Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II
We present the results from studies of soft x-ray seeding options for the LCLS–II x-ray free electron laser (FEL) at SLAC. The LCLS-II will use superconducting accelerator technology to produce x-ray pulses at up to 1 MHz repetition rate using 4 GeV electron beams. If properly seeded, these pulses w...
Main Authors: | , , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
American Physical Society
2019-11-01
|
Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.22.110701 |
id |
doaj-1cd63962046e4e1f93a84d4ccdaf5640 |
---|---|
record_format |
Article |
spelling |
doaj-1cd63962046e4e1f93a84d4ccdaf56402020-11-25T02:35:51ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882019-11-01221111070110.1103/PhysRevAccelBeams.22.110701Soft x-ray seeding studies for the SLAC Linac Coherent Light Source IIE. HemsingG. MarcusW. M. FawleyR. W. SchoenleinR. CoffeeG. DakovskiJ. HastingsZ. HuangD. RatnerT. RaubenheimerG. PennWe present the results from studies of soft x-ray seeding options for the LCLS–II x-ray free electron laser (FEL) at SLAC. The LCLS-II will use superconducting accelerator technology to produce x-ray pulses at up to 1 MHz repetition rate using 4 GeV electron beams. If properly seeded, these pulses will be nearly fully coherent, and highly stable in photon energy, bandwidth, and intensity, thus enabling unique experiments with intense high-resolution soft x-rays. Given the expected electron beam parameters from start to end simulations and predicted FEL performance, our studies reveal echo enabled harmonic generation (EEHG) and soft x-ray self-seeding (SXRSS) as promising and complementary seeding methods. We find that SXRSS has the advantage of simplicity and will deliver 5-35 times higher spectral brightness than EEHG in the 1–2 nm range, but lacks some of the potential for phase-stable multipulse and multicolor FEL operations enabled by external laser seeding with EEHG.http://doi.org/10.1103/PhysRevAccelBeams.22.110701 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
E. Hemsing G. Marcus W. M. Fawley R. W. Schoenlein R. Coffee G. Dakovski J. Hastings Z. Huang D. Ratner T. Raubenheimer G. Penn |
spellingShingle |
E. Hemsing G. Marcus W. M. Fawley R. W. Schoenlein R. Coffee G. Dakovski J. Hastings Z. Huang D. Ratner T. Raubenheimer G. Penn Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II Physical Review Accelerators and Beams |
author_facet |
E. Hemsing G. Marcus W. M. Fawley R. W. Schoenlein R. Coffee G. Dakovski J. Hastings Z. Huang D. Ratner T. Raubenheimer G. Penn |
author_sort |
E. Hemsing |
title |
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II |
title_short |
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II |
title_full |
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II |
title_fullStr |
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II |
title_full_unstemmed |
Soft x-ray seeding studies for the SLAC Linac Coherent Light Source II |
title_sort |
soft x-ray seeding studies for the slac linac coherent light source ii |
publisher |
American Physical Society |
series |
Physical Review Accelerators and Beams |
issn |
2469-9888 |
publishDate |
2019-11-01 |
description |
We present the results from studies of soft x-ray seeding options for the LCLS–II x-ray free electron laser (FEL) at SLAC. The LCLS-II will use superconducting accelerator technology to produce x-ray pulses at up to 1 MHz repetition rate using 4 GeV electron beams. If properly seeded, these pulses will be nearly fully coherent, and highly stable in photon energy, bandwidth, and intensity, thus enabling unique experiments with intense high-resolution soft x-rays. Given the expected electron beam parameters from start to end simulations and predicted FEL performance, our studies reveal echo enabled harmonic generation (EEHG) and soft x-ray self-seeding (SXRSS) as promising and complementary seeding methods. We find that SXRSS has the advantage of simplicity and will deliver 5-35 times higher spectral brightness than EEHG in the 1–2 nm range, but lacks some of the potential for phase-stable multipulse and multicolor FEL operations enabled by external laser seeding with EEHG. |
url |
http://doi.org/10.1103/PhysRevAccelBeams.22.110701 |
work_keys_str_mv |
AT ehemsing softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT gmarcus softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT wmfawley softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT rwschoenlein softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT rcoffee softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT gdakovski softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT jhastings softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT zhuang softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT dratner softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT traubenheimer softxrayseedingstudiesfortheslaclinaccoherentlightsourceii AT gpenn softxrayseedingstudiesfortheslaclinaccoherentlightsourceii |
_version_ |
1724803091973275648 |