Spherical Neutral Detector for VEPP-2M collider

Abstract

The Spherical Neutral Detector (SND) operates at VEPP-2M collider in Novosibirsk studying e+e- annihilation in the energy range up to 1.4 GeV. Detector consists of a fine granulated spherical scintillation calorimeter with 1632 NaI(Tl) crystals, two cylindrical drift chambers with 10 layers of sense wires, and a muon system made of streamer tubes and plastic scintillation counters. The detector design, performance, data acquisition and processing are described.

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