Development of 3-cell Traveling Wave SRF Cavity
F. Furuta (1), V. Yakovlev (1), T. Khabiboulline (1), K. McGee (1), R., Kostin (2), P. Avrakhov (2) ((1) Fermi National Accelerator Laboratory,, Batavia, USA, (2) Euclid Techlabs, Bolingbrook, IL, USA)

TL;DR
This paper reports the development and initial testing of a 3-cell traveling wave superconducting RF cavity, including design, fabrication, and room-temperature demonstration, advancing the technology towards cryogenic operation.
Contribution
It presents the first 3-cell proof-of-principle traveling wave SRF cavity with resonance control, moving the technology closer to practical cryogenic applications.
Findings
TW resonance was successfully excited at room temperature
A TW resonance control tuner was fabricated and preliminarily tested
The 3-cell cavity is prepared for cryogenic testing
Abstract
Traveling wave SRF cavity is a new technology and requires a multi-stage process for development. Conceptual designs have been proposed to adopt TW resonance in an SRF cavity The early stages of developments have been funded by several SBIR grants to Euclid Techlabs which were completed in collaboration with Fermilab. A 3-cell proof-of-principle TW cavity was fabricated as part of that and demonstrated the TW resonance excitation at room temperature. A TW resonance control tuner for the 3-cell was also fabricated and the preliminary tests were performed. Now, the 3-cell cavity is being processed and prepared for the first cryogenic testing.
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Taxonomy
TopicsParticle accelerators and beam dynamics · Particle Accelerators and Free-Electron Lasers · Gyrotron and Vacuum Electronics Research
