from 27 February 2017 to 3 March 2017
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone
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Contribution Contributed Oral

Electronics, Trigger and Data Acquisition

Precision Timing concepts in large scale distributed astroparticle experiments



Primary authors


Time synchronization to sub-nsec precision of detector systems distributed over large areas is requested in modern astroparticle experiments, like upcoming Gamma-Ray and Cosmic-Ray detector arrays, to ensure optimal pattern recognition and background rejection.

White-Rabbit (WR), a new ethernet-based technology for time and frequency transfer, is well suited for this purpose. It allows clock-synchronziation and trigger-time stamping to sub-nanosecond precision over multi-km scale distances. This technology also supports new complex and flexible topological trigger strategies, based on ethernet-routed timestamps.

We present design and results from the White-Rabbit installation in the TAIGA-HiSCORE array, gained over several years; and discuss upcoming applications like e.g. the Cherenkov-Telescope-Array (CTA) and high energy neutrino telescopes.

Excellent field performance, design flexibility at timing and triggering level, open soft- and hardware approach with strong community support and documentation, commercial availability, easy integration into modern system monitoring architectures, and the striking cost-efficiency make White-Rabbit a new de-facto experimental standard, and advantageous over custom-made solutions.