Fast ferrite tuner for the BNL synchrotron light source

Conference · Mon Dec 31 23:00:00 EST 1990

OSTI ID:5549505

Pivit, E ^[1]; Hanna, S M; Keane, J ^[2]

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1. ANT-Nachrichtentechnik GmbH, Backnang (Germany, F.R.)
2. Brookhaven National Lab., Upton, NY (USA)

A new type of ferrite tuner has been tested at the 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 FMR, thus reducing the magnetic losses. A unique design was adopted to achieve the efficient cooling. The principle of operation of the tuner as well as our preliminary results on tuning a 52 MHz cavity are reported. Optimized conditions under which we demonstrated linear tunability of 80 KHz are described. The tuner's losses and its effect on higher-order modes in the cavity are discussed. 2 refs., 8 figs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5549505
• Report Number(s): BNL-46182; CONF-910505--166; ON: DE91013533
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
ALLOYS
CARBON ADDITIONS
CAVITY RESONATORS
DESIGN
ELECTRONIC EQUIPMENT
EQUIPMENT
FERRITE
IRON ALLOYS
MAGNETIC FIELDS
RADIATION SOURCES
RESONATORS
RF SYSTEMS
STORAGE RINGS
SYNCHROTRON RADIATION SOURCES
TESTING
TUNING