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Title: Nova DAQ, System Architecture, Data Combiner and Timing System

NOvA (E929) is a long baseline experiment that will search for neutrino oscillations. There will be one detector near the beam source at Fermilab, and one detector in northern Minnesota. The DAQ system for the far detector collects over-threshold hits from over 450,000 channels of scintillator readouts, sorts the time-stamped data packets and archives selected time periods of data for transmission and processing. While a simple point-to-point protocol is used for the first level of data collection, Ethernet was chosen as the fabric for the rest of the DAQ. The packet time-stamp and overall system synchronization is based on two common-view GPS trained clock oscillators, one at each site. The present design cost-effectively satisfies the experiment's moderate speed and data volume requirements.
Authors:
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Publication Date:
OSTI Identifier:
910189
Report Number(s):
FERMILAB-PUB-07-118-CD
TRN: US0704111
DOE Contract Number:
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Conference: Presented at 15th IEEE Real Time Conference 2007 (RT 07), Batavia, Illinois, 29 Apr - 4 May 2007.
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ARCHITECTURE; DESIGN; FERMILAB; GLOBAL POSITIONING SYSTEM; NEUTRINO OSCILLATION; OSCILLATORS; PHOSPHORS; PROCESSING; SYNCHRONIZATION; VELOCITY