A5001328502- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Gyrotron and Vacuum Electronics Research
- Crystallography and Radiation Phenomena
- Microwave Engineering and Waveguides
- Advanced X-ray Imaging Techniques
Argonne National Laboratory
2022-2024
University of Wisconsin–Madison
2022-2023
Abstract A compact collinear wakefield accelerator has been designed for an X-ray free-electron laser capable of operating at a pulse repetition rate in the tens kilohertz. The maximum achievable accelerating gradient determined, with its limitation linked to beam breakup instability. fabrication techniques principal components including generation, couplers excess power extraction and diagnostics, focusing quadrupoles, novel undulator have discussed. Results from various laboratory...
Significant progress has been made at Argonne National Laboratory in the development of a compact wakefield accelerator based on cylindrical corrugated waveguide with 2-mm ID and fine corrugations wall. The fabrication process 10-cm-long structures established high quality final product confirmed by precision metrology. Several samples have tested using electron beam Brookhaven Laboratory's Accelerator Test Facility. frequency group velocity fundamental monopole ${\mathrm{TM}}_{01}$ mode...
We present the design of a cylindrical corrugated waveguide for use in A-STAR accelerator under development at Argonne National Laboratory. is high gradient, bunch repetition rate collinear wakefield that uses 1-mm inner radius to produce $90\text{ }\text{ }\mathrm{MV}\text{ }{\mathrm{m}}^{\ensuremath{-}1}$, 180-GHz accelerating field when driven by 10-nC drive bunch. To select corrugation geometry A-STAR, we analyze three types profiles overmoded regime with $a/\ensuremath{\lambda}$ ranging...
The electromagnetic design of a transition section consisting couplers for extracting the 180-GHz ${\mathrm{TM}}_{01}$ accelerating mode and 190-GHz ${\mathrm{HE}}_{11}$ dipole cylindrical corrugated waveguide used as collinear wakefield accelerator is presented. Extraction high power reduces dissipation in structure allows much weaker to be isolated monitor stability 10-nC electron drive bunch. final demonstrates wide bandwidth coupling efficiency two couplers. was also optimized have...
The fabrication process is presented for a typical transition section located between each cylindrical corrugated waveguide structure comprising the wakefield accelerator module. includes couplers extracting 180 GHz <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>TM</a:mi></a:mrow><a:mrow><a:mn>01</a:mn></a:mrow></a:msub></a:mrow></a:math> accelerating mode and separate 190 <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...