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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 3: Radiofrequency
AKBP 3.6: Talk
Tuesday, March 16, 2021, 15:15–15:30, AKBPb
Status of the vertical bath cryostat at the S-DALINAC — •R. Grewe, M. Arnold, J. Conrad, S. Weih, and N. Pietralla — Institut für Kernphysik, TU Darmstadt
For sophisticated measurements of the intrinsic quality factor Q0 of superconducting radio frequency (srf) cavities the vertical bath cryostat (vtc) of the S-DALINAC[1] is used. To reduce uncertainties of the measurements, the vtc was subject to detailed upgrades. Particular attention was given to the the radio frequency (rf) input and output couplers. To match the input coupler to the cavity it is now possible to change the input coupling strength, which leads to reduced uncertainties of the measured Q0. The upgrade will be explained along with first measurement results of different srf cavities.
[1] N. Pietralla, Nuclear Physics News, Vol. 28, No. 2, 4 (2018).
Work supported by DFG through GRK 2128, by the state of Hesse through the LOEWE Research Cluster Nuclear Photonics and by BMBF through No. 05H18RDRB2.