P. LEVISANDRI

We present the study of a lucite light guide system developed for the modules of the electromagnetic calorimeter that will be installed in CLAS at CEBAF to detect showering particles emitted at angles larger than 45°. We show that it is possible to produce lucite guides with length up to 120 cm and to adapt them to the module geometry with low...

The effects of internal targets on the beam accumulated in electron storage rings are studied with a linear stochastic model which describes the beam emittance and the beam phase-space growth and provides simple formulae for the longitudinal and transverse beam emittance. The description of facilities with and without beam damping is carried...

The behaviour of plastic scintillator bars with length up to 450 cm, designed for the CLAS large angle electromagnetic shower calorimeter, is considered in relation to the overall calorimeter response function. In particular methods adopted to measure the light emission yield and transmission efficiency are described and the influence of the...