Title :
Response of a PbWO4-scintillator array to electrons in the energy regime below 1 GeV
Author :
Novotny, R. ; Doring, W. ; Menge, K. ; Metag, V. ; Pienne, C.
Author_Institution :
II. Phys. Inst., Giessen Univ., Germany
Abstract :
PbWO4 has been selected as the most appropriate scintillator material for future calorimeter projects at LHC to detect high energy photons in the GeV range. In spite of the low yield of scintillation light, the applicability of the scintillator to detect photons and particles at energies well below 1 GeV has been studied using monoenergetic electrons between 180 and 855 MeV. The individual crystals (20×20×150 mm3) are characterized by the optical quality and the response to low energy γ-sources using hybrid photo diode tubes. The energy resolution of the EM-shower deposited by electrons in a 3×3 crystal matrix amounts to σ/E=2.39%/√E+0.20% (E given in GeV). The obtained time resolution of σ⩽130 ps allows photon/particle discrimination via time-of-flight measurement
Keywords :
arrays; calorimeters; electron detection; gamma-ray detection; solid scintillation detectors; 150 mm; 180 to 855 MeV; 20 mm; EM-shower; LHC; PbWO4; PbWO4-scintillator array; calorimeter projects; electron response; energy resolution; high energy photons; monoenergetic electrons; optical quality; photon/particle discrimination; scintillator material; time resolution; time-of-flight measurement; Diodes; Electron optics; Energy resolution; Large Hadron Collider; Optical pulse shaping; Optical refraction; Photonic crystals; Radiation detectors; Solid scintillation detectors; Wavelength measurement;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.590967
