| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8181191 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2012 | 13 Pages |
Abstract
A performance test has been made for an electro-magnetic calorimeter prototype comprised four identical BSO crystals arranged in a 2Ã2 matrix by utilizing a positron beam in the energy range from 100 to 800 MeV. The size of each crystal is 40Ã40Ã210 mm3. This is the world's largest BSO single crystal ever used as a photon detector. The obtained energy resolution is (ÏE/E)2=((1.71%±0.03%)/E)2+(1.12%±0.08%)2 at room temperature, where E is the incident positron energy given in GeV. A BGO calorimeter having the same geometry has been employed in the performance test for comparison. The basic scintillation characteristics of BSO crystals measured without the beam are also presented.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
T. Ishikawa, H. Fujimura, R. Hashimoto, S. Kaida, J. Kasagi, R. Kitazawa, S. Kuwasaki, A. Nakamura, K. Nawa, Y. Okada, M. Sato, H. Shimizu, K. Suzuki, Y. Tajima, S. Takahashi, Y. Tsuchikawa, H. Yamazaki, H.Y. Yoshida,