Speaker
Description
At LNL the R&D on Niobium on Copper cavities coating film technology is of great importance since the development of Quarter Wave Resonators of the ALPI accelerator. The 6 GHz elliptical cavities represent a low-cost research that is a key step to go through from the prototypes into the real cavities in the framework of the accelerator technology. Thick films deposited in long pulse DCMS deposition mode onto 6 GHz cooper cavities have demonstrated the mitigation of the Q-slope at low accelerating fields. Nb thick films (~40 microns) show the possibility reproduce the bulk niobium superconducting properties. In this talk, the current status of the thick films onto 6 GHz cavities at LNL will be shown, including RF tests, morphological characterizations and the future studies.
