Author :
Akimov, D. Yu ; Bolozdynya, A.J. ; Churakov, D.L. ; Afonasyev, V.N. ; Belogurov, S.G. ; Brastilov, A.D. ; Burenkov, A.A. ; Gusev, L.N. ; Kuzichev, V.F. ; Lebedenko, V.N. ; Osipova, T.A. ; Rogovsky, I.A. ; Safronov, G.A. ; Simonychev, S.A. ; Solovov, V.N.
Abstract :
A scintillating LXe/LKr electromagnetic calorimeter has been built at the ITEP and tested at the BATES (MIT) accelerator. The detector consists of a PMT matrix and 45 light collecting cells made of aluminized Mylar partially covered with p-terphenyl as a wavelength-shifter (WLS). Each pyramidal cell has (2.1×2.1)×40×(4.15×4.15) cm dimensions and is viewed by an FEU-85 glass-window photomultiplier. The detector has been exposed to the 106-348 MeV electron beam. The energy resolution is σE/E≃5%/√E at the 100-350 MeV range in LXe; the coordinate resolution is σX≃0.7 cm; the time resolution is στ≃0.6 ns for a single cell. Possible ways to improve energy resolution are discussed
Keywords :
calorimeters; electron detection; liquid scintillation detectors; position sensitive particle detectors; 0.6 ns; 0.7 cm; 106 to 348 MeV; FEU-85 glass-window photomultiplier; PMT; Xe-Kr; aluminized Mylar; coordinate resolution; electron beam; energy resolution; light collecting cells; p-terphenyl; scintillating LXe/LKr electromagnetic calorimeter; time resolution; wavelength-shifter; Electromagnetic radiation; Electron beams; Energy resolution; Nitrogen; Optical attenuators; Photomultipliers; Radiation detectors; Strips; Temperature measurement; Testing;
