Linac Coherent Light Source Longitudinal Feedback Model

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Description

The Linac Coherent Light Source (LCLS) will be the world's first x-ray free-electron laser (FEL). To ensure the vitality of FEL lasing, it is critical to preserve the high quality of the electron beam during acceleration and compression. The peak current and final energy are very sensitive to system jitter. To minimize this sensitivity, a longitudinal feedback system on the bunch length and energy is required, together with other diagnostics and feedback systems (e.g., on transverse phase space). Here, we describe a simulation framework, which includes a realistic jitter model for the LCLS accelerator system, the RF acceleration, structure wakefield, ... continued below

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3 pages

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Wu, Juhao; Emma, P.; Hendrickson, L. & /SLAC June 15, 2005.

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Description

The Linac Coherent Light Source (LCLS) will be the world's first x-ray free-electron laser (FEL). To ensure the vitality of FEL lasing, it is critical to preserve the high quality of the electron beam during acceleration and compression. The peak current and final energy are very sensitive to system jitter. To minimize this sensitivity, a longitudinal feedback system on the bunch length and energy is required, together with other diagnostics and feedback systems (e.g., on transverse phase space). Here, we describe a simulation framework, which includes a realistic jitter model for the LCLS accelerator system, the RF acceleration, structure wakefield, and second order optics. Simulation results show that to meet the tight requirements set by the FEL, such a longitudinal feedback system is mandatory.

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3 pages

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  • Contributed toParticle Accelerator Conference (PAC 05), , 5/16/2005-5/20/2005

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  • Report No.: SLAC-PUB-11276
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 890400
  • Archival Resource Key: ark:/67531/metadc873176

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  • June 15, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 29, 2016, 6:42 p.m.

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Wu, Juhao; Emma, P.; Hendrickson, L. & /SLAC. Linac Coherent Light Source Longitudinal Feedback Model, article, June 15, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc873176/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.