Bussino and M. Cadeddu and M. Cadoni and F. Calaprice and A. Caminata and N. Canci and A. Candela and M. Caravati and M. Cariello and M. Carlini and M. Carpinelli and S. Catalanotti and V. Cataudella and P. Cavalcante and S. Cavuoti and A. Chepurnov and C. Cical{\`o} and Cocco, {A. G.} and G. Covone and D. D'Angelo and S. Davini and {De Candia}, A. and {De Cecco}, S. and {De Deo}, M. and {De Filippis}, G. and {De Rosa}, G. and Derbin, {A. V.} and A. Devoto and {Di Eusanio}, F. and M. D'Incecco and {Di Pietro}, G. and C. Dionisi and M. Downing and D. D'Urso and E. Edkins and A. Empl and G. Fiorillo and K. Fomenko and D. Franco and F. Gabriele and C. Galbiati and C. Ghiano and S. Giagu and C. Giganti and Giovanetti, {G. K.} and O. Gorchakov and Goretti, {A. M.} and F. Granato and A. Grobov and M. Gromov and M. Guan and Y. Guardincerri and M. Gulino and Hackett, {B. R.} and K. Herner and B. Hosseini and D. Hughes and P. Humble and Hungerford, {E. V.} and Al Ianni and An Ianni and V. Ippolito and Johnson, {T. N.} and K. Keeter and Kendziora, {C. L.} and I. Kochanek and G. Koh and D. Korablev and G. Korga and A. Kubankin and M. Kuss and {La Commara}, M. and M. Lai and X. Li and M. Lissia and G. Longo and Machado, {A. A.} and Machulin, {I. N.} and A. Mandarano and L. Mapelli and Mari, {S. M.} and J. Maricic and Martoff, {C. J.} and A. Messina and Meyers, {P. D.} and R. Milincic and A. Monte and M. Morrocchi and Muratova, {V. N.} and P. Musico and {Navrer Agasson}, A. and Nozdrina, {A. O.} and A. Oleinik and M. Orsini and F. Ortica and L. Pagani and M. Pallavicini and L. Pandola and E. Pantic and E. Paoloni and K. Pelczar and N. Pelliccia and E. Picciau and A. Pocar and S. Pordes and Poudel, {S. S.} and H. Qian and F. Ragusa and M. Razeti and A. Razeto and Renshaw, {A. L.} and M. Rescigno and Q. Riffard and A. Romani and B. Rossi and N. Rossi and D. Sablone and O. Samoylov and W. Sands and S. Sanfilippo and C. Savarese and B. Schlitzer and E. Segreto and Semenov, {D. A.} and A. Shchagin and A. Sheshukov and Singh, {P. N.} and Skorokhvatov, {M. D.} and O. Smirnov and A. Sotnikov and C. Stanford and S. Stracka and Y. Suvorov and R. Tartaglia and G. Testera and A. Tonazzo and P. Trinchese and Unzhakov, {E. V.} and M. Verducci and A. Vishneva and Vogelaar, {R. B.} and M. Wada and Waldrop, {T. J.} and H. Wang and Y. Wang and Watson, {A. W.} and S. Westerdale and Wojcik, {M. M.} and X. Xiang and X. Xiao and C. Yang and Z. Ye and C. Zhu and G. Zuzel",

note = "Funding Information: This work was supported by the US NSF (Grants PHY-0919363, PHY-1004072, PHY-1004054, PHY-1242585, PHY-1314483, PHY-1606912, PHY-1314507 and associated collaborative grants; grants PHY-1211308 and PHY-1455351), the Italian Istituto Nazionale di Fisica Nucleare (INFN), the US DOE (Contract Nos. DE-FG02-91ER40671 and DE-AC02-07CH11359), the Russian RSF (Grant No 16-12-10369), and the Polish NCN (Grant UMO-2014/15/B/ST2/02561). We thank the staff of the Fermilab Particle Physics, Scientific and Core Computing Divisions for their support. We acknowledge the financial support from the UnivEarthS Labex program of Sorbonne Paris Cit{\'e} (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), from S˜ ao Paulo Research Foundation (FAPESP) grant (2016/09084-0), and from Foundation for Polish Science (grant No. TEAM/2016-2/17). We would also like to thank Brian Mong for insightful discussions about ion mobility analyses.",

