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1748-0221_10_03_P03002.pdf (2.08 MB)

The calibration system for the photomultiplier array of the SNO+ experiment

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posted on 2023-06-08, 21:08 authored by R Alves, S Andringa, S Bradbury, J Carvalho, D Chauhan, K Clark, I Coulter, F Descamps, Elisabeth FalkElisabeth Falk, L Gurriana, C Kraus, G Lefeuvre, A Maio, J Maneira, M Mottram, Simon PeetersSimon Peeters, J Rose, L Seabra, J Sinclair, P Skensved, J Waterfield, R White, J R Wilson
A light injection system using LEDs and optical fibres was designed for the calibration and monitoring of the photomultiplier array of the SNO+ experiment at SNOLAB. Large volume, non-segmented, low-background detectors for rare event physics, such as the multi-purpose SNO+ experiment, need a calibration system that allow an accurate and regular measurement of the performance parameters of their photomultiplier arrays, while minimising the risk of radioactivity ingress. The design implemented for SNO+ uses a set of optical fibres to inject light pulses from external LEDs into the detector. The design, fabrication and installation of this light injection system, as well as the first commissioning tests, are described in this paper. Monte Carlo simulations were compared with the commissioning test results, confirming that the system meets the performance requirements.

Funding

STFC Consolidated Grant Supplement; G0927; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/J001007/1

STFC Consolidated Grant; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/K001329/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of Instrumentation

ISSN

1748-0021

Publisher

IOP Science

Volume

10

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2015-07-13

First Open Access (FOA) Date

2016-04-01

First Compliant Deposit (FCD) Date

2015-07-13

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