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; An 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; Peter Daniel 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

doi:10.1016/j.nima.2018.06.077

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. CalapriceA. 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, An 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, Peter Daniel 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

Research output: Contribution to journal › Article

8 Scopus citations

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 ³⁹Ar 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) cm²/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) cm²/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.

Original language	English (US)
Pages (from-to)	23-34
Number of pages	12
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	904
DOIs	https://doi.org/10.1016/j.nima.2018.06.077
State	Published - Oct 1 2018

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Instrumentation

Keywords

Electron diffusion constant
Liquid argon
Time projection chamber

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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., ... Zuzel, G. (2018). Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 904, 23-34. https://doi.org/10.1016/j.nima.2018.06.077

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, 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, Peter Daniel ; 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. / Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2018 ; Vol. 904. pp. 23-34.

@article{c165d30d30ed4d11b39bad982087f114,

title = "Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC",

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 39Ar 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 DL, which we find to be (4.12 ± 0.09) cm2/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) cm2/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.",

keywords = "Electron diffusion constant, Liquid argon, Time projection chamber",

author = "P. Agnes and Albuquerque, {I. F.M.} and T. Alexander and Alton, {A. K.} and Asner, {D. M.} and Ave, {M. P.} and Back, {H. O.} and B. Baldin and G. Batignani and K. Biery and V. Bocci and G. Bonfini and W. Bonivento and M. Bossa and B. Bottino and F. Budano 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 M. D'Incecco and D. D'Urso and S. Davini and {De Candia}, A. and {De Cecco}, S. and {De Deo}, M. and {De Filippis}, G. and {De Rosa}, G. and {De Vincenzi}, M. and P. Demontis and Derbin, {A. V.} and A. Devoto and {Di Eusanio}, F. and {Di Pietro}, G. and C. Dionisi and E. Edkins and A. Fan and G. Fiorillo and K. Fomenko and D. Franco and F. Gabriele and A. Gabrieli and C. Galbiati and C. Ghiano and S. Giagu and C. Giganti and Giovanetti, {G. K.} and Goretti, {A. M.} and F. Granato and M. Gromov and M. Guan and Y. Guardincerri and M. Gulino and Hackett, {B. R.} and K. Herner and D. Hughes and P. Humble and Hungerford, {E. V.} and An Ianni and I. James 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 X. Li and M. Lissia and B. Loer and G. Longo and Y. Ma and Machado, {A. A.} and Machulin, {I. N.} and A. Mandarano and Mari, {S. M.} and J. Maricic and Martoff, {C. J.} and A. Messina and Meyers, {Peter Daniel} and R. Milincic and A. Monte and M. Morrocchi and Mount, {B. J.} and Muratova, {V. N.} and P. Musico and {Navrer Agasson}, A. and A. Nozdrina 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 F. Pazzona and K. Pelczar and N. Pelliccia and A. Pocar and S. Pordes and H. Qian and M. Razeti and A. Razeto and B. Reinhold 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 M. Sant and C. Savarese and B. Schlitzer and E. Segreto and Semenov, {D. A.} and A. Sheshukov and Singh, {P. N.} and Skorokhvatov, {M. D.} and O. Smirnov and A. Sotnikov and C. Stanford and Suffritti, {G. B.} 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 B. Vogelaar and M. Wada and Waldrop, {T. J.} and S. Walker 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",

year = "2018",

month = oct,

day = "1",

doi = "10.1016/j.nima.2018.06.077",

language = "English (US)",

volume = "904",

pages = "23--34",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

}

Agnes, P, Albuquerque, IFM, Alexander, T, Alton, AK, Asner, DM, Ave, MP, Back, HO, 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, AG, 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, AV, 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, GK, Goretti, AM, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, BR, Herner, K, Hughes, D, Humble, P, Hungerford, EV, Ianni, A, James, I, Johnson, TN, Keeter, K, Kendziora, CL, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, Li, X, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, AA, Machulin, IN, Mandarano, A, Mari, SM, Maricic, J, Martoff, CJ, Messina, A, Meyers, PD, Milincic, R, Monte, A, Morrocchi, M, Mount, BJ, Muratova, VN, 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, AL, 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, DA, Sheshukov, A, Singh, PN, Skorokhvatov, MD, Smirnov, O, Sotnikov, A, Stanford, C, Suffritti, GB, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, EV, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, TJ, Walker, S, Wang, H, Wang, Y, Watson, AW, Westerdale, S, Wojcik, MM, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C & Zuzel, G 2018, 'Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 904, pp. 23-34. https://doi.org/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'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, 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, Peter Daniel; 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.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 904, 01.10.2018, p. 23-34.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Electroluminescence pulse shape and electron diffusion in liquid argon measured in a dual-phase TPC

AU - Agnes, P.

AU - Albuquerque, I. F.M.

AU - Alexander, T.

AU - Alton, A. K.

AU - Asner, D. M.

AU - Ave, M. P.

AU - Back, H. O.

AU - Baldin, B.

AU - Batignani, G.

AU - Biery, K.

AU - Bocci, V.

AU - Bonfini, G.

AU - Bonivento, W.

AU - Bossa, M.

AU - Bottino, B.

AU - Budano, F.

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 - D'Incecco, M.

AU - D'Urso, 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 - De Vincenzi, M.

AU - Demontis, P.

AU - Derbin, A. V.

AU - Devoto, A.

AU - Di Eusanio, F.

AU - Di Pietro, G.

AU - Dionisi, C.

AU - Edkins, E.

AU - Fan, A.

AU - Fiorillo, G.

AU - Fomenko, K.

AU - Franco, D.

AU - Gabriele, F.

AU - Gabrieli, A.

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PY - 2018/10/1

Y1 - 2018/10/1

N2 - 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 39Ar 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 DL, which we find to be (4.12 ± 0.09) cm2/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) cm2/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.

AB - 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 39Ar 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 DL, which we find to be (4.12 ± 0.09) cm2/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) cm2/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.

KW - Electron diffusion constant

KW - Liquid argon

KW - Time projection chamber

UR - http://www.scopus.com/inward/record.url?scp=85049961328&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049961328&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2018.06.077

DO - 10.1016/j.nima.2018.06.077

M3 - Article

AN - SCOPUS:85049961328

VL - 904

SP - 23

EP - 34

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

ER -