year = "2019",

month = nov,

day = "14",

doi = "10.1088/1748-0221/14/11/P11018",

language = "English (US)",

volume = "4",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd.",

number = "11",

}

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, 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, Muratova, VN, Musico, P, Navrer Agasson, A, Nozdrina, AO, 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, SS, Qian, H, Ragusa, F, Razeti, M, Razeto, A, Renshaw, AL, 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, DA, Shchagin, A, Sheshukov, A, Singh, PN, Skorokhvatov, MD, Smirnov, O, Sotnikov, A, Stanford, C, Stracka, S, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, EV, Verducci, M, Vishneva, A, Vogelaar, RB, Wada, M, Waldrop, TJ, Wang, H, Wang, Y, Watson, AW, Westerdale, S, Wojcik, MM, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C & Zuzel, G 2019, 'Measurement of the ion fraction and mobility of ²¹⁸Po produced in ²²²Rn decays in liquid argon', Journal of Instrumentation, vol. 4, no. 11, P11018. https://doi.org/10.1088/1748-0221/14/11/P11018

Measurement of the ion fraction and mobility of ²¹⁸Po produced in ²²²Rn decays in liquid argon. / 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.; Cicalò, 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.; Navrer Agasson, A.; Nozdrina, 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.

In: Journal of Instrumentation, Vol. 4, No. 11, P11018, 14.11.2019.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Measurement of the ion fraction and mobility of 218Po produced in 222Rn decays in liquid argon

AU - Agnes, P.

AU - Albuquerque, I. F.M.

AU - Alexander, T.

AU - Alton, A. K.

AU - Ave, M.

AU - Back, H. O.

AU - Batignani, G.

AU - Biery, K.

AU - Bocci, V.

AU - Bonfini, G.

AU - Bonivento, W. M.

AU - Bottino, B.

AU - Bussino, S.

AU - Cadeddu, M.

AU - Cadoni, M.

AU - Calaprice, F.

AU - Caminata, A.

AU - Canci, N.

AU - Candela, A.

AU - Caravati, M.

AU - Cariello, M.

AU - Carlini, M.

AU - Carpinelli, M.

AU - Catalanotti, S.

AU - Cataudella, V.

AU - Cavalcante, P.

AU - Cavuoti, S.

AU - Chepurnov, A.

AU - Cicalò, C.

AU - Cocco, A. G.

AU - Covone, G.

AU - D'Angelo, D.

AU - Davini, S.

AU - De Candia, A.

AU - De Cecco, S.

AU - De Deo, M.

AU - De Filippis, G.

AU - De Rosa, G.

AU - Derbin, A. V.

AU - Devoto, A.

AU - Di Eusanio, F.

AU - D'Incecco, M.

AU - Di Pietro, G.

AU - Dionisi, C.

AU - Downing, M.

AU - D'Urso, D.

AU - Edkins, E.

AU - Empl, A.

AU - Fiorillo, G.

AU - Fomenko, K.

AU - Franco, D.

AU - Gabriele, F.

AU - Galbiati, C.

AU - Ghiano, C.

AU - Giagu, S.

AU - Giganti, C.

AU - Giovanetti, G. K.

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N1 - Funding Information: This work was supported by the US NSF (Grants PHY-0919363, PHY-1004072, PHY-1004054, PHY-1242585, PHY-1314483, PHY-1606912, PHY-1314507 and associated collaborative grants; grants PHY-1211308 and PHY-1455351), the Italian Istituto Nazionale di Fisica Nucleare (INFN), the US DOE (Contract Nos. DE-FG02-91ER40671 and DE-AC02-07CH11359), the Russian RSF (Grant No 16-12-10369), and the Polish NCN (Grant UMO-2014/15/B/ST2/02561). We thank the staff of the Fermilab Particle Physics, Scientific and Core Computing Divisions for their support. We acknowledge the financial support from the UnivEarthS Labex program of Sorbonne Paris Cité (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), from S˜ ao Paulo Research Foundation (FAPESP) grant (2016/09084-0), and from Foundation for Polish Science (grant No. TEAM/2016-2/17). We would also like to thank Brian Mong for insightful discussions about ion mobility analyses.

PY - 2019/11/14

Y1 - 2019/11/14

N2 - 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 cm Vs2.

AB - 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 cm Vs2.

KW - Dark Matter detectors (WIMPs, axions, etc.)

KW - Noble liquid detectors (scintillation, ionization, double-phase)

KW - Time projection chambers

UR - http://www.scopus.com/inward/record.url?scp=85077807626&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85077807626&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/14/11/P11018

DO - 10.1088/1748-0221/14/11/P11018

M3 - Article

AN - SCOPUS:85077807626

VL - 4

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 11

M1 - P11018

ER -