Performance of the BGO endcap calorimeter with phototriode readout for the CMD-2 detector

Author

Grigoriev, D.N. ; Akhmetshin, R.R. ; Beschastnov, P.M. ; Fedorenko, V.E. ; Pyata, E.E. ; Smakhtin, V.P. ; Yudin, Yu V. ; Shlegel, V.N. ; Vasiliev, Ya V.

Author_Institution

Budker Inst. of Nucl. Phys., Novosibirsk, Russia

Volume

42

Issue

4

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

505

Lastpage

509

Abstract

The endcap calorimeter of the CMD-2 detector for the VEPP-2M collider is described. The calorimeter contains 680 BGO crystals read out by vacuum phototriodes. Charge sensitive preamplifiers are placed directly on the phototriodes for the best noise performance. The calorimeter was installed during the last year. Calibration by cosmic rays showed the energy equivalent of the electronic noise to be about 0.9 MeV during operation in a 1 T magnetic field which corresponds to the design value

Keywords

amplifiers; bismuth compounds; calibration; calorimeters; calorimetry; detector circuits; nuclear electronics; preamplifiers; solid scintillation detectors; triodes; 0.9 MeV; 1 T; BGO endcap calorimeter performance; Bi₄Ge₃O₁₂; CMD-2 detector; VEPP-2M collider; calibration; charge sensitive preamplifiers; cosmic rays; electronic noise; magnetic field; noise performance; phototriode readout; vacuum phototriodes; Energy resolution; Magnetic fields; Mesons; Notice of Violation; Nuclear physics; Photomultipliers; Photonic crystals; Preamplifiers; Region 8; Solid scintillation detectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.467921

Filename

467921