A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE

C. Adams; M. Alrashed; R. An; J. Anthony; J. Asaadi; A. Ashkenazi; S. Balasubramanian; B. Baller; C. Barnes; G. Barr; V. Basque; M. Bass; F. Bay; S. Berkman; A. Bhanderi; A. Bhat; M. Bishai; A. Blake; T. Bolton; L. Camilleri; D. Caratelli; I. Caro Terrazas; R. Carr; R. Castillo Fernandez; F. Cavanna; G. Cerati; Y. Chen; E. Church; D. Cianci; E. O. Cohen; J. M. Conrad; M. Convery; L. Cooper-Troendle; J. I. Crespo-Anadón; M. Del Tutto; D. Devitt; A. Diaz; L. Domine; K. Duffy; S. Dytman; B. Eberly; A. Ereditato; L. Escudero Sanchez; J. J. Evans; R. S. Fitzpatrick; B. T. Fleming; N. Foppiani; D. Franco; A. P. Furmanski; D. Garcia-Gamez; S. Gardiner; V. Genty; D. Goeldi; S. Gollapinni; O. Goodwin; E. Gramellini; P. Green; H. Greenlee; R. Grosso; L. Gu; W. Gu; R. Guenette; P. Guzowski; P. Hamilton; O. Hen; C. Hill; G. A. Horton-Smith; A. Hourlier; E. C. Huang; R. Itay; C. James; J. Jan De Vries; X. Ji; L. Jiang; J. H. Jo; R. A. Johnson; J. Joshi; Y. J. Jwa; G. Karagiorgi; W. Ketchum; B. Kirby; M. Kirby; T. Kobilarcik; I. Kreslo; I. Lepetic; Y. Li; A. Lister; B. R. Littlejohn; S. Lockwitz; D. Lorca; W. C. Louis; M. Luethi; B. Lundberg; X. Luo; A. Marchionni; S. Marcocci; C. Mariani; J. Marshall; J. Martin-Albo; D. A.Martinez Caicedo; K. Mason; A. Mastbaum; N. McConkey; V. Meddage; T. Mettler; K. Miller; J. Mills; K. Mistry; A. Mogan; T. Mohayai; J. Moon; M. Mooney; C. D. Moore; J. Mousseau; M. Murphy; R. Murrells; D. Naples; R. K. Neely; P. Nienaber; J. Nowak; O. Palamara; V. Pandey; V. Paolone; A. Papadopoulou; V. Papavassiliou; S. F. Pate; A. Paudel; Z. Pavlovic; E. Piasetzky; D. Porzio; S. Prince; G. Pulliam; X. Qian; J. L. Raaf; V. Radeka; A. Rafique; L. Ren; L. Rochester; H. E. Rogers; M. Ross-Lonergan; C. Rudolf Von Rohr; B. Russell; G. Scanavini; D. W. Schmitz; A. Schukraft; W. Seligman; M. H. Shaevitz; R. Sharankova; J. Sinclair; A. Smith; E. L. Snider; M. Soderberg; S. Söldner-Rembold; S. R. Soleti; P. Spentzouris; J. Spitz; M. Stancari; J. St John; T. Strauss; K. Sutton; S. Sword-Fehlberg; A. M. Szelc; N. Tagg; W. Tang; K. Terao; R. T. Thornton; M. Toups; Y. T. Tsai; S. Tufanli; M. A. Uchida; T. Usher; W. Van De Pontseele; R. G.Van De Water; B. Viren; M. Weber; H. Wei; D. A. Wickremasinghe; Z. Williams; S. Wolbers; T. Wongjirad; K. Woodruff; M. Wospakrik; W. Wu; T. Yang; G. Yarbrough; L. E. Yates; G. P. Zeller; J. Zennamo; C. Zhang

doi:10.1088/1748-0221/15/07/P07010

A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE

C. Adams, M. Alrashed, R. An, J. Anthony, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, V. Basque, M. Bass, F. Bay, S. Berkman, A. Bhanderi, A. Bhat, M. Bishai, A. Blake, T. Bolton, L. CamilleriD. Caratelli, I. Caro Terrazas, R. Carr, R. Castillo Fernandez, F. Cavanna, G. Cerati, Y. Chen, E. Church, D. Cianci, E. O. Cohen, J. M. Conrad, M. Convery, L. Cooper-Troendle, J. I. Crespo-Anadón, M. Del Tutto, D. Devitt, A. Diaz, L. Domine, K. Duffy, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. J. Evans, R. S. Fitzpatrick, B. T. Fleming, N. Foppiani, D. Franco, A. P. Furmanski, D. Garcia-Gamez, S. Gardiner, V. Genty, D. Goeldi, S. Gollapinni, O. Goodwin, E. Gramellini, P. Green, H. Greenlee, R. Grosso, L. Gu, W. Gu, R. Guenette, P. Guzowski, P. Hamilton, O. Hen, C. Hill, G. A. Horton-Smith, A. Hourlier, E. C. Huang, R. Itay, C. James, J. Jan De Vries, X. Ji, L. Jiang, J. H. Jo, R. A. Johnson, J. Joshi, Y. J. Jwa, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, I. Lepetic, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, S. Marcocci, C. Mariani, J. Marshall, J. Martin-Albo, D. A.Martinez Caicedo, K. Mason, A. Mastbaum, N. McConkey, V. Meddage, T. Mettler, K. Miller, J. Mills, K. Mistry, A. Mogan, T. Mohayai, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, M. Murphy, R. Murrells, D. Naples, R. K. Neely, P. Nienaber, J. Nowak, O. Palamara, V. Pandey, V. Paolone, A. Papadopoulou, V. Papavassiliou, S. F. Pate, A. Paudel, Z. Pavlovic, E. Piasetzky, D. Porzio, S. Prince, G. Pulliam, X. Qian, J. L. Raaf, V. Radeka, A. Rafique, L. Ren, L. Rochester, H. E. Rogers, M. Ross-Lonergan, C. Rudolf Von Rohr, B. Russell, G. Scanavini, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, R. Sharankova, J. Sinclair, A. Smith, E. L. Snider, M. Soderberg, S. Söldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, M. Stancari, J. St John, T. Strauss, K. Sutton, S. Sword-Fehlberg, A. M. Szelc, N. Tagg, W. Tang, K. Terao, R. T. Thornton, M. Toups, Y. T. Tsai, S. Tufanli, M. A. Uchida, T. Usher, W. Van De Pontseele, R. G.Van De Water, B. Viren, M. Weber, H. Wei, D. A. Wickremasinghe, Z. Williams, S. Wolbers, T. Wongjirad, K. Woodruff, M. Wospakrik, W. Wu, T. Yang, G. Yarbrough, L. E. Yates, G. P. Zeller, J. Zennamo, C. Zhang

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

25 Scopus citations

Abstract

Liquid argon time projection chambers (LArTPCs) are now a standard detector technology for making accelerator neutrino measurements, due to their high material density, precise tracking, and calorimetric capabilities. An electric field (E-field) is required in such detectors to drift ionization electrons to the anode where they are collected. The E-field of a TPC is often approximated to be uniform between the anode and the cathode planes. However, significant distortions can appear from effects such as mechanical deformations, electrode failures, or the accumulation of space charge generated by cosmic rays. The latter effect is particularly relevant for detectors placed near the Earth's surface and with large drift distances and long drift time. To determine the E-field in situ, an ultraviolet (UV) laser system is installed in the MicroBooNE experiment at Fermi National Accelerator Laboratory. The purpose of this system is to provide precise measurements of the E-field, and to make it possible to correct for 3D spatial distortions due to E-field non-uniformities. Here we describe the methodology developed for deriving spatial distortions, the drift velocity and the E-field from UV-laser measurements.

Original language	English (US)
Article number	P07010
Journal	Journal of Instrumentation
Volume	15
Issue number	7
DOIs	https://doi.org/10.1088/1748-0221/15/07/P07010
State	Published - Jul 2020
Externally published	Yes

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© 2020 The Author(s).

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Adams, C., Alrashed, M., An, R., Anthony, J., Asaadi, J., Ashkenazi, A., Balasubramanian, S., Baller, B., Barnes, C., Barr, G., Basque, V., Bass, M., Bay, F., Berkman, S., Bhanderi, A., Bhat, A., Bishai, M., Blake, A., Bolton, T., ... Zhang, C. (2020). A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE. Journal of Instrumentation, 15(7), Article P07010. https://doi.org/10.1088/1748-0221/15/07/P07010

Adams, C, Alrashed, M, An, R, Anthony, J, Asaadi, J, Ashkenazi, A, Balasubramanian, S, Baller, B, Barnes, C, Barr, G, Basque, V, Bass, M, Bay, F, Berkman, S, Bhanderi, A, Bhat, A, Bishai, M, Blake, A, Bolton, T, Camilleri, L, Caratelli, D, Terrazas, IC, Carr, R, Fernandez, RC, Cavanna, F, Cerati, G, Chen, Y, Church, E, Cianci, D, Cohen, EO, Conrad, JM, Convery, M, Cooper-Troendle, L, Crespo-Anadón, JI, Tutto, MD, Devitt, D, Diaz, A, Domine, L, Duffy, K, Dytman, S, Eberly, B, Ereditato, A, Sanchez, LE, Evans, JJ, Fitzpatrick, RS, Fleming, BT, Foppiani, N, Franco, D, Furmanski, AP, Garcia-Gamez, D, Gardiner, S, Genty, V, Goeldi, D, Gollapinni, S, Goodwin, O, Gramellini, E, Green, P, Greenlee, H, Grosso, R, Gu, L, Gu, W, Guenette, R, Guzowski, P, Hamilton, P, Hen, O, Hill, C, Horton-Smith, GA, Hourlier, A, Huang, EC, Itay, R, James, C, De Vries, JJ, Ji, X, Jiang, L, Jo, JH, Johnson, RA, Joshi, J, Jwa, YJ, Karagiorgi, G, Ketchum, W, Kirby, B, Kirby, M, Kobilarcik, T, Kreslo, I, Lepetic, I, Li, Y, Lister, A, Littlejohn, BR, Lockwitz, S, Lorca, D, Louis, WC, Luethi, M, Lundberg, B, Luo, X, Marchionni, A, Marcocci, S, Mariani, C, Marshall, J, Martin-Albo, J, Caicedo, DAM, Mason, K, Mastbaum, A, McConkey, N, Meddage, V, Mettler, T, Miller, K, Mills, J, Mistry, K, Mogan, A, Mohayai, T, Moon, J, Mooney, M, Moore, CD, Mousseau, J, Murphy, M, Murrells, R, Naples, D, Neely, RK, Nienaber, P, Nowak, J, Palamara, O, Pandey, V, Paolone, V, Papadopoulou, A, Papavassiliou, V, Pate, SF, Paudel, A, Pavlovic, Z, Piasetzky, E, Porzio, D, Prince, S, Pulliam, G, Qian, X, Raaf, JL, Radeka, V, Rafique, A, Ren, L, Rochester, L, Rogers, HE, Ross-Lonergan, M, Rohr, CRV, Russell, B, Scanavini, G, Schmitz, DW, Schukraft, A, Seligman, W, Shaevitz, MH, Sharankova, R, Sinclair, J, Smith, A, Snider, EL, Soderberg, M, Söldner-Rembold, S, Soleti, SR, Spentzouris, P, Spitz, J, Stancari, M, John, JS, Strauss, T, Sutton, K, Sword-Fehlberg, S, Szelc, AM, Tagg, N, Tang, W, Terao, K, Thornton, RT, Toups, M, Tsai, YT, Tufanli, S, Uchida, MA, Usher, T, Pontseele, WVD, De Water, RGV, Viren, B, Weber, M, Wei, H, Wickremasinghe, DA, Williams, Z, Wolbers, S, Wongjirad, T, Woodruff, K, Wospakrik, M, Wu, W, Yang, T, Yarbrough, G, Yates, LE, Zeller, GP, Zennamo, J & Zhang, C 2020, 'A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE', Journal of Instrumentation, vol. 15, no. 7, P07010. https://doi.org/10.1088/1748-0221/15/07/P07010

@article{0944591070664ca8b2001dece78446ee,

title = "A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE",

abstract = "Liquid argon time projection chambers (LArTPCs) are now a standard detector technology for making accelerator neutrino measurements, due to their high material density, precise tracking, and calorimetric capabilities. An electric field (E-field) is required in such detectors to drift ionization electrons to the anode where they are collected. The E-field of a TPC is often approximated to be uniform between the anode and the cathode planes. However, significant distortions can appear from effects such as mechanical deformations, electrode failures, or the accumulation of space charge generated by cosmic rays. The latter effect is particularly relevant for detectors placed near the Earth's surface and with large drift distances and long drift time. To determine the E-field in situ, an ultraviolet (UV) laser system is installed in the MicroBooNE experiment at Fermi National Accelerator Laboratory. The purpose of this system is to provide precise measurements of the E-field, and to make it possible to correct for 3D spatial distortions due to E-field non-uniformities. Here we describe the methodology developed for deriving spatial distortions, the drift velocity and the E-field from UV-laser measurements.",

author = "C. Adams and M. Alrashed and R. An and J. Anthony and J. Asaadi and A. Ashkenazi and S. Balasubramanian and B. Baller and C. Barnes and G. Barr and V. Basque and M. Bass and F. Bay and S. Berkman and A. Bhanderi and A. Bhat and M. Bishai and A. Blake and T. Bolton and L. Camilleri and D. Caratelli and Terrazas, {I. Caro} and R. Carr and Fernandez, {R. Castillo} and F. Cavanna and G. Cerati and Y. Chen and E. Church and D. Cianci and Cohen, {E. O.} and Conrad, {J. M.} and M. Convery and L. Cooper-Troendle and Crespo-Anad{\'o}n, {J. I.} and Tutto, {M. Del} and D. Devitt and A. Diaz and L. Domine and K. Duffy and S. Dytman and B. Eberly and A. Ereditato and Sanchez, {L. Escudero} and Evans, {J. J.} and Fitzpatrick, {R. S.} and Fleming, {B. T.} and N. Foppiani and D. Franco and Furmanski, {A. P.} and D. Garcia-Gamez and S. Gardiner and V. Genty and D. Goeldi and S. Gollapinni and O. Goodwin and E. Gramellini and P. Green and H. Greenlee and R. Grosso and L. Gu and W. Gu and R. Guenette and P. Guzowski and P. Hamilton and O. Hen and C. Hill and Horton-Smith, {G. A.} and A. Hourlier and Huang, {E. C.} and R. Itay and C. James and {De Vries}, {J. Jan} and X. Ji and L. Jiang and Jo, {J. H.} and Johnson, {R. A.} and J. Joshi and Jwa, {Y. J.} and G. Karagiorgi and W. Ketchum and B. Kirby and M. Kirby and T. Kobilarcik and I. Kreslo and I. Lepetic and Y. Li and A. Lister and Littlejohn, {B. R.} and S. Lockwitz and D. Lorca and Louis, {W. C.} and M. Luethi and B. Lundberg and X. Luo and A. Marchionni and S. Marcocci and C. Mariani and J. Marshall and J. Martin-Albo and Caicedo, {D. A.Martinez} and K. Mason and A. Mastbaum and N. McConkey and V. Meddage and T. Mettler and K. Miller and J. Mills and K. Mistry and A. Mogan and T. Mohayai and J. Moon and M. Mooney and Moore, {C. D.} and J. Mousseau and M. Murphy and R. Murrells and D. Naples and Neely, {R. K.} and P. Nienaber and J. Nowak and O. Palamara and V. Pandey and V. Paolone and A. Papadopoulou and V. Papavassiliou and Pate, {S. F.} and A. Paudel and Z. Pavlovic and E. Piasetzky and D. Porzio and S. Prince and G. Pulliam and X. Qian and Raaf, {J. L.} and V. Radeka and A. Rafique and L. Ren and L. Rochester and Rogers, {H. E.} and M. Ross-Lonergan and Rohr, {C. Rudolf Von} and B. Russell and G. Scanavini and Schmitz, {D. W.} and A. Schukraft and W. Seligman and Shaevitz, {M. H.} and R. Sharankova and J. Sinclair and A. Smith and Snider, {E. L.} and M. Soderberg and S. S{\"o}ldner-Rembold and Soleti, {S. R.} and P. Spentzouris and J. Spitz and M. Stancari and John, {J. St} and T. Strauss and K. Sutton and S. Sword-Fehlberg and Szelc, {A. M.} and N. Tagg and W. Tang and K. Terao and Thornton, {R. T.} and M. Toups and Tsai, {Y. T.} and S. Tufanli and Uchida, {M. A.} and T. Usher and Pontseele, {W. Van De} and {De Water}, {R. G.Van} and B. Viren and M. Weber and H. Wei and Wickremasinghe, {D. A.} and Z. Williams and S. Wolbers and T. Wongjirad and K. Woodruff and M. Wospakrik and W. Wu and T. Yang and G. Yarbrough and Yates, {L. E.} and Zeller, {G. P.} and J. Zennamo and C. Zhang",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s).",

year = "2020",

month = jul,

doi = "10.1088/1748-0221/15/07/P07010",

language = "English (US)",

volume = "15",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd.",

number = "7",

}

TY - JOUR

T1 - A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE

AU - Adams, C.

AU - Alrashed, M.

AU - An, R.

AU - Anthony, J.

AU - Asaadi, J.

AU - Ashkenazi, A.

AU - Balasubramanian, S.

AU - Baller, B.

AU - Barnes, C.

AU - Barr, G.

AU - Basque, V.

AU - Bass, M.

AU - Bay, F.

AU - Berkman, S.

AU - Bhanderi, A.

AU - Bhat, A.

AU - Bishai, M.

AU - Blake, A.

AU - Bolton, T.

AU - Camilleri, L.

AU - Caratelli, D.

AU - Terrazas, I. Caro

AU - Carr, R.

AU - Fernandez, R. Castillo

AU - Cavanna, F.

AU - Cerati, G.

AU - Chen, Y.

AU - Church, E.

AU - Cianci, D.

AU - Cohen, E. O.

AU - Conrad, J. M.

AU - Convery, M.

AU - Cooper-Troendle, L.

AU - Crespo-Anadón, J. I.

AU - Tutto, M. Del

AU - Devitt, D.

AU - Diaz, A.

AU - Domine, L.

AU - Duffy, K.

AU - Dytman, S.

AU - Eberly, B.

AU - Ereditato, A.

AU - Sanchez, L. Escudero

AU - Evans, J. J.

AU - Fitzpatrick, R. S.

AU - Fleming, B. T.

AU - Foppiani, N.

AU - Franco, D.

AU - Furmanski, A. P.

AU - Garcia-Gamez, D.

AU - Gardiner, S.

AU - Genty, V.

AU - Goeldi, D.

AU - Gollapinni, S.

AU - Goodwin, O.

AU - Gramellini, E.

AU - Green, P.

AU - Greenlee, H.

AU - Grosso, R.

AU - Gu, L.

AU - Gu, W.

AU - Guenette, R.

AU - Guzowski, P.

AU - Hamilton, P.

AU - Hen, O.

AU - Hill, C.

AU - Horton-Smith, G. A.

AU - Hourlier, A.

AU - Huang, E. C.

AU - Itay, R.

AU - James, C.

AU - De Vries, J. Jan

AU - Ji, X.

AU - Jiang, L.

AU - Jo, J. H.

AU - Johnson, R. A.

AU - Joshi, J.

AU - Jwa, Y. J.

AU - Karagiorgi, G.

AU - Ketchum, W.

AU - Kirby, B.

AU - Kirby, M.

AU - Kobilarcik, T.

AU - Kreslo, I.

AU - Lepetic, I.

AU - Li, Y.

AU - Lister, A.

AU - Littlejohn, B. R.

AU - Lockwitz, S.

AU - Lorca, D.

AU - Louis, W. C.

AU - Luethi, M.

AU - Lundberg, B.

AU - Luo, X.

AU - Marchionni, A.

AU - Marcocci, S.

AU - Mariani, C.

AU - Marshall, J.

AU - Martin-Albo, J.

AU - Caicedo, D. A.Martinez

AU - Mason, K.

AU - Mastbaum, A.

AU - McConkey, N.

AU - Meddage, V.

AU - Mettler, T.

AU - Miller, K.

AU - Mills, J.

AU - Mistry, K.

AU - Mogan, A.

AU - Mohayai, T.

AU - Moon, J.

AU - Mooney, M.

AU - Moore, C. D.

AU - Mousseau, J.

AU - Murphy, M.

AU - Murrells, R.

AU - Naples, D.

AU - Neely, R. K.

AU - Nienaber, P.

AU - Nowak, J.

AU - Palamara, O.

AU - Pandey, V.

AU - Paolone, V.

AU - Papadopoulou, A.

AU - Papavassiliou, V.

AU - Pate, S. F.

