| Paper | Title | Other Keywords | Page |
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| MOP1WA02 | The LCLS-II-HE, A High Energy Upgrade of the LCLS-II | ion, FEL, SRF, cryomodule | 6 |
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| The LCLS-II XFEL will be based on a 4 GeV CW SRF linac and will produce x-ray pulses at 1 MHz over the spectral range of 200 to 5,00 eV. The rf gun will be installed and tested in early 2018; cryomodules are being produced at Fermilab and Jefferson lab and shipped to SLAC; undulator segments are being fabricated at LBNL and measured at SLAC. In parallel, a High Energy upgrade will be described which would extend the linac to 8 GeV and increase the spectral range to 12.8 keV. | |||
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Slides MOP1WA02 [5.000 MB] | ||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-MOP1WA02 | ||
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||
| WEP2PT008 | Microbunching Instability Study in the Linac-Driven FERMI FEL Spreader Beam Line | ion, laser, FEL, electron | 108 |
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Suppression of microbunching instability (MBI) along high brightness electron beam delivery systems is a priority for Free Electron lasers (FELs) aiming at very narrow bandwidth. The impact of MBI on FEL spectral brilliance is aggravated by the growing demand for multi-user FEL facilities, which adopt multi-bend switchyard lines traversed by high charge density electron beams. This study provides practical guidelines to switchyards design largely immune to MBI, by focusing on the FERMI FEL Spreader line. First, two MBI analytical models [1, 2] are successfully benchmarked along the accelerator. Being the second model flexible enough to describe an arbitrary multi-bend line, and found it in agreement with particle tracking and experimental results, it was used to demonstrate that a newly proposed Spreader optics provides unitary MBI gain while preserving the electron beam brightness.
[1] Z. Huang and K.-J. Kim, Phys. Rev. Special Topics - Accel. Beams 5, 074401 (2002) [2] R.A. Bosch, K.J. Kleman, and J. Wu, Phys. Rev. Special Topics - Accel. Beams 11, 090702 (2008) |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-WEP2PT008 | ||
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| FRA1PL01 | Summary Report: Linac-Based Light Sources | ion, FEL, experiment, simulation | 199 |
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| This is the summary report of the linac-based light sources working group. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-FLS2018-FRA1PL01 | ||
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||