PERFORMANCE OF AN ELECTROMAGNETIC LEAD SCINTILLATING-FIBER CALORIMETER FOR THE H1 DETECTOR/

Citation
T. Nicholls et al., PERFORMANCE OF AN ELECTROMAGNETIC LEAD SCINTILLATING-FIBER CALORIMETER FOR THE H1 DETECTOR/, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 374(2), 1996, pp. 149-156
Citations number
18
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
374
Issue
2
Year of publication
1996
Pages
149 - 156
Database
ISI
SICI code
0168-9002(1996)374:2<149:POAELS>2.0.ZU;2-7
Abstract
The properties of final modules of a high resolution lead/scintillatin g-fibre calorimeter to upgrade the backward region of the H1 detector were studied with electrons in the energy range from 2-60 GeV. The ele ctromagnetic calorimeter consists of scintillating fibres with a diame ter of 0.5 mm embedded in a lead matrix. This small fibre radius, in c ombination with a lead-to-fibre ratio of 2.27:1, ensures excellent ene rgy resolution which has been measured to be sigma/E=7.1%/root E/GeV+1 .0%. The spatial resolution as a function of energy for impact points at the center of a cell is given by 4.4 mm/root E/GeV+1.0 mm. The time resolution was found to be better than 0.4 ns.