Title :
The PHENIX shish-kebab EM calorimeter
Author :
David, G. ; Kistenev, E. ; Patwa, A. ; Stoll, S. ; White, S. ; Woody, C. ; Belikov, S. ; Denisov, A. ; Gilitzky, Yu ; Kochetkov, V. ; Melnikov, Y. ; Mikhailov, Y. ; Onuchin, V. ; Semenov, V.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The PHENIX Electromagnetic Calorimeter is a large 15552 channel lead/scintillator sampling calorimeter based on the shish-kebab optical readout technique. In this report we summarise studies leading to a design optimised for measurement of photons and electrons in the 1 GeV momentum range within the high multiplicity environment expected for events at RHIC. Timing resolutions of ~100 ps and sampling dominated energy resolution of 8% at 1 GeV are featured. We also present a novel scheme for monitoring gain and timing of the system. Test results with a 144 channel preproduction module exposed to electron and hadron beams at the AGS are described. The calorimeter is now under construction in Russia and the US
Keywords :
calorimeters; detector circuits; nuclear electronics; solid scintillation detectors; 144 channel preproduction module; 15552 channel lead/scintillator sampling calorimeter; PHENIX shish-kebab EM calorimeter; electron beams; energy resolution; hadron beams; high multiplicity environment; monitoring gain; shish-kebab optical readout technique; timing resolutions; Design optimization; Electromagnetic measurements; Electron beams; Electron optics; Energy resolution; Monitoring; Sampling methods; Structural beams; Testing; Timing;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.504326
