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@inproceedings{simakov:ipac2021-mopab342,
author = {E.I. Simakov and J.E. Acosta and P. Borchard and D. Gorelov and M.F. Kirshner and J.W. Lewellen and M.E. Schneider},
% author = {E.I. Simakov and J.E. Acosta and P. Borchard and D. Gorelov and M.F. Kirshner and J.W. Lewellen and others},
% author = {E.I. Simakov and others},
title = {{Design, Fabrication, and Commissioning of the Mode Launchers for High Gradient C-Band Cavity Testing at LANL}},
booktitle = {Proc. IPAC'21},
pages = {1060--1063},
eid = {MOPAB342},
language = {english},
keywords = {GUI, cavity, klystron, simulation, MMI},
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-MOPAB342},
url = {https://jacow.org/ipac2021/papers/mopab342.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB342},
abstract = {{This poster will report on the design, fabrication, and operation status of the new high gradient C-band TM01 mode launchers for the high gradient C-band test stand at LANL. Modern applications require accelerators with optimized cost of construction and operation, naturally calling for high-gradient acceleration. At LANL we commissioned a test stand powered by a 50 MW, 5.712 GHz Canon klystron. The test is capable of conditioning single cell accelerating cavities for operation at surface electric fields up to 300 MV/m. The rf field is coupled into the cavity from a WR187 waveguide through a mode launcher that converts the fundamental mode of the rectangular waveguide into the TM01 mode of the circular waveguide. Several designs for mode launchers were considered and the final design was chosen based on a compromise between the field enhancements, bandwidth, and simplicity and cost of fabrication. Four mode launchers were fabricated and cold-tested. Two mode launchers with the best transmission characteristics were installed and conditioned to high power. The presentation will report achieved gradients, breakdown probabilities, and other characteristics measured during operation.}},
}