NaNet³: The on-shore readout and slow-control board for the KM3NeT-Italia underwater neutrino telescope

Abstract

Abstract. The KM3NeT-Italia underwater neutrino detection unit, the tower, consists of 14 floors. Each floor supports 6 Optical Modules containing front-end electronics needed to digitize the PMT signal, format and transmit the data and 2 hydrophones that reconstruct in real-time the position of Optical Modules, for a maximum tower throughput of more than 600 MB/s. All floor data are collected by the Floor Control Module (FCM) board and transmitted by optical bidirectional virtual point-to-point connections to the on-shore laboratory, each FCM needing an on-shore counterpart as communication endpoint. In this contribution we present NaNet 3 , an on-shore readout board based on Altera Stratix V GX FPGA able to manage multiple FCM data channels with a capability of 800 Mbps each.

The integrated low-level trigger and readout system of the CERN NA62 experiment

“…The measured total time latency of these heterogeneous processing pipelines and their stability have been assessed in several experimental contexts [30] [31]. Data received from TEL62 boards are collected in a Circular List Of Persistent (CLOP) buffers in GPU memory.…”