Author/Authors :
Taiuti، نويسنده , , M. and Rossi، نويسنده , , P. and Morandotti، نويسنده , , R. and Anghinolfi، نويسنده , , M. and Avakian، نويسنده , , H. and Battaglieri، نويسنده , , M. and Bianchi، نويسنده , , N. and Corvisiero، نويسنده , , P. and DeSanctis، نويسنده , , E. and Giourjian، نويسنده , , V. and LeviSandri، نويسنده , , P. and Longhi، نويسنده , , A. and Mokeev، نويسنده , , V.I. and Muccifora، نويسنده , , V. and Olcese، نويسنده , , M. and Polli، نويسنده , , E. and Reolon، نويسنده , , A.R. and Ricco، نويسنده , , G. and Ripani، نويسنده , , M. and Sanzone، نويسنده , , M. and Zucchiatti، نويسنده , , A.، نويسنده ,
Abstract :
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 scintillator bar properties on the calorimeter energy read-out and timing is discussed. We found that the new scintillator NE110A manufactured by NE Technology Ltd. showed the best agreement with our demands. The effect of wrapping materials on the scintillator bar properties has been studied considering also the temperature variations expected in Hall B at CEBAF.
