Speaker
Description
Highly performing SRF cavities are of general importance for multiple future projects and can only be realized in international collaborations. One crucial issue is standardization of parameters during chemical etching, heat treatment, and vertical tests. We have identified tiny differences in locally defined parameters in the laboratories. In parallel to collaborative initiative within European laboratories as well as between American and French institutions, we consolidate the collaboration between France and Japan. We are currently working on a 1-cell 1.3 GHz cavity to systematically compare the vacuum furnaces in IJCLab and KEK as well as vertical tests in CEA and KEK. Our studies include mid-T baking, high-temperature annealing, low-temperature baking, and the magnetic field sensitivity. In this contribution, we summarize the global scope of the collaboration, comparison of furnaces, and vertical tests results.
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