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https://doi.org/10.18429/JACoW-SRF2023-WEPWB131
Title Demonstration of Magnetron as an Alternative RF Source for SRF Accelerators
Authors
  • H. Wang, K. Jordan, R.A. Rimmer
    JLab, Newport News, Virginia, USA
  • J.P. Anderson, C.P. Moeller, K.A. Thackston
    GA, San Diego, California, USA
Abstract Magnetron has been considered as alternate high-efficiency, low-cost RF sources for linacs and storage rings [1] for national labs and industrial applications. After the demonstration of magnetrons power to drive and combine for a radio frequency cavity at 2450 MHz in CW mode, we have used trim coils adding to a water-cooled magnetron and amplitude modulation feedback to further suppress the side-band noise to -46.7 dBc level. We also demonstrated the phase-locking to an industrial grade cooking magnetron transmitter at 915 MHz with a 75 kW CW power delivered to a water load by using a -26.6 dBc injection signal [2]. The sideband noise from the 3-Phase SCRs DC power supply can be reduced to -16.2 dBc level. Further noise reduction and their power combining scheme using magic-tee and cavity type combiners for higher power application (2x75kW) are to be presented. We intent to use one power station to drive the normal conducting and superconducting RF cavities for the inductrial linac. We also going to demonstarte a vertical SRF cavity test with a high input coupling Q using a 2.45GHz magnetron and comparing with a baseline test result using a solid state amplifier.
Footnotes & References [1]. doi:10.18429/JACoW-IPAC2015-WEPWI028.
[2]. doi:10.18429/JACoW-NAPAC2022-WEZD3.
Funding Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177, and DOE OS/ARDAP Accelerator Stewardship award 2019-2023.
Paper download WEPWB131.PDF [1.316 MB / 5 pages]
Poster download WEPWB131_POSTER.PDF [2.445 MB]
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Conference SRF2023
Series International Conference on RF Superconductivity (21st)
Location Grand Rapids, MI, USA
Date 25-30 June 2023
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Kenji Saito (FRIB, MSU, East Lansing, MI, USA); Ting Xu (FRIB, MSU, East Lansing, MI, USA); Naruhiko Sakamoto (RIKEN, Wako, Japan); Volker R.W. Schaa (GSI, Darmstadt, Germany); Paul W. Thomas (FRIB, MSU, East Lansing, MI, USA)
Online ISBN 978-3-95450-234-9
Online ISSN 2673-5504
Received 16 June 2023
Revised 28 June 2023
Accepted 30 June 2023
Issue Date 19 August 2023
DOI doi:10.18429/JACoW-SRF2023-WEPWB131
Pages 902-906
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.