Superconducting accelerating cavity that is manufactured from copper / niobium composite pipe material and its manufacturing method, and composite tubing that was fabricated by electroforming copper electrodeposits

摘要

In order to produce industrially advantageously the material tube composite / niobium cast copper electroforming are firmly bonded to the niobium and steel thin-walled tube material and layer electroformed copper power, and one or both of the inner and outer circumference and the outer circumference of the niobium thin-walled tube material by coating a nickel thin film on the peripheral surface of the, by electroforming, was coated with copper on the surface of the nickel thin film is annealed subsequently, to produce a material pipe composite / niobium electroforming copper electrodeposits.