The Belle II pixel detector data acquisition and reduction system

The upcoming Belle II experiment is designed to work at a luminosity of 8 × 10 35 cm -2 s -1 , 40 times higher than its predecessor. The pixel detector of Belle II with its ~8 million channels will deliver ten times more data than all other sub-detectors together. A data rate of 22 Gbytes/s is expec...

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Bibliographic Details
Main Authors: Spruck, B., Gessler, T., Kuhn, Wolfgang, Lange, J. S., Haichuan Lin, Zhen'An Liu, Munchow, D., Hao Xu, Jingzhou Zhao
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Data acquisition
Detectors
Field programmable gate arrays
Hardware
High energy physics instrumentation computing
Mesons
Optical fiber communication
Online Access:Request full text
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Summary:The upcoming Belle II experiment is designed to work at a luminosity of 8 × 10 35 cm -2 s -1 , 40 times higher than its predecessor. The pixel detector of Belle II with its ~8 million channels will deliver ten times more data than all other sub-detectors together. A data rate of 22 Gbytes/s is expected for a trigger rate of 30 kHz and an estimated pixel detector occupancy of 3 %, which is by far exceeding the specifications of the Belle II event builder system. Therefore a realtime data reduction of a factor >;30 is needed.
DOI:10.1109/RTC.2012.6418187