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https://doi.org/10.18429/JACoW-IPAC2017-WEPVA150
Title New Controller for High Voltage Converter Modulator at Spallation Neutron Source
Authors
  • D.L. Brown, X. Geng, S.W. Lee, M. Wezensky, A.P. Zhukov
    ORNL, Oak Ridge, Tennessee, USA
Abstract We have developed a new control system for the high voltage converter modulator at the Spallation Neutron Source to replace the original control system designed by Los Alamos National Laboratory which is approaching obsolescence. The new controller, based on national instruments PXI/FlexRIO FPGA hardware, offers enhancements over the original system such as modular construction, flexibility and non-proprietary software. The new controller also provides new capabilities like modulator pulse flattening, waveform capture & first fault detection. This paper will discuss the design of the system, including the human machine interface, based on lessons learned at the Spallation Neutron Source and other projects. It will also discuss performance and other issues related to operation in an accelerator facility which requires high availability. To date half of the high voltage converter modulators have been upgraded with the new controller with the remainder scheduled for completion by mid-2017.
Funding This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy.
Paper download WEPVA150.PDF [1.463 MB / 3 pages]
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Conference IPAC2017, Copenhagen, Denmark
Series International Particle Accelerator Conference (8th)
Proceedings Link to full IPAC2017 Proccedings
Session Posters Wednesday 3
Date 17-May-17   16:00–18:00
Main Classification 07 Accelerator Technology
Sub Classification T16 Pulsed Power Technology
Keywords controls, LabView, interface, timing, high-voltage
Publisher JACoW, Geneva, Switzerland
Editors Volker RW Schaa (GSI, Darmstadt, Germany); Gianluigi Arduini (CERN, Geneva, Switzerland); Juliana Pranke (ESS, Lund, Sweden); Mike Seidel (PSI, Villigen, Switzerland); Mats Lindroos (ESS, Lund, Sweden)
ISBN 978-3-95450-182-3
Published May 2017
Copyright
Copyright © 2017 by JACoW, Geneva, Switzerland     CC-BY Creative Commons License
cc Creative Commons Attribution 3.0