Design of a cylindrical corrugated waveguide for a collinear wakefield accelerator
Abstract
We present the design of a cylindrical corrugated waveguide for use in the A-STAR accelerator under development at Argonne National Laboratory. A-STAR is a high gradient, high bunch repetition rate collinear wakefield accelerator that uses a 1-mm inner radius corrugated waveguide to produce a 90 MV m-1, 180-GHz accelerating field when driven by a 10-nC drive bunch. To select a corrugation geometry for A-STAR, we analyze three types of corrugation profiles in the overmoded regime with a/lambda ranging from 0.53 to 0.67, where a is the minor radius of the corrugated waveguide and lambda is the free-space wavelength. We find that the corrugation geometry that optimizes the accelerator performance is a rounded profile with vertical sidewalls and a corrugation period p << a. Trade-offs between the peak surface fields and thermal loading are presented along with calculations of pulse heating and steady-state power dissipation. In addition to the TM01 accelerating mode, properties of the HEM11 mode and contributions from higher order modes are discussed.
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC)
- OSTI Identifier:
- 1902584
- Alternate Identifier(s):
- OSTI ID: 2203839
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 25 Journal Issue: 12; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; Corrugated Waveguide; Wakefield Accelerator; Electromagnetic field calculations; Accelerators & Beams
Citation Formats
Siy, A., Behdad, N., Booske, J., Waldschmidt, G., and Zholents, A. Design of a cylindrical corrugated waveguide for a collinear wakefield accelerator. United States: N. p., 2022.
Web. doi:10.1103/PhysRevAccelBeams.25.121601.
Siy, A., Behdad, N., Booske, J., Waldschmidt, G., & Zholents, A. Design of a cylindrical corrugated waveguide for a collinear wakefield accelerator. United States. https://doi.org/10.1103/PhysRevAccelBeams.25.121601
Siy, A., Behdad, N., Booske, J., Waldschmidt, G., and Zholents, A. Wed .
"Design of a cylindrical corrugated waveguide for a collinear wakefield accelerator". United States. https://doi.org/10.1103/PhysRevAccelBeams.25.121601.
@article{osti_1902584,
title = {Design of a cylindrical corrugated waveguide for a collinear wakefield accelerator},
author = {Siy, A. and Behdad, N. and Booske, J. and Waldschmidt, G. and Zholents, A.},
abstractNote = {We present the design of a cylindrical corrugated waveguide for use in the A-STAR accelerator under development at Argonne National Laboratory. A-STAR is a high gradient, high bunch repetition rate collinear wakefield accelerator that uses a 1-mm inner radius corrugated waveguide to produce a 90 MV m-1, 180-GHz accelerating field when driven by a 10-nC drive bunch. To select a corrugation geometry for A-STAR, we analyze three types of corrugation profiles in the overmoded regime with a/lambda ranging from 0.53 to 0.67, where a is the minor radius of the corrugated waveguide and lambda is the free-space wavelength. We find that the corrugation geometry that optimizes the accelerator performance is a rounded profile with vertical sidewalls and a corrugation period p << a. Trade-offs between the peak surface fields and thermal loading are presented along with calculations of pulse heating and steady-state power dissipation. In addition to the TM01 accelerating mode, properties of the HEM11 mode and contributions from higher order modes are discussed.},
doi = {10.1103/PhysRevAccelBeams.25.121601},
journal = {Physical Review Accelerators and Beams},
number = 12,
volume = 25,
place = {United States},
year = {Wed Dec 07 00:00:00 EST 2022},
month = {Wed Dec 07 00:00:00 EST 2022}
}
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