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. The long component of the attenuation length of the wavelength shifting

fibres was observed to degrade by 1.3–5.4% per year, while the short component of the attenuation

length did not show any conclusive degradation.

Metadata

Item Type:	Article
Authors/Creators:	Abe, K Akhlaq, N Akutsu, R Ali, A Alt, C Andreopoulos, C Antonova, M Aoki, S Arihara, T Asada, Y Ashida, Y Atkin, ET Ban, S Barbi, M Barker, GJ Barr, G Barrow, D Batkiewicz-Kwasniak, M Bench, F Berardi, V Berns, L Bhadra, S Blanchet, A Blondel, A Bolognesi, S Bonus, T Bordoni, S Boyd, SB Bravar, A Bronner, C Bron, S Bubak, A Buizza Avanzini, M Calabria, NF Cao, S Carter, AJ Cartwright, SL Catanesi, MG Cervera, A Chakrani, J Cherdack, D Christodoulou, G Cicerchia, M Coleman, J Collazuol, G Cook, L Cudd, A Davydov, YI De Roeck, A De Rosa, G Dealtry, T Delogu, CC Densham, C Dergacheva, A Di Lodovico, F Dolan, S Douqa, D Doyle, TA Drapier, O Duffy, KE Dumarchez, J Dunne, P Dygnarowicz, K Eguchi, A Emery-Schrenk, S Ershova, A Fedotov, S Fernandez, P Finch, AJ Fiorentini Aguirre, GA Fiorillo, G Friend, M Fujii, Y Fukuda, Y Fusshoeller, K Giganti, C Glagolev, V Gonin, M Goodman, EAG Gorin, A Grassi, M Guigue, M Hadley, DR Haigh, JT Hamacher-Baumann, P Harris, DA Hartz, M Hasegawa, T Hassani, S Hastings, NC Hatzikoutelis, A Hayato, Y Hiramoto, A Hogan, M Holeczek, J Holin, A Holvey, TJ Hong Van, NT Honjo, T Iacob, F Ichikawa, AK Ikeda, M Ishida, T Ishitsuka, M Israel, HT Ives, SJ Iwamoto, K Izmaylov, A Izumi, N Jakkapu, M Jamieson, B Jenkins, SJ Jesús-Valls, C Jiang, JJ Jonsson, P Jung, CK Jurj, PB Kabirnezhad, M Kaboth, AC Kajita, T Kakuno, H Kameda, J Kasetti, SP Kataoka, Y Katayama, Y Katori, T Kawaue, M Kearns, E Khabibullin, M Khotjantsev, A Kikawa, T Kikutani, H King, S Kisiel, J Knight, A Kobata, T Kobayashi, T Koch, L Kogan, G Konaka, A Kormos, LL Koshio, Y Kostin, A Kowalik, K Kudenko, Y Kuribayashi, S Kurjata, R Kutter, T Kuze, M La Commara, M Labarga, L Lachner, K Lagoda, J Lakshmi, SM Lamers James, M Lamont, I Lamoureux, M Last, D Latham, N Laveder, M Lawe, M Lee, Y Lin, C Lindner, T Lin, S-K Litchfield, RP Liu, SL Longhin, A Long, KR Ludovici, L Lu, X Lux, T Machado, LN Magaletti, L Mahn, K Malek, M Mandal, M Manly, S Marino, AD Marti-Magro, L Martin, DGR Martini, M Martin, JF Maruyama, T Matsubara, T Matveev, V Mauger, C Mavrokoridis, K Mazzucato, E McCauley, N McElwee, J McFarland, KS McGrew, C Mefodiev, A Megias, GD Mellet, L Metelko, C Mezzetto, M Minamino, A Mineev, O Mine, S Miura, M Molina Bueno, L Moriyama, S Mueller, TA Munford, D Munteanu, L Nagai, K Nagai, Y Nakadaira, T Nakagiri, K Nakahata, M Nakajima, Y Nakamura, A Nakamura, H Nakamura, K Nakano, Y Nakayama, S Nakaya, T Nakayoshi, K Naseby, CER Ngoc, TV Nguyen, VQ Niewczas, K Nishimura, Y Nishizaki, K Nova, F Novella, P Nugent, JC O'Keeffe, HM O'Sullivan, L Odagawa, T Ogawa, T Okada, R Okumura, K Okusawa, T Owen, RA Oyama, Y Palladino, V Paolone, V Pari, M Parlone, J Parsa, S Pasternak, J Pavin, M Payne, D Penn, GC Perkin, JD Pershey, D Pickering, L Pidcott, C Pintaudi, G Pistillo, C Popov, B Porwit, K Posiadala-Zezula, M Prabhu, YS Quilain, B Radermacher, T Radicioni, E Radics, B Ratoff, PN Reh, M Riccio, C Rondio, E Roth, S Rubbia, A Ruggeri, AC Ruggles, CA Rychter, A Sakashita, K Sánchez, F Santucci, G Schloesser, CM Scholberg, K Scott, M Seiya, Y Sekiguchi, T Sekiya, H Sgalaberna, D Shaikhiev, A Shaykina, A Shiozawa, M Shorrock, W Shvartsman, A Skwarczynski, K Smy, M Sobczyk, JT Sobel, H Soler, FJP Sonoda, Y Spina, R Su, H Suslov, IA Suvorov, S Suzuki, A Suzuki, SY Suzuki, Y Sztuc, AA Tada, M Takayasu, S Takeda, A Takeuchi, Y Tanaka, HK Tanihara, Y Tani, M Tereshchenko, VV Teshima, N Thamm, N Thompson, LF Toki, W Touramanis, C Towstego, T Tsui, KM Tsukamoto, T Tzanov, M Uchida, Y Vacheret, A Vagins, M Vallari, Z Vargas, D Vasseur, G Vilela, C Vinning, WGS Vladisavljevic, T Wachala, T Waldron, AV Walsh, JG Wang, Y Wan, L Wark, D Wascko, MO Weber, A Wendell, R Wilking, MJ Wilkinson, C Wilson, JR Wood, K Wret, C Xia, J Xu, Y-H Yamamoto, K Yanagisawa, C Yang, G Yano, T Yasutome, K Yershov, N Yevarouskaya, U Yokoyama, M Yoshimoto, Y Yu, M Zaki, R Zalewska, A Zalipska, J Zaremba, K Zarnecki, G Zhao, X Zhu, T Ziembicki, M Zimmerman, ED Zito, M Zsoldos, S
Copyright, Publisher and Additional Information:	© 2022 CERN. Published by IOP Publishing Ltd on behalf of Sissa Medialab. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence (https://creativecommons.org/licenses/by/4.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Keywords:	Gamma detectors (scintillators, CZT, HPGe, HgI etc; Neutrino detectors; Performance of High Energy Physics Detectors; Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)
Dates:	Published: 17 October 2022 Published (online): 17 October 2022 Accepted: 4 September 2022
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	31 Oct 2022 14:25
Last Modified:	31 Oct 2022 14:25
Status:	Published
Publisher:	IOP Publishing
Refereed:	Yes
Identification Number:	10.1088/1748-0221/17/10/p10028
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:192540

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Scintillator ageing of the T2K near detectors from 2010 to 2021

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