19–24 May 2024
Music City Center
US/Central timezone

Fabrication and testing of mode couplers for a 180 GHz colinear wakefield accelerator

MOPR15
20 May 2024, 16:00
2h
Rock 'n Roll (MCC Exhibit Hall A)

Rock 'n Roll

MCC Exhibit Hall A

Poster Presentation MC3.A16 Advanced Concepts Monday Poster Session

Speaker

Branko Popovic (Argonne National Laboratory)

Description

A corrugated waveguide based collinear wakefield accelerator is under development at Argonne National Laboratory. The accelerating mode is operating at 180 GHz with a high average power level up to 600 W compounding at the end of the 0.5 m long accelerator module. It is extracted by a dedicated coupler to prevent excessive heating of the corrugated structure of the next accelerator module downstream. Also, it is necessary to monitor beam offsets from the center of the corrugated structure. It is done by utilizing the offset beam’s induced wakefield dipole mode at 190 GHz and extracting it to diagnostic electronics via the second dedicated coupler. Both are contained in the transition section between the accelerator modules*. This paper presents the mechanical design, fabrication, and performance testing of the transition section. Testing included mmWave measurements at ANL and electron beam measurements at Brookhaven National Lab’s Accelerator Test Facility. Both tests involved characterizations of the wakefield modes and coupler’s performances.

Footnotes

  • A. Siy, N. Behdad, J. Booske, G. Waldschmidt, and A. Zholents, "Electromagnetic design of the transition section between modules of a wakefield accelerator", Phys. Rev. Accel. Beams 26, 012802(2023), https://journals.aps.org/prab/pdf/10.1103/PhysRevAccelBeams.26.012802

Funding Agency

This manuscript is based upon work supported by Laboratory Directed Research and Development (LDRD) funding from Argonne National Laboratory, provided by the Director, Office of Science, of the U.S. D

Region represented North America
Paper preparation format LaTeX

Primary author

Branko Popovic (Argonne National Laboratory)

Co-authors

Alexander Siy (University of Wisconsin-Madison) Alexander Zholents (Argonne National Laboratory) Ali Nassiri (Argonne National Laboratory) Emil Trakhtenberg (Argonne National Laboratory) Geoff Waldschmidt (Argonne National Laboratory) Kamlesh Suthar (Argonne National Laboratory) Karl Kusche (Brookhaven National Laboratory) Mikhail Fedurin (Brookhaven National Laboratory) Semyon Sorsher (Argonne National Laboratory) Soonhong Lee (Argonne National Laboratory) William Li (Brookhaven National Laboratory)

Presentation materials

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