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https://doi.org/10.18429/JACoW-NAPAC2016-MOPOB17
Title Resonant Frequency Control for the PIP-II Injector Test RFQ: Control Framework and Initial Results
Authors
  • A.L. Edelen, S. Biedron, S.V. Milton
    CSU, Fort Collins, Colorado, USA
  • D.L. Bowringpresenter, B.E. Chase, J.P. Edelen, D.J. Nicklaus, J. Steimel
    Fermilab, Batavia, Illinois, USA
Abstract For the PIP-II Injector Test (PI-Test) at Fermilab, a four-vane radio frequency quadrupole (RFQ) is designed to accelerate a 30-keV, 1-mA to 10-mA H' beam to 2.1 MeV under both pulsed and continuous wave (CW) RF operation. The available headroom of the RF amplifiers limit the maximum allowable detuning to 3 kHz, and the detuning is controlled entirely via thermal regulation. Fine control over the detuning, minimal manual intervention, and fast trip recovery is desired. In addition, having active control over both the walls and vanes provides a wider tuning range. For this, we intend to use model predictive control (MPC). To facilitate these objectives, we developed a dedicated control framework that handles higher-level system decisions as well as executes control calculations. It is written in Python in a modular fashion for easy adjustments, readability, and portability. Here we describe the framework and present the first control results for the PI-Test RFQ under pulsed and CW operation.
Funding Work supported by Fermilab Research Alliance, LLC under Contract No. DE-AC02-07CH11359.
Paper download MOPOB17.PDF [0.512 MB / 4 pages]
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Conference NAPAC2016, Chicago, IL, USA
Series North American Particle Accelerator Conference (3rd)
Proceedings Link to full NAPAC2016 Proccedings
Session Poster Session (MC7)
Date 10-Oct-16   16:00–17:30
Main Classification 7: Accelerator Technology Main Systems
Sub Classification T06 - Room Temperature RF
Keywords ion, controls, rfq, framework, operation
Publisher JACoW, Geneva, Switzerland
Editors Volker RW Schaa (GSI, Darmstadt, Germany); Maria Power (ANL, Argonne, IL, USA); Vladimir Shiltsev (FNAL, Batavia, IL, USA); Marion White (ANL, Argonne, IL, USA)
ISBN 978-3-95450-180-9
Published January 2017
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