JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{saribal:srf2023-mopmb017, author = {C. Saribal and W. Hillert and C. Martens and M. Wenskat}, title = {{Development of a Thermal Conductance Instrument for Niobium at Cryogenic Temperatures}}, % booktitle = {Proc. SRF'23}, booktitle = {Proc. 21th Int. Conf. RF Supercond. (SRF'23)}, pages = {109--113}, eid = {MOPMB017}, language = {english}, keywords = {cavity, niobium, ECR, cryogenics, operation}, venue = {Grand Rapids, MI, USA}, series = {International Conference on RF Superconductivity}, number = {21}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {09}, year = {2023}, issn = {2673-5504}, isbn = {978-3-95450-234-9}, doi = {10.18429/JACoW-SRF2023-MOPMB017}, url = {https://jacow.org/srf2023/papers/mopmb017.pdf}, abstract = {{Particle accelerators form an important tool in a variety of research fields. In an effort to reduce operation costs while maintaining high energies, their accelerating structures are steadily improved towards higher accelerating fields and lower RF losses. Stable operation of such a cavity generally requires Joule-heating, generated in its walls, to be conducted to an outer helium bath. Therefore, it is of interest to experimentally evaluate how present and future cavity treatments affect thermal characteristics. We present an instrument for measuring the thermal performance of SRF cavity materials at cryogenic temperatures. Pairs of niobium disks are placed inside of a liquid helium bath and a temperature gradient is generated across them to obtain total thermal resistance for temperatures below 2 Kelvin. To get an idea of the instruments sensitivity and how standard cavity treatments influence thermal resistance, samples are tested post fabrication, polishing and 800 °C baking. The first tests show the commissioning of our newly set up system and if it is feasible to observe relevant changes and evaluate new and promising cavity treatments such as SIS structures.}}, }