Scintillator ageing of the T2K near detectors from 2010 to 2021

T2K Collaboration; The T2K Collaboration; K. Abe; N. Akhlaq; R. Akutsu; A. Ali; C. Alt; C. Andreopoulos; G. J. Barker; A. Blondel; A. J. Carter; S. L. Cartwright; J. Coleman; L. Cook; F. Di Lodovico; T. A. Doyle; A. J. Finch; D. A. Harris; S. J. Jenkins; J. J. Jiang; T. Katori; S. King; A. Knight; N. Latham; Y. Lee; C. Lin; S. -K. Lin; S. L. Liu; K. R. Long; X. Lu; K. Mahn; D. G. R. Martin; M. Martini; J. F. Martin; C. Mauger; V. Q. Nguyen; L. O'Sullivan; D. Payne; M. Scott; A. Suzuki; L. F. Thompson; J. G. Walsh; Y. Wang; A. Weber; J. R. Wilson; J. Xia; K. Yamamoto; M. Yu; X. Zhao; T. Zhu; S. Zsoldos

Scintillator ageing of the T2K near detectors from 2010 to 2021

T2K Collaboration, The T2K Collaboration, K. Abe, N. Akhlaq, R. Akutsu, A. Ali, C. Alt, C. Andreopoulos, G. J. Barker, A. Blondel, A. J. Carter, S. L. Cartwright, J. Coleman, L. Cook, F. Di Lodovico, T. A. Doyle, A. J. Finch, D. A. Harris, S. J. Jenkins, J. J. JiangT. Katori, S. King, A. Knight, N. Latham, Y. Lee, C. Lin, S. -K. Lin, S. L. Liu, K. R. Long, X. Lu, K. Mahn, D. G. R. Martin, M. Martini, J. F. Martin, C. Mauger, V. Q. Nguyen, L. O'Sullivan, D. Payne, M. Scott, A. Suzuki, L. F. Thompson, J. G. Walsh, Y. Wang, A. Weber, J. R. Wilson, J. Xia, K. Yamamoto, M. Yu, X. Zhao, T. Zhu, S. Zsoldos

Joint Institute for Nuclear Research, Dubna

Research output: Working paper/Preprint › Preprint

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Abstract

The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.

Original language	English
Publication status	Published - 26 Jul 2022

Keywords

physics.ins-det
hep-ex

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2207.12982v1

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@techreport{08515a1275a548dfa140420aeb15377b,

title = "Scintillator ageing of the T2K near detectors from 2010 to 2021",

abstract = "The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.",

keywords = "physics.ins-det, hep-ex",

author = "{T2K Collaboration} and Collaboration, {The T2K} and K. Abe and N. Akhlaq and R. Akutsu and A. Ali and C. Alt and C. Andreopoulos and Barker, {G. J.} and A. Blondel and Carter, {A. J.} and Cartwright, {S. L.} and J. Coleman and L. Cook and Lodovico, {F. Di} and Doyle, {T. A.} and Finch, {A. J.} and Harris, {D. A.} and Jenkins, {S. J.} and Jiang, {J. J.} and T. Katori and S. King and A. Knight and N. Latham and Y. Lee and C. Lin and Lin, {S. -K.} and Liu, {S. L.} and Long, {K. R.} and X. Lu and K. Mahn and Martin, {D. G. R.} and M. Martini and Martin, {J. F.} and C. Mauger and Nguyen, {V. Q.} and L. O'Sullivan and D. Payne and M. Scott and A. Suzuki and Thompson, {L. F.} and Walsh, {J. G.} and Y. Wang and A. Weber and Wilson, {J. R.} and J. Xia and K. Yamamoto and M. Yu and X. Zhao and T. Zhu and S. Zsoldos",

note = "29 pages, 18 figures. Prepared for submission to JINST",

year = "2022",

month = jul,

day = "26",

language = "English",

type = "WorkingPaper",

}

T2K Collaboration, Collaboration, TTK, Abe, K, Akhlaq, N, Akutsu, R, Ali, A, Alt, C, Andreopoulos, C, Barker, GJ , Blondel, A , Carter, AJ , Cartwright, SL , Coleman, J , Cook, L , Lodovico, FD , Doyle, TA , Finch, AJ , Harris, DA , Jenkins, SJ, Jiang, JJ, Katori, T, King, S, Knight, A , Latham, N , Lee, Y , Lin, C , Lin, S-K, Liu, SL, Long, KR, Lu, X , Mahn, K , Martin, DGR , Martini, M , Martin, JF, Mauger, C, Nguyen, VQ , O'Sullivan, L , Payne, D , Scott, M , Suzuki, A , Thompson, LF, Walsh, JG, Wang, Y , Weber, A , Wilson, JR , Xia, J , Yamamoto, K , Yu, M , Zhao, X , Zhu, T & Zsoldos, S 2022 'Scintillator ageing of the T2K near detectors from 2010 to 2021'.

TY - UNPB

T1 - Scintillator ageing of the T2K near detectors from 2010 to 2021

AU - T2K Collaboration

AU - Collaboration, The T2K

AU - Abe, K.

AU - Akhlaq, N.

AU - Akutsu, R.

AU - Ali, A.

AU - Alt, C.

AU - Andreopoulos, C.

AU - Barker, G. J.

AU - Blondel, A.

AU - Carter, A. J.

AU - Cartwright, S. L.

AU - Coleman, J.

AU - Cook, L.

AU - Lodovico, F. Di

AU - Doyle, T. A.

AU - Finch, A. J.

AU - Harris, D. A.

AU - Jenkins, S. J.

AU - Jiang, J. J.

AU - Katori, T.

AU - King, S.

AU - Knight, A.

AU - Latham, N.

AU - Lee, Y.

AU - Lin, C.

AU - Lin, S. -K.

AU - Liu, S. L.

AU - Long, K. R.

AU - Lu, X.

AU - Mahn, K.

AU - Martin, D. G. R.

AU - Martini, M.

AU - Martin, J. F.

AU - Mauger, C.

AU - Nguyen, V. Q.

AU - O'Sullivan, L.

AU - Payne, D.

AU - Scott, M.

AU - Suzuki, A.

AU - Thompson, L. F.

AU - Walsh, J. G.

AU - Wang, Y.

AU - Weber, A.

AU - Wilson, J. R.

AU - Xia, J.

AU - Yamamoto, K.

AU - Yu, M.

AU - Zhao, X.

AU - Zhu, T.

AU - Zsoldos, S.

N1 - 29 pages, 18 figures. Prepared for submission to JINST

PY - 2022/7/26

Y1 - 2022/7/26

N2 - The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.

AB - The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.

KW - physics.ins-det

KW - hep-ex

M3 - Preprint

BT - Scintillator ageing of the T2K near detectors from 2010 to 2021

ER -

Scintillator ageing of the T2K near detectors from 2010 to 2021

Abstract

Keywords

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