Accession Number : AD0707046

Title :   SUPERCONDUCTING Nb TM sub (010) MODE ELECTRON-BEAM WELDED CAVITIES,

Corporate Author : STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB

Personal Author(s) : Turneaure,J. P. ; Viet,Nguyen Tuong

Report Date : OCT 1969

Pagination or Media Count : 12

Abstract : A number of electron-beam welded TM sub (010) mode superconducting Nb cavities were fabricated and tested at 8.6 GHz and 1.25 degrees K. These cavities were electron beam (EB) welded to avoid the difficulties of machining cavities without joints and to determine the usefulness of EB welding as a fabrication technique. Measurements demonstrate that high fields and unloaded Q's (Q sub 0)'s can be obtained with these EB welded cavities. Not only has a useful fabrication technique been demonstrated, but significant increases in the fields and (Q sub 0)'s, compared with earlier measurements, have been observed. (Author)

Descriptors :   (*CAVITY RESONATORS, MANUFACTURING), (*SUPERCONDUCTORS, NIOBIUM), X BAND, CRYOGENICS

Subject Categories : Electrical and Electronic Equipment
      Fabrication Metallurgy
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE