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An equivalent circuit model of the general 3-dimensional RFQ

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5508071
An equivalent circuit model has been developed, based on the description of the RFQ as a terminated waveguide. The RFQ is modeled as a length of inductively loaded square waveguide operating in ''TE/sub 10//sup -/ and TE/sub 11//sup -/ like'' modes in the dipole and quadrupole configurations respectively. This is described by 6 coupled first order differential equations using distributed values for the four quadrant shunt admittances and series impedances. The end terminations are represented by lumped terminating reactances. The first few orders of both dipole and quadrupole modes are described by the model. By relating the equivalent circuit values to physical dimensions, the effects on frequency and field distributions of vane movement, tube distortion, individual end tuner movement and vane strapping were determined. Agreement with measured properties is reasonable, and some new insights on RFQ operation have been gained.
Research Organization:
Atomic Energy of Canada Limited, Research Company, Chalk River Nuclear Laboratories, Chalk River, Ontario KOJ 1JO
OSTI ID:
5508071
Report Number(s):
CONF-830311-
Conference Information:
Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-30:4
Country of Publication:
United States
Language:
English