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Persistent URL http://purl.org/net/epubs/work/46397422
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Record Id 46397422
Title Coherent diffraction radiation imaging as an RMS bunch length monitor
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Abstract High-resolution bunch length measurement is of the utmost importance for current and future generations of light sources and linacs. It is also key to the optimisation of the final beam quality in plasma-based acceleration. We present progress in the development of a novel RMS bunch length monitor based on imaging the coherent diffraction radiation (CDR) produced by a non-invasive circular aperture. Due to the bunch lengths involved, the radiation produced is in the THz range. This has led to the development of a novel THz imaging system, which can be applied to low energy electron beams. For high energy beams the imaging system can be used as a single shot technique. Simulation results show that the profile of a CDR image of a beam is sensitive to bunch length and can thus be used as a diagnostic. The associated benefits of this imaging distribution methodology over the typical angular distribution measurement are discussed. Plans for experiments conducted at the SwissFEL (PSI, Switzerland), along with plans for future high energy single shot measurements are also presented.
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Language English (EN)
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Paper In Conference Proceedings In 9th International Particle Accelerator Conference (IPAC2018), Vancouver, Canada, 2 May 2018, (2018). doi:10.18429/JACoW-IPAC2018-WEPAF035 2018