Measurements and modeling of coherent synchrotron radiation and its impact on the Linac Coherent Light Source electron beam
Open Access
- 17 March 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Special Topics - Accelerators and Beams
- Vol. 12 (3), 030704
- https://doi.org/10.1103/physrevstab.12.030704
Abstract
In order to reach the high peak current required for an x-ray free electron laser, two separate magnetic dipole chicanes are used in the Linac Coherent Light Source accelerator to compress the electron bunch length in stages. In these bunch compressors, coherent synchrotron radiation (CSR) can be emitted either by a short electron bunch or by any longitudinal density modulation that may be on the bunch. In this paper, we report detailed measurements of the CSR-induced energy loss and transverse emittance growth in these compressors. Good agreement is found between the experimental results and multiparticle tracking studies. We also describe direct observations of CSR at optical wavelengths and compare with analytical models based on beam microbunching.Keywords
This publication has 13 references indexed in Scilit:
- Commissioning the Linac Coherent Light Source injectorPhysical Review Special Topics - Accelerators and Beams, 2008
- Experimental characterization of the transverse phase space of a 60-MeV electron beam through a compressor chicanePhysical Review Special Topics - Accelerators and Beams, 2006
- Three-dimensional quasistatic model for high brightness beam dynamics simulationPhysical Review Special Topics - Accelerators and Beams, 2006
- Overview of CSR codesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2006
- Suppression of microbunching instability in the linac coherent light sourcePhysical Review Special Topics - Accelerators and Beams, 2004
- Start-to-end simulation of self-amplified spontaneous emission free electron lasers from the gun through the undulatorNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002
- Emittance growth and energy loss due to coherent synchrotron radiation in a bunch compressorPhysical Review Special Topics - Accelerators and Beams, 2000
- An Object-Oriented Parallel Particle-in-Cell Code for Beam Dynamics Simulation in Linear AcceleratorsJournal of Computational Physics, 2000
- Emittance Growth during Bunch Compression in the CTF-IIPhysical Review Letters, 2000
- Suppression of Coherent Radiation by Electrons in a SynchrotronPhysical Review B, 1954