Chirped Electron Bunch Energy Compensation for an X-Ray Light Source
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5900 Harper Rd., Suite 102, Solon, OH, 44139-1866
AbstractBeam exiting the linac in a soft Xray FEL has an undesirable chirp (head-tail energy spread). We have designed a planar dielectric structure that can remove the chirp by making use of the bunch & apos;s own wakefield. The device is entirely passive, requiring no other external rf power. Using Euclid & apos;s BBU-3000 code, beam dynamics in the device will be studied. A prototype structure will be constructed and bench tested. Plans for an experiment at ANL/APS in phase II will be finalized. Commercial Applications and Other Benefits: This technique is an entirely passive method of removing the energy spread from a linac beam used to drive an Xray FEL. It can also be applied to any other accelerator to remove a similar axial position-energy correlation in the bunch
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