Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC

Agnes, P.; Albuquerque, I.F.M.; Alexander, T.; Alton, A.K.; Asner, D.M.; Ave, M.P.; Back, H.O.; Baldin, B.; Batignani, G.; Biery, K.; Bocci, V.; Bonfini, G.; Bonivento, W.; Bossa, M.; Bottino, B.; Budano, F.; 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.; D'Incecco, M.; D'Urso, D.; Davini, S.; De Candia, A.; De Cecco, S.; De Deo, M.; De Filippis, G.; De Rosa, G.; De Vincenzi, M.; Demontis, P.; Derbin, A.V.; Devoto, A.; Di Eusanio, F.; Di Pietro, G.; Dionisi, C.; Edkins, E.; Fan, A.; Fiorillo, G.; Fomenko, K.; Franco, D.; Gabriele, F.; Gabrieli, A.; Galbiati, C.; Ghiano, C.; Giagu, S.; Giganti, C.; Giovanetti, G.K.; Goretti, A.M.; Granato, F.; Gromov, M.; Guan, M.; Guardincerri, Y.; Gulino, M.; Hackett, B.R.; Herner, K.; Hughes, D.; Humble, P.; Hungerford, E.V.; Ianni, A.; James, I.; Johnson, T.N.; Keeter, K.; Kendziora, C.L.; Kochanek, I.; Koh, G.; Korablev, D.; Korga, G.; Kubankin, A.; Kuss, M.; Li, X.; Lissia, M.; Loer, B.; Longo, G.; Ma, Y.; Machado, A.A.; Machulin, I.N.; Mandarano, A.; Mari, S.M.; Maricic, J.; Martoff, C.J.; Messina, A.; Meyers, P.D.; Milincic, R.; Monte, A.; Morrocchi, M.; Mount, B.J.; Muratova, V.N.; Musico, P.; Navrer Agasson, A.; Nozdrina, A.; Oleinik, A.; Orsini, M.; Ortica, F.; Pagani, L.; Pallavicini, M.; Pandola, L.; Pantic, E.; Paoloni, E.; Pazzona, F.; Pelczar, K.; Pelliccia, N.; Pocar, A.; Pordes, S.; Qian, H.; Razeti, M.; Razeto, A.; Reinhold, B.; Renshaw, A.L.; Rescigno, M.; Riffard, Q.; Romani, A.; Rossi, B.; Rossi, N.; Sablone, D.; Samoylov, O.; Sands, W.; Sanfilippo, S.; Sant, M.; Savarese, C.; Schlitzer, B.; Segreto, E.; Semenov, D.A.; Sheshukov, A.; Singh, P.N.; Skorokhvatov, M.D.; Smirnov, O.; Sotnikov, A.; Stanford, C.; Suffritti, G.B.; Suvorov, Y.; Tartaglia, R.; Testera, G.; Tonazzo, A.; Trinchese, P.; Unzhakov, E.V.; Verducci, M.; Vishneva, A.; Vogelaar, B.; Wada, M.; Waldrop, T.J.; Walker, S.; Wang, H.; Wang, Y.; Watson, A.W.; Westerdale, S.; Wojcik, M.M.; Xiang, X.; Xiao, X.; Yang, C.; Ye, Z.; Zhu, C.; Zuzel, G.

doi:10.1016/j.nima.2018.06.077

We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift electric fields of 100 V/cm, 150 V/cm, and 200 V/cm using high statistics 39 Ar decays from atmospheric argon. We derive an expression to describe the pulse shape of the electroluminescence signal (S2) in dual-phase TPCs. The derived S2 pulse shape is fit to events from the uppermost portion of the TPC in order to characterize the radial dependence of the signal. The results are provided as inputs to the measurement of the longitudinal diffusion constant D L , which we find to be (4.12 ± 0.09) cm 2 /s for a selection of 140 keV electron recoil events in 200 V/cm drift field and 2.8 kV/cm extraction field. To study the systematics of our measurement we examine data sets of varying event energy, field strength, and detector volume yielding a weighted average value for the diffusion constant of (4.09 ± 0.12) cm 2 /s. The measured longitudinal diffusion constant is observed to have an energy dependence, and within the studied energy range the result is systematically lower than other results in the literature.

Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC / P. Agnes, I.F.M. Albuquerque, T. Alexander, A.K. Alton, D.M. Asner, M.P. Ave, H.O. Back, B. Baldin, G. Batignani, K. Biery, V. Bocci, G. Bonfini, W. Bonivento, M. Bossa, B. Bottino, F. Budano, 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, M. D'Incecco, D. D'Urso, S. Davini, A. De Candia, S. De Cecco, M. De Deo, G. De Filippis, G. De Rosa, M. De Vincenzi, P. Demontis, A.V. Derbin, A. Devoto, F. Di Eusanio, G. Di Pietro, C. Dionisi, E. Edkins, A. Fan, G. Fiorillo, K. Fomenko, D. Franco, F. Gabriele, A. Gabrieli, C. Galbiati, C. Ghiano, S. Giagu, C. Giganti, G.K. Giovanetti, A.M. Goretti, F. Granato, M. Gromov, M. Guan, Y. Guardincerri, M. Gulino, B.R. Hackett, K. Herner, D. Hughes, P. Humble, E.V. Hungerford, A. Ianni, I. James, T.N. Johnson, K. Keeter, C.L. Kendziora, I. Kochanek, G. Koh, D. Korablev, G. Korga, A. Kubankin, M. Kuss, X. Li, M. Lissia, B. Loer, G. Longo, Y. Ma, A.A. Machado, I.N. Machulin, A. Mandarano, S.M. Mari, J. Maricic, C.J. Martoff, A. Messina, P.D. Meyers, R. Milincic, A. Monte, M. Morrocchi, B.J. Mount, V.N. Muratova, P. Musico, A. Navrer Agasson, A. Nozdrina, A. Oleinik, M. Orsini, F. Ortica, L. Pagani, M. Pallavicini, L. Pandola, E. Pantic, E. Paoloni, F. Pazzona, K. Pelczar, N. Pelliccia, A. Pocar, S. Pordes, H. Qian, M. Razeti, A. Razeto, B. Reinhold, A.L. Renshaw, M. Rescigno, Q. Riffard, A. Romani, B. Rossi, N. Rossi, D. Sablone, O. Samoylov, W. Sands, S. Sanfilippo, M. Sant, C. Savarese, B. Schlitzer, E. Segreto, D.A. Semenov, A. Sheshukov, P.N. Singh, M.D. Skorokhvatov, O. Smirnov, A. Sotnikov, C. Stanford, G.B. Suffritti, Y. Suvorov, R. Tartaglia, G. Testera, A. Tonazzo, P. Trinchese, E.V. Unzhakov, M. Verducci, A. Vishneva, B. Vogelaar, M. Wada, T.J. Waldrop, S. Walker, H. Wang, Y. Wang, A.W. Watson, S. Westerdale, M.M. Wojcik, X. Xiang, X. Xiao, C. Yang, Z. Ye, C. Zhu, G. Zuzel. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 904(2018 Oct 01), pp. 23-34. [10.1016/j.nima.2018.06.077]

Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC

Agnes, P.;Albuquerque, I. F. M.;Alexander, T.;Alton, A. K.;Asner, D. M.;Ave, M. P.;Back, H. O.;Baldin, B.;Batignani, G.;Biery, K.;Bocci, V.;Bonfini, G.;Bonivento, W.;Bossa, M.;Bottino, B.;Budano, F.;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. D'Angelo;D'Incecco, M.;D'Urso, D.;Davini, S.;De Candia, A.;De Cecco, S.;De Deo, M.;De Filippis, G.;De Rosa, G.;De Vincenzi, M.;Demontis, P.;Derbin, A. V.;Devoto, A.;Di Eusanio, F.;Di Pietro, G.;Dionisi, C.;Edkins, E.;Fan, A.;Fiorillo, G.;Fomenko, K.;Franco, D.;Gabriele, F.;Gabrieli, A.;Galbiati, C.;Ghiano, C.;Giagu, S.;Giganti, C.;Giovanetti, G. K.;Goretti, A. M.;Granato, F.;Gromov, M.;Guan, M.;Guardincerri, Y.;Gulino, M.;Hackett, B. R.;Herner, K.;Hughes, D.;Humble, P.;Hungerford, E. V.;Ianni, An.;James, I.;Johnson, T. N.;Keeter, K.;Kendziora, C. L.;Kochanek, I.;Koh, G.;Korablev, D.;Korga, G.;Kubankin, A.;Kuss, M.;Li, X.;Lissia, M.;Loer, B.;Longo, G.;Ma, Y.;Machado, A. A.;Machulin, I. N.;Mandarano, A.;Mari, S. M.;Maricic, J.;Martoff, C. J.;Messina, A.;Meyers, P. D.;Milincic, R.;Monte, A.;Morrocchi, M.;Mount, B. J.;Muratova, V. N.;Musico, P.;Navrer Agasson, A.;Nozdrina, A.;Oleinik, A.;Orsini, M.;Ortica, F.;Pagani, L.;Pallavicini, M.;Pandola, L.;Pantic, E.;Paoloni, E.;Pazzona, F.;Pelczar, K.;Pelliccia, N.;Pocar, A.;Pordes, S.;Qian, H.;Razeti, M.;Razeto, A.;Reinhold, B.;Renshaw, A. L.;Rescigno, M.;Riffard, Q.;Romani, A.;Rossi, B.;Rossi, N.;Sablone, D.;Samoylov, O.;Sands, W.;Sanfilippo, S.;Sant, M.;Savarese, C.;Schlitzer, B.;Segreto, E.;Semenov, D. A.;Sheshukov, A.;Singh, P. N.;Skorokhvatov, M. D.;Smirnov, O.;Sotnikov, A.;Stanford, C.;Suffritti, G. B.;Suvorov, Y.;Tartaglia, R.;Testera, G.;Tonazzo, A.;Trinchese, P.;Unzhakov, E. V.;Verducci, M.;Vishneva, A.;Vogelaar, B.;Wada, M.;Waldrop, T. J.;Walker, S.;Wang, H.;Wang, Y.;Watson, A. W.;Westerdale, S.;Wojcik, M. M.;Xiang, X.;Xiao, X.;Yang, C.;Ye, Z.;Zhu, C.;Zuzel, G.

2018

Abstract

We report the measurement of the longitudinal diffusion constant in liquid argon with the DarkSide-50 dual-phase time projection chamber. The measurement is performed at drift electric fields of 100 V/cm, 150 V/cm, and 200 V/cm using high statistics 39 Ar decays from atmospheric argon. We derive an expression to describe the pulse shape of the electroluminescence signal (S2) in dual-phase TPCs. The derived S2 pulse shape is fit to events from the uppermost portion of the TPC in order to characterize the radial dependence of the signal. The results are provided as inputs to the measurement of the longitudinal diffusion constant D L , which we find to be (4.12 ± 0.09) cm 2 /s for a selection of 140 keV electron recoil events in 200 V/cm drift field and 2.8 kV/cm extraction field. To study the systematics of our measurement we examine data sets of varying event energy, field strength, and detector volume yielding a weighted average value for the diffusion constant of (4.09 ± 0.12) cm 2 /s. The measured longitudinal diffusion constant is observed to have an energy dependence, and within the studied energy range the result is systematically lower than other results in the literature.

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Scheda completa (DC)

	Parole chiave
	
				Electron diffusion constant; Liquid argon; Time projection chamber
			
	Settori scientifico-disciplinari dell'articolo (sola visualizzazione)
	
				Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
			
	Data di pubblicazione
	
				1-ott-2018
			
	Rivista in ANCE
	
				NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT
			
	DOI
	
				https://dx.doi.org/10.1016/j.nima.2018.06.077
			
	Tipologia
	
				Article (author)
			
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				01 - Articolo su periodico

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