Development of the low return loss 340-size ceramic window for the APS linac.

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The Advanced Photon Source (APS) linac high-power switching system makes use of 340-size waveguide components. These components include vacuum-grade furnace-brazed transitions, pressurized-grade aluminum 340-size switches, and more recently 340-size ceramic windows. The fabrication of these 340-size windows proceeded with brazing of ceramic membrane to thin-walled copper sleeves and real-time network analyzer testing performed by the ASD (Accelerator Systems Division) RF (Radio Frequency) Group. Initially it was thought that this real-time testing of prototype hardware would be necessary in the investigative stage to establish the required dimensions and physical geometry to satisfy the 40-dB return-loss criteria. However, producing four windows now ... continued below

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Berg, S.; Bromberek, D.; Goeppner, G.; Haase, A.; Hoyt, J.; Michalek, W. et al. October 10, 2002.

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The Advanced Photon Source (APS) linac high-power switching system makes use of 340-size waveguide components. These components include vacuum-grade furnace-brazed transitions, pressurized-grade aluminum 340-size switches, and more recently 340-size ceramic windows. The fabrication of these 340-size windows proceeded with brazing of ceramic membrane to thin-walled copper sleeves and real-time network analyzer testing performed by the ASD (Accelerator Systems Division) RF (Radio Frequency) Group. Initially it was thought that this real-time testing of prototype hardware would be necessary in the investigative stage to establish the required dimensions and physical geometry to satisfy the 40-dB return-loss criteria. However, producing four windows now installed involved real-time network analyzer testing during production of each window conducted in parallel with adjustments of tuners designed into each 340-size ceramic window.

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  • 2nd International Workshop on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI 2002), Argonne, IL (US), 09/05/2002--09/06/2002

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  • Report No.: ANL/ASD/CP-108838
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 803886
  • Archival Resource Key: ark:/67531/metadc738306

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  • October 10, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 24, 2016, 7:20 p.m.

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Berg, S.; Bromberek, D.; Goeppner, G.; Haase, A.; Hoyt, J.; Michalek, W. et al. Development of the low return loss 340-size ceramic window for the APS linac., article, October 10, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc738306/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.