Title :
Pi-mode structures - results and implications for operation
Author :
Schriber, Stan O.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
Pi-mode structures are the type chosen for high-energy synchrotrons and for medium- and high-beta accelerating superconducting structures. A coupled-circuit analysis, allowing for errors in cell frequencies and cell coupling constants, has been used to determine relative on-axis fields between cells, operating frequencies, end-cell tuning, relative on-axis field phase shifts and field tilts when operated off resonance. Formulae are given for the above information as well as specific examples to show sensitivities and machining/assembly/control tolerances
Keywords :
accelerator cavities; superconducting cavity resonators; synchrotrons; cell coupling constants; cell frequencies; coupled-circuit analysis; end-cell tuning; field tilts; high-beta accelerating superconducting structures; high-energy synchrotrons; medium-beta accelerating superconducting structures; operating frequencies; pi-mode structures; relative on-axis field phase shifts; Acceleration; Assembly; Equations; Error analysis; Frequency; Laboratories; Machining; Resonance; Synchrotrons; Tuning;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986597
