Performance of a High Resolution Cavity Beam Position Monitor System

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It has been estimated that an RF cavity Beam Position Monitor (BPM) could provide a position measurement resolution of less than one nanometer. We have developed a high resolution cavity BPM and associated electronics. A triplet comprised of these BPMs was installed in the extraction line of the Accelerator Test Facility (ATF) at the High Energy Accelerator Research Organization (KEK) for testing with its ultra-low emittance beam. The three BPMs were each rigidly mounted inside an alignment frame on six variable-length struts which could be used to move the BPMs in position and angle. We have developed novel methods for ... continued below

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PDF-file: 28 pages; size: 3.5 Mbytes

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Walston, S; Boogert, S; Chung, C; Fitsos, P; Frisch, J; Gronberg, J et al. December 18, 2006.

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Description

It has been estimated that an RF cavity Beam Position Monitor (BPM) could provide a position measurement resolution of less than one nanometer. We have developed a high resolution cavity BPM and associated electronics. A triplet comprised of these BPMs was installed in the extraction line of the Accelerator Test Facility (ATF) at the High Energy Accelerator Research Organization (KEK) for testing with its ultra-low emittance beam. The three BPMs were each rigidly mounted inside an alignment frame on six variable-length struts which could be used to move the BPMs in position and angle. We have developed novel methods for extracting the position and tilt information from the BPM signals including a robust calibration algorithm which is immune to beam jitter. To date, we have demonstrated a position resolution of 15.6 nm and a tilt resolution of 2.1 {micro}rad over a dynamic range of approximately {+-} 20 {micro}m.

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PDF-file: 28 pages; size: 3.5 Mbytes

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  • Journal Name: Nuclear Instruments & Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 578, no. 1, July 21, 2007, pp. 1-22; Journal Volume: 578; Journal Issue: 1

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  • Report No.: UCRL-JRNL-226922
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 936951
  • Archival Resource Key: ark:/67531/metadc902329

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 18, 2006

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 6, 2016, 3:38 p.m.

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Walston, S; Boogert, S; Chung, C; Fitsos, P; Frisch, J; Gronberg, J et al. Performance of a High Resolution Cavity Beam Position Monitor System, article, December 18, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc902329/: accessed July 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.