论文信息 - Pulse Laser Annealing of Niobium Film on Copper for SRF Cavities

Pulse Laser Annealing of Niobium Film on Copper for SRF Cavities

Thin film cavities were proposed as the most promising next generation superconducting cavities. The challenges are improving the surface superconducting performance and reducing defects of the coating film, which can be greatly solved by laser annealing. Laser annealing system has been set up in Peking University, and experiments with niobium thin film sample have been carried out. Superconducting performance and other properties of Nb/Cu samples before and after annealing were compared. Recrystallization happened and surface structure improved a lot according to the results.

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