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Persistent URL http://purl.org/net/epubs/work/61859
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Record Id 61859
Title A velocity bunching scheme for creating sub-picosecond electron bunches from an RF photocathode gun
Abstract Sub-picosecond electron bunches are in demand for various applications including Free Electron Lasers and electron diffraction experiments. Typically, for Free Electron Lasers, a multiple picosecond scale bunch is produced from a photoinjector with compression achieved via one or more magnetic chicanes by providing an appropriate energy chirp to the bunch in the preceding linac sections. This approach is complex, requiring many components, often including a higher harmonic linac section to linearise the longitudinal phase-space, and careful tuning in order to minimise emittance blow-up due to coherent synchrotron radiation. We present a scheme to deliver sub-picosecond electron bunches, based on a normal conducting RF gun and two short linac sections, one for providing velocity bunching and the second to capture the compressed bunch and accelerate to tens of MeV where the beam properties are then essentially frozen.
Organisation ASTeC , ASTeC-AP , STFC
Keywords Physics , ASTeC 2011-2012
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Language English (EN)
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Paper In Conference Proceedings In 2nd International Particle Accelerator Conference (IPAC11), San Sebastian, Spain, 4-9 Sep 2011, (2011). thpc132.pdf 2011