Fabrication and testing of the transition section between modules of a wakefield accelerator

Zholents, A.; Lee, S.; Popovic, B.; Fedurin, M.; Kusche, K.; Li, W.; Nassiri, A.; Siy, A.; Sorsher, S.; Suthar, K.; Trakhtenberg, E.; Waldschmidt, G.

doi:10.1103/PhysRevAccelBeams.27.081303

Title: Fabrication and testing of the transition section between modules of a wakefield accelerator

Journal Article · 13 August 2024 · Physical Review Accelerators and Beams

DOI: https://doi.org/10.1103/PhysRevAccelBeams.27.081303 · OSTI ID:2474286

;

; Fedurin, M.; Kusche, K.;

; Nassiri, A.;

; Sorsher, S.; Suthar, K.; Trakhtenberg, E.; Waldschmidt, G.

The fabrication process is presented for a typical transition section located between each cylindrical corrugated waveguide structure comprising the wakefield accelerator module. The transition section includes couplers for extracting the 180 GHz ${TM}_{01}$ accelerating mode and separate couplers for extracting the 190 GHz ${HE}_{11}$ dipole mode, both modes induced by the electron bunch traversing the cylindrical corrugated waveguide structure. Extraction of the high-power accelerating mode reduces the heat load due to the subterahertz wave power dissipation within the corrugated accelerating structure. Extraction of the low-power dipole mode serves the purpose of detecting the electron bunch transverse oscillations within the wakefield accelerator and identifying the onset of beam breakup instability. Comprehensive testing of the fully functional transition section with an electron beam was done at the Accelerator Test Facility in Brookhaven National Laboratory which verified the functionality of the transition section. Published by the American Physical Society 2024

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-06CH11357; SC0012704

OSTI ID:: 2474286

Report Number(s):: BNL-226298-2024-JAAM; 081303

Journal Information:: Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Journal Issue: 8 Vol. 27; ISSN 2469-9888; ISSN PRABCJ

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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