Paper | Title | Page |
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THPP20 | Virtual Slit for Improved Resolution in Longitudinal Emittance Measurement | 241 |
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Funding: This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC0500OR22725 with the U.S. Department of Energy. A technique to reduce point-spread originating from physical slit width in emittance measurements is described. This technique is developed to improve phase resolution in a longitudinal emittance apparatus consisting of a dipole magnet, energy-selecting slit and bunch shape monitor. In this apparatus, the energy and phase resolutions are directly proportional to the width of the slit, but the virtual slit method enables sub-slit resolution. The bunch phase profile is measured at two points in the energy distribution with a separation less than the physical slit width. The difference of these two profiles is used to reconstruct the profile from a virtual slit of width equal to the separation. |
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Poster THPP20 [0.285 MB] | |
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-THPP20 | |
About • | paper received ※ 01 September 2020 paper accepted ※ 18 September 2020 issue date ※ 30 October 2020 | |
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