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The LED and fiber based calibration system for the photomultiplier array of SNO+

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Resumo:A new external LED/fiber light injection calibration system was designed for the calibration and monitoring of the photomultiplier array of the SNO+ experiment at SNOLAB. The goal of the calibration system is to allow an accurate and regular measurement of the photomultiplier array's performance, while minimizing the risk of radioactivity ingress. The choice in SNO+ was to use a set of optical fiber cables to convey into the detector the light pulses produced by external LEDs. The quality control was carried out using a modified test bench that was used in QC of optical fibers for TileCal/ATLAS. The optical fibers were characterized for transmission, timing and angular dispersions. This article describes the setups used for the characterization and quality control of the system based on LEDs and optical fibers and their results.
Autores principais:SNO+ collaboration (22 authors)
Outros Autores:Seabra, L.; Alves, R.; Andringa, S.; Carvalho, J.; Gurriana, L.; Maio, A.; Maneira, J.
Ano:2015
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Laboratório de Instrumentação e Física Experimental de Partículas
Idioma:inglês
Origem:Laboratório de Instrumentação e Física Experimental de Partículas

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