M. Taiuti et al., PERFORMANCES OF THE OPTICAL READOUT SYSTEM FOR THE LARGE-ANGLE ELECTROMAGNETIC SHOWER CALORIMETER FOR CLAS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 357(2-3), 1995, pp. 344-349
We present the study of a lucite light guide system developed for the
modules of the electromagnetic calorimeter that will be installed in C
LAS at CEBAF to detect showering particles emitted at angles larger th
an 45 degrees. We show that it is possible to produce lucite guides wi
th length up to 120 cm and to adapt them to the module geometry with l
ow costs, time and efforts. The performances are comparable or even be
tter than that of equivalent systems realized with optic fibres. The g
uides showed high homogeneity and light transmission efficiency.