A High-Resolution TDC-Based Board for a Fully Digital Trigger and Data Acquisition System in the NA62 Experiment at CERN

A time-to-digital converter-based system, to be used for most subdetectors in the high-flux rare-decay experiment NA62 at CERN SPS, was built as part of the NA62 fully digital trigger and data acquisition system in which the TDC Board (TDCB) and a general-purpose motherboard (TEL62) will play a fund...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2015-06, Vol.62 (3), p.1050-1055
Main Authors: Pedreschi, Elena, Angelucci, Bruno, Avanzini, Carlo, Galeotti, Stefano, Lamanna, Gianluca, Magazzu, Guido, Pinzino, Jacopo, Piandani, Roberto, Sozzi, Marco, Spinella, Franco, Venditti, Stefano
Format: Article
Language:English
Subjects:
Clocks
Data acquisition
Detectors
Field programmable gate arrays
field-programmable gate array
Random access memory
Signal resolution
trigger circuits
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Summary:A time-to-digital converter-based system, to be used for most subdetectors in the high-flux rare-decay experiment NA62 at CERN SPS, was built as part of the NA62 fully digital trigger and data acquisition system in which the TDC Board (TDCB) and a general-purpose motherboard (TEL62) will play a fundamental role. While TDCBs, housing four high-performance time-to-digital converters (HPTDCs), measure hit times from subdetectors, the motherboard processes and stores them in a buffer, produces trigger primitives from different detectors, and extracts only data related to the lowest trigger level decision, once this is taken on the basis of the trigger primitives themselves. The features of the TDCB developed by the Pisa NA62 group are extensively discussed and performance data are presented in order to show its compliance with the experiment requirements.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2015.2423702