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000642125 037__ $$aPUBDB-2025-05357
000642125 041__ $$aEnglish
000642125 1001_ $$0P:(DE-H253)PIP1114917$$aKahl, Laurenz Raphael$$b0$$eCorresponding author$$gmale
000642125 245__ $$aEffect of the cooldown velocity on the performance of superconducting cavities$$f2025-05-12 - 2025-11-12
000642125 260__ $$c2025
000642125 300__ $$a41
000642125 3367_ $$2DRIVER$$abachelorThesis
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000642125 3367_ $$2BibTeX$$aMASTERSTHESIS
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000642125 502__ $$aBachelorarbeit, University of Hamburg, 2025$$bBachelorarbeit$$cUniversity of Hamburg$$d2025
000642125 520__ $$aThe medium temperature heat treatment of superconducting radio frequency cavities is investigated to asses their use in an upgrade of the European X-ray Free ElectronLaser. For the medium temperature heat treatment, which alters the cavity’s surface, the question is, which influences on the performance of cavities do exist. The objectiveis, the investigation into the effects of the cooldown velocity on the cavity performance. To investigate whether this influence exists, an analytical tool, has been developed, toacquire the cooldown velocity. Furthermore, with the use of this tool the investigation of this dependency was started. The conclusion of the analysis is that the quality factor andresidual resistance are depended on the cooldown velocity. The accelerating gradient and quench limits of the cavities seem to be unaffected. The strength of this degradation of thecavities quality factor is observed to be lower than 15%. This could allow the use of these cavities even if this degradation is unavoidable during the cooldown of the cryomodulesat the European XFEL.
000642125 536__ $$0G:(DE-HGF)POF4-621$$a621 - Accelerator Research and Development (POF4-621)$$cPOF4-621$$fPOF IV$$x0
000642125 693__ $$0EXP:(DE-H253)SRF-RD-20221201$$5EXP:(DE-H253)SRF-RD-20221201$$eSuperconductivity Radio Frequency Research and Development$$x0
000642125 7001_ $$0P:(DE-H253)PIP1013197$$aWiencek, Mateusz$$b1$$eThesis advisor$$udesy
000642125 7001_ $$0P:(DE-H253)PIP1032393$$aHillert, Wolfgang$$b2$$eThesis advisor
000642125 8564_ $$uhttps://bib-pubdb1.desy.de/record/642125/files/Bachelorarbeit_Laurenz_Kahl_Nov2025_Effect_of_the_cooldown_velocity_on_the_performance_of_superconducting_cavities.pdf$$yRestricted
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000642125 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1013197$$aDeutsches Elektronen-Synchrotron$$b1$$kDESY
000642125 9101_ $$0I:(DE-H253)_CFEL-20120731$$6P:(DE-H253)PIP1032393$$aCentre for Free-Electron Laser Science$$b2$$kCFEL
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000642125 9141_ $$y2025
000642125 920__ $$lyes
000642125 9201_ $$0I:(DE-H253)MSL-20170609$$kMSL$$lSupraleitende Beschleuniger Technologie$$x0
000642125 980__ $$abachelor
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