• Open Access

Conceptual design of a sapphire loaded coupler for superconducting radio-frequency 1.3 GHz cavities

Chen Xu and Sami Tantawi
Phys. Rev. Accel. Beams 19, 022002 – Published 25 February 2016
An article within the collection: IPAC 2014 Conference Edition

Abstract

This paper explores a hybrid mode rf structure that served as a superconducting radio-frequency coupler. This application achieves a reflection S(1,1) varying from 0 to 30db and delivers cw power at 7 KW. The coupler has good thermal isolation between the 2 and 300 K sections due to vacuum separation. Only one single hybrid mode can propagate through each section, and no higher order mode is coupled. The analytical and numerical analysis for this coupler is given and the design is optimized. The coupling mechanism to the cavity is also discussed.

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  • Received 18 November 2015

DOI:https://doi.org/10.1103/PhysRevAccelBeams.19.022002

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Accelerators & Beams

Collections

This article appears in the following collection:

IPAC 2014 Conference Edition

A collection of articles that expand upon original research presented at the 2014 International Particle Accelerator Conference (June 15-20, 2014, Dresden, Germany).

Authors & Affiliations

Chen Xu* and Sami Tantawi

  • SLAC National Accelerator Laboratory, Stanford University, 2575 Sand Hill Road, Menlo Park, California 94025, USA

  • *chenxu@slac.stanford.edu

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Issue

Vol. 19, Iss. 2 — February 2016

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