PISCES II : 2.5-D RF CAVITY CODE, AN EXTENSION OF SUPERFISH
Accelerator Laboratory, Nuclear Science Research Facility
Institute for Chemical Research, Kyoto University
Gokanosho Uji, Kyoto 611, JAPAN
The RF cavity code PISCES II can evaluate all the eigenfrequencies and fields
for arbitrarily shaped axially symmetric RF cavities. The solutions include
symmetric (m=0) and asymmetric modes (m>0) with 2.5-D technique of assuming the
sin mq and cos mq dependencies. Using Finite Element Method with Nedelec
elements, the electric or magnetic components ( (Eq,Er,Ez) or (Hq,Hr,Hz) ) are
calculated[ ]. The resulted eigenvalue system has many zero-eigenvalue
solutions, which can be filtered out by using zero-filter technique from
the set of solutions. The eigensolutions of the specified number are obtained
simultaneously from non-zero lowest frequency.
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