AU - Paudel, A.

AU - Pavlovic, Z.

AU - Piasetzky, E.

AU - Porzio, D.

AU - Prince, S.

AU - Pulliam, G.

AU - Qian, X.

AU - Raaf, J. L.

AU - Radeka, V.

AU - Rafique, A.

AU - Ren, L.

AU - Rochester, L.

AU - Rogers, H. E.

AU - Ross-Lonergan, M.

AU - Rohr, C. Rudolf Von

AU - Russell, B.

AU - Scanavini, G.

AU - Schmitz, D. W.

AU - Schukraft, A.

AU - Seligman, W.

AU - Shaevitz, M. H.

AU - Sharankova, R.

AU - Sinclair, J.

AU - Smith, A.

AU - Snider, E. L.

AU - Soderberg, M.

AU - Söldner-Rembold, S.

AU - Soleti, S. R.

AU - Spentzouris, P.

AU - Spitz, J.

AU - Stancari, M.

AU - John, J. St

AU - Strauss, T.

AU - Sutton, K.

AU - Sword-Fehlberg, S.

AU - Szelc, A. M.

AU - Tagg, N.

AU - Tang, W.

AU - Terao, K.

AU - Thornton, R. T.

AU - Toups, M.

AU - Tsai, Y. T.

AU - Tufanli, S.

AU - Uchida, M. A.

AU - Usher, T.

AU - Pontseele, W. Van De

AU - De Water, R. G.Van

AU - Viren, B.

AU - Weber, M.

AU - Wei, H.

AU - Wickremasinghe, D. A.

AU - Williams, Z.

AU - Wolbers, S.

AU - Wongjirad, T.

AU - Woodruff, K.

AU - Wospakrik, M.

AU - Wu, W.

AU - Yang, T.

AU - Yarbrough, G.

AU - Yates, L. E.

AU - Zeller, G. P.

AU - Zennamo, J.

AU - Zhang, C.

PY - 2020/7

Y1 - 2020/7

N2 - Liquid argon time projection chambers (LArTPCs) are now a standard detector technology for making accelerator neutrino measurements, due to their high material density, precise tracking, and calorimetric capabilities. An electric field (E-field) is required in such detectors to drift ionization electrons to the anode where they are collected. The E-field of a TPC is often approximated to be uniform between the anode and the cathode planes. However, significant distortions can appear from effects such as mechanical deformations, electrode failures, or the accumulation of space charge generated by cosmic rays. The latter effect is particularly relevant for detectors placed near the Earth's surface and with large drift distances and long drift time. To determine the E-field in situ, an ultraviolet (UV) laser system is installed in the MicroBooNE experiment at Fermi National Accelerator Laboratory. The purpose of this system is to provide precise measurements of the E-field, and to make it possible to correct for 3D spatial distortions due to E-field non-uniformities. Here we describe the methodology developed for deriving spatial distortions, the drift velocity and the E-field from UV-laser measurements.

AB - Liquid argon time projection chambers (LArTPCs) are now a standard detector technology for making accelerator neutrino measurements, due to their high material density, precise tracking, and calorimetric capabilities. An electric field (E-field) is required in such detectors to drift ionization electrons to the anode where they are collected. The E-field of a TPC is often approximated to be uniform between the anode and the cathode planes. However, significant distortions can appear from effects such as mechanical deformations, electrode failures, or the accumulation of space charge generated by cosmic rays. The latter effect is particularly relevant for detectors placed near the Earth's surface and with large drift distances and long drift time. To determine the E-field in situ, an ultraviolet (UV) laser system is installed in the MicroBooNE experiment at Fermi National Accelerator Laboratory. The purpose of this system is to provide precise measurements of the E-field, and to make it possible to correct for 3D spatial distortions due to E-field non-uniformities. Here we describe the methodology developed for deriving spatial distortions, the drift velocity and the E-field from UV-laser measurements.

UR - http://www.scopus.com/inward/record.url?scp=85088032239&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85088032239&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/15/07/P07010

DO - 10.1088/1748-0221/15/07/P07010

M3 - Article

AN - SCOPUS:85088032239

SN - 1748-0221

VL - 15

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 7

M1 - P07010

ER -

A method to determine the electric field of liquid argon time projection chambers using a UV laser system and its application in MicroBooNE

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