Аннотация

The SND is a non-magnetic detector deployed at the VEPP-2000 e^+e^- collider (BINP, Novosibirsk) for hadronic cross-section measurements in the center of mass energy region below 2 GeV. The important part of the detector is a three-layer hodoscopic electromagnetic calorimeter (EMC) based on NaI(Tl) counters. Until the recent EMC spectrometric channel upgrade, only the energy deposition measurement in counters was possible. A new EMC signal shaping and digitizing electronics based on FADC allows us to obtain also the event time structure. The new electronics and supporting software, including digital signal processing algorithms, are used for data taking in the ongoing experiment. We discuss the amplitude and time extraction algorithms, the new system performance on experimental events and physical analysis applications.

Язык оригиналаанглийский
Номер статьиC09042
Число страниц10
ЖурналJournal of Instrumentation
Том15
Номер выпуска9
DOI
СостояниеОпубликовано - сен 2020

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