from 24 February 2014 to 1 March 2014
Asia/Novosibirsk timezone
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Contribution Poster

Trigger, electronics and DAQ

SND data acquisition system upgrade


  • Aleksandr KOROL

Primary authors

Abstract content

The data acquisition (DAQ) system of the SND detector successfully operated during four data-taking seasons (2010-2013) at the e⁺e⁻ collider VEPP-2000. Currently the collider is shut down for planned reconstruction, which is expected to increase the VEPP-2000 luminosity and data flow from the SND detector electronics by up to 10 times . Since current DAQ system implementation (electronics and computer part) does not have enough reserve for selection of events in the new environment without compromising quality, there arose the need for the system upgrade. Here we report on the major SND data acquisition system upgrade which includes developing new electronics for digitization and data transfer, complete redesign of the data network, increasing of the DAQ computer farm processing capacity and making the event building process concurrent. These measures will allow us to collect data flow from the most congested detector subsystems in parallel in contrast to the current situation.