학술논문

Scintillating LXe/LKr electromagnetic calorimeter
Document Type
Conference
Source
Proceedings of 1994 IEEE Nuclear Science Symposium - NSS'94 Nuclear science and medical imaging Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record. 1:244-248 vol.1 1994
Subject
Nuclear Engineering
Power, Energy and Industry Applications
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Signal Processing and Analysis
Bioengineering
Nitrogen
Testing
Photomultipliers
Energy resolution
Electromagnetic radiation
Filling
Strips
Radiation detectors
Temperature measurement
Spectroscopy
Language
Abstract
A scintillating LXe/LKr electromagnetic calorimeter has been built at the ITEP and tested at the BATES (MIT) accelerator. The detector consists of PMT matrix and 45 light collecting cells made of aluminized 50 microns Mylar partially covered with p-terphenyle as a wavelength-shifter (WLS). Each pyramidal cell has (2.1/spl times/2.1)/spl times/40/spl times/(4.15/spl times/4.15) cm dimensions and is viewed by FEU-85 glass-window photomultiplier. The detector has been exposed at 106-348 MeV electron beam. The energy resolution /spl sigma//sub E//E/spl cong/5%//spl radic/E at 100-350 MeV range in LXe, the coordinate resolution /spl sigma//sub x//spl cong/0.7, the time resolution /spl sigma//sub t//spl cong/0.6 ns for single cell have been obtained. Possible ways to improve energy resolution are discussed.ETX