Author/Authors :
Anikeev، نويسنده , , V.B. and Belikov، نويسنده , , S.V. and Gurzhiev، نويسنده , , S.N. and Denisov، نويسنده , , A.G. and Denisov، نويسنده , , S.P. and Fedjakin، نويسنده , , N.N. and Kochetkov، نويسنده , , V.I. and Korablev، نويسنده , , V.M. and Koreshev، نويسنده , , V.I. and Lipaev، نويسنده , , V.V. and Los، نويسنده , , S.V. and Mikhailin، نويسنده , , V.N. and Rybin، نويسنده , , A.M. and Sytin، نويسنده , , A.N. and Bogd، نويسنده ,
Abstract :
The design of the fine grained 300 t liquid argon calorimeter BARS is described. The BARS electronics include about 30 K channels of low noise amplifiers and ADCs. The DAQ system makes it possible to select channels with signals above the chosen threshold. 48 scintillation hodoscopes placed inside the liquid argon are used to form the first level trigger. The total number of scintillation counters in liquid argon is 384. Sums of ionization signals are used to produce the second level trigger. Results of the first use of liquid argon calorimetry for the measurements of tagged neutrino interactions, cosmic-ray muon spectra and composition of extensive atmospheric showers are discussed.
