Improved field stability in RFQ structures with vane-coupling rings

Conference · Tue Mar 01 00:00:00 EST 1983

OSTI ID:6053261

Schneider, H R; Lancaster, H

The small apertures common in many RFQ linac designs lead to tuning difficulties, primarily because asymmetries in the quadrant fields can arise as a result of small non-uniformities in the vane-to-vane capacitances. Sensitivity to such capacitance or other tuning variation in the quadrants is greatly reduced by the introduction of pairs of vane-coupling rings that provide periodic electrical connections between diametrically opposite vanes. Results of measurements on a cold model RFQ structure with and without vane-coupling rings are presented. The number of rings required for field stabilization and the effect of rings on mode frequencies are discussed.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6053261
• Report Number(s): LBL-15140; CONF-830311-120; ON: DE83011686
• Resource Relation: Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
QUADRUPOLE LINACS
ELECTRIC FIELDS
CAVITY RESONATORS
COUPLING
ELECTRODES
STABILIZATION
TUNING
ACCELERATORS
ELECTRONIC EQUIPMENT
EQUIPMENT
LINEAR ACCELERATORS
RESONATORS
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics