Title :
Fast ferrite tuner for the BNL synchrotron light source
Author :
Pivit, E. ; Hanna, S.M. ; Keane, J.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
A new type of ferrite tuner has been tested at the Brookhaven National Laboratory (BNL). The ferrite tuner uses garnet slabs partially filling a stripline. One of the important features of the tuner is that the ferrite is perpendicularly biased for operation above ferromagnetic resonance, thus reducing the magnetic losses. A unique design was adopted to achieve efficient cooling. The principle of operation of the tuner as well as preliminary results on tuning a 52 MHz cavity are reported. Optimized conditions under linear tunability of 80 kHz was demonstrated. The tuner´s losses and its effect on higher-order modes in the cavity are discussed.<>
Keywords :
cavity resonators; ferrite devices; particle sources; tuning; 52 MHz; BNL synchrotron light source; cavity tuning; design; ferrite tuner; garnet slabs; higher-order modes; tunability; Ferrites; Filling; Garnets; Laboratories; Light sources; Magnetic resonance; Slabs; Synchrotrons; Testing; Tuners;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164437
