ISSN - 01689002, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2016, vol. 824, p. 362-364
New electronics of the spectrometric channel for the SND detector electromagnetic calorimeter
© 2015 Published by Elsevier B.V. The Spherical Neutral Detector (SND) is intended for study of electron-positron annihilation at the VEPP-2000 collider (BINP, Novosibirsk) in the center-of-mass energy region below 2 GeV. The main part of the detector is a three-layer electromagnetic calorimeter based on NaI(Tl) crystals. The physics program of the SND experiment includes a high statistics study of neutron-antineutron production near threshold, for which time measurements in the calorimeter are required. In this paper we describe new shaping and digitizing calorimeter electronics, which allow to reach a time resolution of about 1 ns for 100 MeV signal and an amplitude resolution of about 250 keV.