An experimental application of machine learning algorithms to optimize the FEL lasing via beam trajectory tuning at Dalian Coherent Light Source

J Sun, X Li, J Yang, L Zeng, J Shao, Y Yu… - Nuclear Instruments and …, 2024 - Elsevier
The lasing optimization of Free-Electron Laser (FEL) facilities is a time-consuming and
challenging task. Instead of operating manually by experienced operators, implementation …

Multiplexed photoinjector optimization for high-repetition-rate free-electron lasers

Z Zhang, Y Ding, Z Huang, F Zhou - Frontiers in Physics, 2023 - frontiersin.org
The multiplexing capabilities of superconducting X-ray free-electron lasers (FELs) have
gained much attention in recent years. The demanding requirements for photon properties …

[PDF][PDF] The LCLS-II injector design

JF Schmerge, A Brachmann, D Dowell, A Fry… - FEL2014, Basel …, 2014 - jacow.org
The new LCLS-II project will construct a 4 GeV continuous wave (CW) superconducting
linear accelerator to simultaneously feed two undulators which will cover the spectral ranges …

Analysis of slice transverse emittance evolution in a very-high-frequency gun photoinjector

H Chen, L Zheng, P Huang, C Song, Y Du, R Li… - … Review Accelerators and …, 2021 - APS
Emittance is a key figure-of-merit for high brightness electron beams that enable the success
of a broad range of modern accelerator-based instruments. With the successful …

[PDF][PDF] Start-to-end simulations for an X-ray FEL oscillator at the LCLS-II and LCLS-II-HE

W Qin, S Huang, KX Liu, KJ Kim… - Proc. 2017 …, 2017 - accelconf.web.cern.ch
The proposed high repetition-rate electron beam from the LCLS-II and LCLS-II High Energy
(LCLS-II-HE) upgrade are promising sources as drivers for an X-ray FEL Oscillator (XFELO) …

[LIVRE][B] Conceptual design of the PERLE injector

BR Hounsell - 2022 - search.proquest.com
Energy recovery linacs (ERLs) are a type of accelerator that works by decelerating the
initially accelerated beam once it has been used to recover its energy back into the radio …

[LIVRE][B] Ultra-high accelerating gradients in radio-frequency cryogenic copper structures

AD Cahill - 2017 - search.proquest.com
Normal conducting radio-frequency (rf) particle accelerators have many applications,
including colliders for high energy physics, high-intensity synchrotron light sources, non …

[PDF][PDF] LCLS-II injector beamline design and RF coupler correction

F Zhou, DH Dowell, RK Li, TO Raubenheimer… - 2015 - slac.stanford.edu
Abstract LCLS-II CW injector beamline consists of a 186 MHz normal conducting (NC) RF
gun for beam generation and acceleration to 750 keV, two solenoids for the beam focusing …

Novel Designs and Photoemission Physics to Enhance Brightness of RF Photoinjectors

B Sims - 2025 - search.proquest.com
High-brightness injectors are key to improvements in UED, XFELs, and Laser Compton Back
Scattering technologies as they increase their resolution, efficiency, and performance when …

[PDF][PDF] Beam Dynamics Optimization of a Normal-Conducting Gun Based CW Injector for the European XFEL

H Shaker, H Qian, S Lal, G Shu… - 39th Free Electron Laser …, 2019 - academia.edu
The European XFEL is operating up to 17.5 GeV electron energy with maximum 0.65% duty
cycle. There is a prospect for continuous wave and long pulse mode (CW/LP) operation of …