skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 1 ns time to digital converters for the KM3NeT data readout system

Abstract

The KM3NeT collaboration aims at the construction of a multi-km3 high-energy neutrino telescope in the Mediterranean Sea consisting of thousands of glass spheres (nodes), each of them containing 31 photomultiplier (PMT) of small photocathode area. The readout and data acquisition system of KM3NeT has to collect, treat and send to shore, in an economic way, the enormous amount of data produced by the photomultipliers. For this purpose, 31 high-resolution time-interval measuring channels are implemented on the Field-Programmable Gate Arrays (FPGA) based on Time to Digital Converter (TDC). TDC are very common devices in particles physics experiments. Architectures with low resources occupancy are desirable allowing the implementation of other instrumentation, communication and synchronization systems on the same device. The required resolution to measure both, time of flight and timestamp must be 1 ns. A 4-Oversampling technique with two high frequency clocks is used to achieve this resolution. The proposed TDC firmware is developed using very few resources in Xilinx Kintex-7.

Authors:
 [1]
  1. IFIC, Instituto de Física Corpuscular, CSIC- Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna (Spain)
Publication Date:
OSTI Identifier:
22390648
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1630; Journal Issue: 1; Conference: VLVvT 13: 6. International Workshop on Very Large Volumte Neutrino Telescopes, Stockholm (Sweden), 5-7 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CHERENKOV COUNTERS; DATA ACQUISITION SYSTEMS; IMPLEMENTATION; MEDITERRANEAN SEA; MULTIPARTICLE SPECTROMETERS; NEUTRINO DETECTION; PARTICLE IDENTIFICATION; PHOTOCATHODES; PHOTOMULTIPLIERS; READOUT SYSTEMS; RESOLUTION; SCINTILLATION COUNTERS; SPHERES; SYNCHRONIZATION; TELESCOPE COUNTERS; TIME-OF-FLIGHT METHOD

Citation Formats

Calvo, David, and Collaboration: KM3NeT Collaboration. 1 ns time to digital converters for the KM3NeT data readout system. United States: N. p., 2014. Web. doi:10.1063/1.4902781.
Calvo, David, & Collaboration: KM3NeT Collaboration. 1 ns time to digital converters for the KM3NeT data readout system. United States. https://doi.org/10.1063/1.4902781
Calvo, David, and Collaboration: KM3NeT Collaboration. 2014. "1 ns time to digital converters for the KM3NeT data readout system". United States. https://doi.org/10.1063/1.4902781.
@article{osti_22390648,
title = {1 ns time to digital converters for the KM3NeT data readout system},
author = {Calvo, David and Collaboration: KM3NeT Collaboration},
abstractNote = {The KM3NeT collaboration aims at the construction of a multi-km3 high-energy neutrino telescope in the Mediterranean Sea consisting of thousands of glass spheres (nodes), each of them containing 31 photomultiplier (PMT) of small photocathode area. The readout and data acquisition system of KM3NeT has to collect, treat and send to shore, in an economic way, the enormous amount of data produced by the photomultipliers. For this purpose, 31 high-resolution time-interval measuring channels are implemented on the Field-Programmable Gate Arrays (FPGA) based on Time to Digital Converter (TDC). TDC are very common devices in particles physics experiments. Architectures with low resources occupancy are desirable allowing the implementation of other instrumentation, communication and synchronization systems on the same device. The required resolution to measure both, time of flight and timestamp must be 1 ns. A 4-Oversampling technique with two high frequency clocks is used to achieve this resolution. The proposed TDC firmware is developed using very few resources in Xilinx Kintex-7.},
doi = {10.1063/1.4902781},
url = {https://www.osti.gov/biblio/22390648}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1630,
place = {United States},
year = {Tue Nov 18 00:00:00 EST 2014},
month = {Tue Nov 18 00:00:00 EST 2014}
}