Title :
20 MV/m accelerating gradient with heat treatment of a six cell, 1.5 GHz cavity for TESLA
Author :
Kirchgessner, J. ; Barnes, P. ; Hartung, W. ; Hiller, M. ; Moffat, D. ; Padamsee, H. ; Rubin, D. ; Saraniti, D. ; Sears, J. ; Shu, Q.S. ; Tigner, M.
Author_Institution :
Lab. of Nucl. Studies, Cornell Univ., Ithaca, NY, USA
Abstract :
In order to use superconducting RF accelerating structures in the construction of a high energy linear collider, the structures must be designed to meet specific goals. These include low peak surface electric fields, good higher order mode power extraction from the ends, maximum accelerating gradient and, above all, low cost per unit accelerating voltage. Such a structure has been designed, manufactured and tested. Preliminary results have been reported. The cavity was then mechanically braced with Niobium braces and then heat treated. The final test gave 20 MV/m accelerating field. Details of some difficulties encountered will also be presented at this time
Keywords :
beam handling equipment; cavity resonators; heat treatment; 1.5 GHz; 20 MV/m accelerating gradient; Nb; Nb braces; TESLA; cost; heat treatment; high energy linear collider; higher order mode power extraction; low peak surface electric fields; six cell 1.5 GHz cavity; superconducting RF accelerating structures; Acceleration; Costs; Heat treatment; Life estimation; Manufacturing; Niobium; Radio frequency; Surface treatment; Testing; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308729
