11.424 Ghz Stripline Transversal Filter for Sub-Picosecond Bunch Timing Measurements

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Measurement of time-of-arrival or instantaneous longitudinal position is a fundamental beam diagnostic. We present results from a stripline transversal periodic coupler structure which forms the heart of a sub-ps beam timing detector. This filter structure approximates a sinx/x response in the frequency domain which corresponds to a limited pulse length response in the time domain. These techniques have been used extensively in beam feedback systems at 3 GHz center frequencies with operational single-shot resolutions of 200 fs [1]. We present a new design, based on a 11.424 GHz center frequency, which is intended to offer a factor of four improvement ... continued below

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5 pages

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Van Winkle, D.; Young, A. & Fox, J. D. August 26, 2010.

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Measurement of time-of-arrival or instantaneous longitudinal position is a fundamental beam diagnostic. We present results from a stripline transversal periodic coupler structure which forms the heart of a sub-ps beam timing detector. This filter structure approximates a sinx/x response in the frequency domain which corresponds to a limited pulse length response in the time domain. These techniques have been used extensively in beam feedback systems at 3 GHz center frequencies with operational single-shot resolutions of 200 fs [1]. We present a new design, based on a 11.424 GHz center frequency, which is intended to offer a factor of four improvement in time resolution. Two-dimensional electromagnetic simulation results are shown, and the design optimization approach leading to the final circuit implementation is illustrated. The prototype circuit has been fabricated on 64mil Rogers 4003 and lab frequency domain and time domain data are compared to the 2-D simulation results. Performance of the prototype circuit is shown with applicability to sub-ps beam measurements in LINAC and FEL applications.

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5 pages

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  • Contributed to 14th Beam Instrumentation Workshop (BIW10), Santa Fe, New Mexico, 2-6 May 2010

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  • Report No.: SLAC-PUB-14168
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 992955
  • Archival Resource Key: ark:/67531/metadc1013802

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  • August 26, 2010

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 2, 2017, 7:28 p.m.

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Van Winkle, D.; Young, A. & Fox, J. D. 11.424 Ghz Stripline Transversal Filter for Sub-Picosecond Bunch Timing Measurements, article, August 26, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1013802/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.