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Simulation of charge readout with segmented tiles in nEXO

Publication ,  Journal Article
Li, Z; Cen, WR; Robinson, A; Moore, DC; Wen, LJ; Odian, A; Kharusi, SA; Anton, G; Arnquist, IJ; Badhrees, I; Barbeau, PS; Beck, D; Belov, V ...
Published in: Journal of Instrumentation
September 24, 2019

nEXO is a proposed experiment to search for the neutrino-less double beta decay (0νββ) of 136Xe in a tonne-scale liquid xenon time projection chamber (TPC) . The nEXO TPC will be equipped with charge collection tiles to form the anode. In this work, the charge reconstruction performance of this anode design is studied with a dedicated simulation package. A multi-variate method and a deep neural network are developed to distinguish simulated 0νββ signals from backgrounds arising from trace levels of natural radioactivity in the detector materials. These simulations indicate that the nEXO TPC with charge-collection tiles shows promising capability to discriminate the 0νββ signal from backgrounds. The estimated half-life sensitivity for 0νββ decay is improved by ∼20 (32)% with the multi-variate (deep neural network) methods considered here, relative to the sensitivity estimated in the nEXO pre-conceptual design report.

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Published In

Journal of Instrumentation

DOI

EISSN

1748-0221

Publication Date

September 24, 2019

Volume

14

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
 

Citation

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Li, Z., Cen, W. R., Robinson, A., Moore, D. C., Wen, L. J., Odian, A., … Ostrovskiy, I. (2019). Simulation of charge readout with segmented tiles in nEXO. Journal of Instrumentation, 14(9). https://doi.org/10.1088/1748-0221/14/09/P09020
Li, Z., W. R. Cen, A. Robinson, D. C. Moore, L. J. Wen, A. Odian, S. A. Kharusi, et al. “Simulation of charge readout with segmented tiles in nEXO.” Journal of Instrumentation 14, no. 9 (September 24, 2019). https://doi.org/10.1088/1748-0221/14/09/P09020.
Li Z, Cen WR, Robinson A, Moore DC, Wen LJ, Odian A, et al. Simulation of charge readout with segmented tiles in nEXO. Journal of Instrumentation. 2019 Sep 24;14(9).
Li, Z., et al. “Simulation of charge readout with segmented tiles in nEXO.” Journal of Instrumentation, vol. 14, no. 9, Sept. 2019. Scopus, doi:10.1088/1748-0221/14/09/P09020.
Li Z, Cen WR, Robinson A, Moore DC, Wen LJ, Odian A, Kharusi SA, Anton G, Arnquist IJ, Badhrees I, Barbeau PS, Beck D, Belov V, Bhatta T, Brodsky JP, Brown E, Brunner T, Caden E, Cao GF, Cao L, Chambers C, Chana B, Charlebois SA, Chiu M, Cleveland B, Coon M, Craycraft A, Dalmasson J, Daniels T, Darroch L, Daugherty SJ, Croix ADS, Mesrobian-Kabakian AD, Devoe R, Vacri MLD, Dilling J, Ding YY, Dolinski MJ, Dragone A, Echevers J, Elbeltagi M, Fabris L, Fairbank D, Fairbank W, Farine J, Ferrara S, Feyzbakhsh S, Fontaine R, Fucarino A, Gallina G, Gautam P, Giacomini G, Goeldi D, Gornea R, Gratta G, Hansen EV, Heffner M, Hoppe EW, Hößl J, House A, Hughes M, Iverson A, Jamil A, Jewell MJ, Jiang XS, Karelin A, Kaufman LJ, Kodroff D, Koffas T, Krücken R, Kuchenkov A, Kumar KS, Lan Y, Larson A, Leach KG, Lenardo BG, Leonard DS, Li G, Li S, Licciardi C, Lin YH, Lv P, Maclellan R, McElroy T, Medina-Peregrina M, Michel T, Mong B, Murray K, Nakarmi P, Natzke CR, Newby RJ, Ning Z, Njoya O, Nolet F, Nusair O, Odgers K, Oriunno M, Orrell JL, Ortega GS, Ostrovskiy I. Simulation of charge readout with segmented tiles in nEXO. Journal of Instrumentation. 2019 Sep 24;14(9).
Journal cover image

Published In

Journal of Instrumentation

DOI

EISSN

1748-0221

Publication Date

September 24, 2019

Volume

14

Issue

9

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences