<div class="csl-bib-body">
<div class="csl-entry">Hofmann, D., Semper, F., Unterrainer, R., Bodenseher, A., Eisterer, M., & Ballarino, A. (2025, September 24). <i>Assessing the local electric field of coated conductors during overcurrent pulses</i> [Conference Presentation]. EUCAS 2025, Porto, Portugal.</div>
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The design and development of high-temperature superconducting magnets require a profound understanding of the magnets behavior under overcurrent conditions arising from operating condition disturbances. This knowledge is indispensable for averting damage to the system from such events. This is typically achieved by incorporating an adequate amount of conventional conductors (predominantly copper) in parallel as a stabilizer and a suitable quench protection system that rapidly terminates the current flow when necessary. In order to design the stabilizer and quench protection, it is necessary to have precise knowledge about the local dissipation, which defines the local temperature rise and, ultimately, the formation of hot-spots and damage to the superconducting layer. In this presentation, we will discuss a novel apparatus recently developed at TU Vienna that allows for the assessment of the local (2-dimensional) electric field at pulsed overcurrents with a resolution of approximately 100 µm. The gathered electric field data can be evaluated at a specific current and provide information about its temporal progression at a defect. In combination with scanning Hall probe microscopy, from which the local current during a current pulse can be derived, the local dissipation can be calculated. This will ultimately lead to a better understanding of hot-spot formation and possibly to the identification of problematic defects using a reel-to-reel magnetization measurement.
en
dc.description.sponsorship
European Commission
-
dc.description.sponsorship
Österr. Akademie der Wissenschaften
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dc.language.iso
en
-
dc.subject
high temperature superconductors
en
dc.subject
overcurrent pulses
en
dc.subject
hotspot formation
en
dc.title
Assessing the local electric field of coated conductors during overcurrent pulses
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
European Organization for Nuclear Research, Switzerland
-
dc.relation.grantno
0000000000
-
dc.relation.grantno
MG2021-3, MG2023-5
-
dc.type.category
Conference Presentation
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tuw.project.title
High-temperature superconducting materials for fusion magnets. The partner project is KKKÖ ME
-
tuw.project.title
Matching Grant zu EUROfusion ME
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tuw.researchTopic.id
M7
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.name
Special and Engineering Materials
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
50
-
tuw.researchTopic.value
50
-
tuw.publication.orgunit
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
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tuw.author.orcid
0009-0002-2910-5394
-
tuw.author.orcid
0009-0003-6212-0657
-
tuw.author.orcid
0000-0002-8720-9004
-
tuw.author.orcid
0000-0002-2959-1962
-
tuw.author.orcid
0000-0002-7160-7331
-
tuw.author.orcid
0000-0002-1705-4537
-
tuw.event.name
EUCAS 2025
en
tuw.event.startdate
22-09-2025
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tuw.event.enddate
25-09-2025
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tuw.event.online
On Site
-
tuw.event.type
Event for scientific audience
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tuw.event.place
Porto
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tuw.event.country
PT
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tuw.event.presenter
Hofmann, David
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
-
wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.grantfulltext
none
-
item.openairetype
conference paper not in proceedings
-
item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.cerifentitytype
Publications
-
item.fulltext
no Fulltext
-
crisitem.project.funder
European Commission
-
crisitem.project.funder
Österr. Akademie der Wissenschaften
-
crisitem.project.grantno
0000000000
-
crisitem.project.grantno
MG2021-3, MG2023-5
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
E141-06 - Forschungsbereich Low Temperature Physics and Superconductivity
-
crisitem.author.dept
European Organization for Nuclear Research, Switzerland
