Accelerator Structure Bead Pull Measurement at SLAC

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Microwave measurement and tuning of accelerator structures are important issues for the current and next generation of high energy physics machines. Application of these measurements both before and after high power processing can reveal information about the structure but may be misinterpreted if measurement conditions are not carefully controlled. For this reason extensive studies to characterize the microwave measurements have been made at SLAC. For the bead pull a reproducible measurement of less than 1 degree of phase accuracy in total phase drift is needed in order to resolve issues such as phase changes due to structure damage during high ... continued below

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3 pages

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Lewandowski, J.R.; Bowden, G.; Miller, R.H.; Wang, J.W. & /SLAC May 13, 2005.

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Description

Microwave measurement and tuning of accelerator structures are important issues for the current and next generation of high energy physics machines. Application of these measurements both before and after high power processing can reveal information about the structure but may be misinterpreted if measurement conditions are not carefully controlled. For this reason extensive studies to characterize the microwave measurements have been made at SLAC. For the bead pull a reproducible measurement of less than 1 degree of phase accuracy in total phase drift is needed in order to resolve issues such as phase changes due to structure damage during high power testing. Factors contributing to measurement errors include temperature drift, mechanical vibration, and limitations of measurement equipment such as the network analyzer. Results of this continuing effort will be presented.

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3 pages

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  • Presented at 22nd International Linear Accelerator Conference (LINAC 2004), , 8/16/2004-8/20/2004

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  • Report No.: SLAC-PUB-11193
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 890828
  • Archival Resource Key: ark:/67531/metadc881868

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  • May 13, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 7:03 p.m.

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Lewandowski, J.R.; Bowden, G.; Miller, R.H.; Wang, J.W. & /SLAC. Accelerator Structure Bead Pull Measurement at SLAC, article, May 13, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc881868/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.