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Inicio  /  Instruments  /  Vol: 6 Par: 1 (2022)  /  Artículo
ARTÍCULO
TITULO

Multichannel Time Synchronization Based on PTP through a High Voltage Isolation Buffer Network Interface for Thick-GEM Detectors

Luis Guillermo García Ordóñez    
Maria Liz Crespo    
Sergio Carrato    
Andres Cicuttin    
Werner Oswaldo Florian Samayoa    
Daniele D?Ago and Stefano Levorato    

Resumen

Data logging and complex algorithm implementations acting on multichannel systems with independent devices require the use of time synchronization. In the case of Gas Electron Multipliers (GEM) and Thick-GEM (THGEM) detectors, the biasing potential can be generated at the detector level via DC to DC converters operating at floating voltage. In this case, high voltage isolation buffers may be used to allow communication between the different channels. However, their use add non-negligible delays in the transmission channel, complicating the synchronization. Implementation of a simplified precise time protocol is presented for handling the synchronization on the Field Programmable Gate Array (FPGA) side of a Xilinx SoC Zynq ZC7Z030. The synchronization is done through a high voltage isolated bidirectional network interface built on a custom board attached to a commercial CIAA_ACC carrier. The results of the synchronization are shown through oscilloscope captures measuring the time drift over long periods of time, achieving synchronization in the order of nanoseconds.

Palabras claves

PTP -  FPGA -  SoC -  MPGD -  high voltage -  THGEM