MEASUREMENT OF THE RESPONSE OF LONG PLASTIC SCINTILLATOR BARS FOR THELARGE-ANGLE ELECTROMAGNETIC SHOWER CALORIMETER FOR CLAS

Citation
M. Taiuti et al., MEASUREMENT OF THE RESPONSE OF LONG PLASTIC SCINTILLATOR BARS FOR THELARGE-ANGLE ELECTROMAGNETIC SHOWER CALORIMETER FOR CLAS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 370(2-3), 1996, pp. 429-434
Citations number
11
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
370
Issue
2-3
Year of publication
1996
Pages
429 - 434
Database
ISI
SICI code
0168-9002(1996)370:2-3<429:MOTROL>2.0.ZU;2-E
Abstract
The behaviour of plastic scintillator bars with length up to 450 cm, d esigned for the CLAS large angle electromagnetic shower calorimeter, i s 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 scinti llator 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 eff ect of wrapping materials on the scintillator bar properties has been studied considering also the temperature variations expected in Hall B at CEBAF.