Author/Authors :
Bosi، نويسنده , , F. and Burdin، نويسنده , , S. and Cavasinni، نويسنده , , V. and Costanzo، نويسنده , , D. and Del Prete، نويسنده , , T. and Flaminio، نويسنده , , V. and Mazzoni، نويسنده , , E. and Roda، نويسنده , , C. and Usai، نويسنده , , G. and Vasiljev، نويسنده , , A.، نويسنده ,
Abstract :
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 fibres (corresponding to a total length of 1120 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.
