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@inproceedings{lewellen:ipac2021-mopab371,
author = {J.W. Lewellen and D. Gorelov and D. Perez and M.E. Schneider and E.I. Simakov},
title = {{A Coupon Tester for Normal Conducting High-Gradient Materials}},
booktitle = {Proc. IPAC'21},
pages = {1147--1150},
eid = {MOPAB371},
language = {english},
keywords = {cavity, coupling, vacuum, RF-structure, klystron},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-MOPAB371},
url = {https://jacow.org/ipac2021/papers/mopab371.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB371},
abstract = {{A coupon tester is an RF structure used to subject a material sample to very high RF fields, with the fields on the sample, or coupon, being higher than elsewhere in the cavity. To date, most such cavities were originally intended to explore the RF properties of superconducting materials, and can expose the sample to strong magnetic fields, but weak to no electric fields. As part of a program to develop materials and structures for high-gradient (> 100 MV/m), low-breakdown-rate normal-conducting accelerators, we have designed a C-band (5.712 GHz) cavity intended to subject samples to both magnetic and electric fields comparable to those experienced in high-gradient structure designs, using a TM-mode cavity; the electric and magnetic fields along the sample coupon can be directly compared to the fields on the iris of high-gradient structures. This poster will present the design criteria for our coupon tester cavity, nominal operating parameters, and our structure concept. The cavity design will be refined over the next several months, and will be constructed and in service near the start of 2022.}},
}