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Title Development of FPBA-Based TDC With Wide Dynamic Range for Monitoring the Trigger Timing Distribution System at the KEKB Injector Linac
  • T. Suwada, K. Furukawa, F. Miyahara
    KEK, Ibaraki, Japan
Abstract A new field-programmable gate array (FPGA)-based time-to-digital converter (TDC) with a wide dynamic range greater than 20 ms has been developed to monitor the timing of various pulsed devices in the trigger timing distribution system of the KEKB injector linac. The pulsed devices are driven by feeding regular as well as any irregular (or event-based) timing pulses. For monitoring the timing as precisely as possible, a 16-ch FPGA-based TDC has been developed on a Xilinx Spartan-6 FPGA equipped on VME board with a time resolution of 1 ns. The resolution was achieved by applying a multisampling technique, and the accuracies were 2.6 ns (rms) and less than 1 ns (rms) within the dynamic ranges of 20 ms and 7.5 ms, respectively. The various nonlinear effects were improved by implementing a high-precision external clock with a built-in temperature-compensated crystal oscillator.
Paper download MOPB017.PDF [0.484 MB / 5 pages]
Poster download MOPB017_POSTER.PDF [3.237 MB]
Conference IBIC2015, Melbourne, Australia
Series International Beam Instrumentation Conference (4th)
Proceedings Link to full IBIC2015 Proccedings
Session Poster Session 1
Date 14-Sep-15   16:00–18:00
Main Classification Time Resolved Diagnostics and Synchronization
Keywords timing, FPGA, linac, injection, monitoring
Publisher JACoW, Geneva, Switzerland
Editors Mark Boland (SLSA, Clayton, Australia); David Button (ANSTO, Menai, Australia); Kathleen Riches (SLSA, Clayton, Australia); Volker RW Schaa (GSI, Darmstadt, Germany)
ISBN 978-3-95450-176-2
Published January 2016
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