A device to characterize optical fibres

Details A device to characterize optical fibres A device to characterize optical fibres

2001-09-03

arxiv.org/abs/hep-ex/0109002v1

Nucl.Instrum.Meth. A485 (2002) 311-321

Physics

High Energy Physics

High Energy Physics - Experiment

17 pages 20 figeres submitted to NIM journal

Scientific paper

10.1016/S0168-9002(01)02067-8

ATLAS is a general purpose experiment approved for the LHC collider at CERN. An important component of the detector is the central hadronic calorimeter; for its construction more than 600,000 Wave Length Shifting (WLS) fibres (corresponding to a total length of 1,120 Km) have been used. We have built and put into operation a dedicated instrument for the measurement of light yield and attenuation length over groups of 20 fibres at a time. The overall accuracy achieved in the measurement of light yield (attenuation length) is 1.5% (3%). We also report the results obtained using this method in the quality control of a large sample of fibres.

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