Author/Authors :
Arbet-Engels، نويسنده , , V. and Benvenuti، نويسنده , , C. and Calatroni، نويسنده , , S. and Darriulat، نويسنده , , P. and Peck، نويسنده , , Sônia M.A. and Valente، نويسنده , , A.-M. and Van’t Hof، نويسنده , , C.A.، نويسنده ,
Abstract :
Evidence is presented for niobium film cavities performing as well as niobium bulk cavities, at variance with a widespread belief that their much smaller grain size should be a fundamental limitation preventing high quality factors to be maintained over a wide range of accelerating fields. By comparing the relative merits of the bulk and film technologies, a strong case is presented in favour of the latter.
Keywords :
High-energy accelerators , Superconducting rf cavities , Niobium films , Residual resistance
