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@INPROCEEDINGS{Wolff:588723,
author = {Wolff, Jonas and Eschke, Juergen and Goessel, Andre and
Kasprzak, Karol and Reschke, Detlef and Steder, Lea and
Trelle, Lennart and Wiencek, Mateusz and Hillert, Wolfgang},
title = {{I}mpact of {M}edium {T}emperature {H}eat {T}reatments on
the {M}agnetic {F}lux {E}xpulsion {B}ehavior of {SRF}
{C}avities},
address = {Geneva, Switzerland},
publisher = {JACoW Publishing},
reportid = {PUBDB-2023-04897},
isbn = {978-3-95450-234-9},
pages = {726 - 730},
year = {2023},
note = {Literaturangaben;},
comment = {[Ebook] 21st International Conference on RF
Superconductivity, 25-30 June 2023, Amway Grand Plaza Hotel,
Grand Rapids, Michigan, USA : proceedings / Gibbs, Sumner ,
[Geneva] : JACoW Publishing, [2023],},
booktitle = {[Ebook] 21st International Conference
on RF Superconductivity, 25-30 June
2023, Amway Grand Plaza Hotel, Grand
Rapids, Michigan, USA : proceedings /
Gibbs, Sumner , [Geneva] : JACoW
Publishing, [2023],},
abstract = {Medium temperature (mid-T) heat treatments at about 300 °C
are used to enhance the intrinsic quality factor of
superconducting radio frequency (SRF) cavities.
Unfortunately, such treatments potentially increase the
sensitivity to trapped magnetic flux and consequently the
surface resistance of the cavity. For this reason, it is
crucial to maximizethe expulsion of magnetic flux during the
cool down. The flux expulsion behavior is next to the heat
treatment mainly determined by the geometry, the niobium
grain size and thegrain orientation. However, it is also
affected by parameters of the cavity performance tests like
the cool down velocity, the spatial temperature gradient
along the cavity surface andthe magnetic flux density during
the transition of the critical temperature. To improve the
flux expulsion behavior and hence the efficiency of future
accelerator facilities, the impact of these adjustable
parameters as well as the mid-T heat treatment on 1.3 GHz
TESLA-Type single-cell cavities is investigated by a new
approach of a magnetometric mapping system. In this
contribution first performance test results of cavities
before and after mid-T heat treatment are presented},
month = {Jun},
date = {2023-06-26},
organization = {21st International Conference on
Radio-Frequency Superconductivity,
Grand Rapids, Michigan (USA), 26 Jun
2023 - 30 Jun 2023},
keywords = {Accelerator Physics (Other) / SRF Technology (Other)},
cin = {MSL / MKS1},
cid = {I:(DE-H253)MSL-20170609 / I:(DE-H253)MKS1-20210408},
pnm = {621 - Accelerator Research and Development (POF4-621)},
pid = {G:(DE-HGF)POF4-621},
experiment = {EXP:(DE-H253)SRF-RD-20221201},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
doi = {10.18429/JACoW-SRF2023-WEPWB065},
url = {https://bib-pubdb1.desy.de/record/588723},
}