Control and performance improvements of a pulse compressor in use for testing accelerating structures at high power

B Woolley, I Syratchev, A Dexter - Physical Review Accelerators and Beams, 2017 - APS
New developments relating to compact X-band, SLED-I type pulse compressors being
developed at CERN for testing high gradient structures are described. Pulse compressors of …

RF modulation studies on an S band pulse compressor

G Shu, FL Zhao, SL Pei, OZ Xiao - Chinese Physics C, 2016 - iopscience.iop.org
An S band SLED-type pulse compressor has been manufactured by the Institute of High
Energy Physics, Beijing, trying to reach 100 MW maximum input power, which means the …

An iterative learning control approach for radio frequency pulse compressor amplitude and phase modulation

A Rezaeizadeh, R Kalt, T Schilcher… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Radio Frequency (RF) pulse compressors are used in linear accelerators (Linac) to achieve
high power levels by shortening the RF pulse length. In their original form, the phase of the …

Design and verification of adaptive control to generate flat-top radio frequency power output of pulse compressor for SXFEL

Y Xu, J Zhang, C Xiao, W Fang, Z Zhao - Nuclear Instruments and Methods …, 2022 - Elsevier
The adaptive control-based low-level radio frequency (LLRF) algorithm was developed for
the two-bunch operation of the Shanghai Soft-X-ray Free Electron Laser Facility (SXFEL) …

[HTML][HTML] Drive beam stability studies and stabilization algorithms in CLIC Test Facility 3

T Persson, P Skowronski, R Corsini - Nuclear Instruments and Methods in …, 2014 - Elsevier
In this paper the study of the mechanisms responsible for the time varying beam current
losses in CTF3 (CLIC Test Facility 3), together with the feedbacks implemented to mitigate …

[PDF][PDF] Optimization of the SLED phase modulation parameters of the FERMI linac

C Serpico, M Dal Forno… - Proceedings of the North …, 2013 - accelconf.web.cern.ch
FERMI is a single-pass, linac-based, FEL user-facility covering the wavelength range from
80 nm to 4 nm and is located next to the third generation synchrotron radiation facility Elettra …

Design and test of double PI-control loop to generate flat-top output of RF pulse compressor

XU Yiming, Z Junqiang, X Chengcheng… - NUCLEAR …, 2023 - hjs.sinap.ac.cn
BackgroundShanghai Soft X-ray Free-electron Laser (SXFEL) is upgrading and requires to
operate in double-bunch mode instead of original mode to transport uniform energy along …

Control of the swiss free electron laser: Methods for precision control of pulsed-mode accelerator beams

A Rezaeizadeh, T Schilcher… - IEEE Control Systems …, 2017 - ieeexplore.ieee.org
The SwissFEL is capable of generating high-power, tunable X-ray pulses that are used to
study molecular structure and dynamic processes at extremely fast timescales. The FEL …

[PDF][PDF] RF Compressor (SLED) Phase-Modulation to Reduce Peak Fields in the MAX IV Linear Accelerator

J Ekström - 2023 - lup.lub.lu.se
Modern particle accelerators need strong electric fields in order to produce high energy
particles. Such high voltages are typically reached by injecting pulsed radio frequency …

[PDF][PDF] STUDY OF A BUNCH TRAIN TOTAL ENERGY SPREAD IN A LINAC USING SLED

H Shaker, MJ Boland - inspirehep.net
Abstract A SLED (SLac Energy Doubler) RF pulse compressor is a passive RF component
which increases the peak RF power level at the cost of reducing the pulse length. The …