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TRFMODE

A simulation of a beam-driven TM dipole mode of an RF cavity.
Parallel capable? : yes
Parameter Name Units Type Default Description
RA $Ohm/m$ double 0.0 shunt impedance
RS $Ohm/m$ double 0.0 shunt impedance (Ra=2*Rs)
Q   double 0.0 cavity Q
FREQ $Hz$ double 0.0 frequency
CHARGE $C$ double 0.0 beam charge (or use CHARGE element)
BETA   double 0.0 normalized load impedance
BIN_SIZE $S$ double 0.0 bin size for current histogram (use 0 for autosize)
N_BINS   long 20 number of bins for current histogram
PLANE   STRING both x, y, or both
SAMPLE_INTERVAL   long 1 passes between output to RECORD file
PER_PARTICLE_OUTPUT   long 0 If non-zero, then in BINLESS mode, provides per-particle output of RECORD data.
RECORD   STRING NULL output file for cavity data
SINGLE_PASS   long 0 if nonzero, don't accumulate field from pass to pass
RIGID_UNTIL_PASS   long 0 don't affect the beam until this pass
DX $M$ double 0.0 misalignment
DY $M$ double 0.0 misalignment
XFACTOR   double 1 factor by which to multiply shunt impedances
YFACTOR   double 1 factor by which to multiply shunt impedances
RAMP_PASSES   long 0 Number of passes over which to linearly ramp up the impedance to full strength.
BINLESS   long 0 If nonzero, use algorithm that doesn't requiring binning. Best for few particles, widely spaced.

next up previous
Next: TRWAKE Up: Element Dictionary Previous: TRCOUNT
Robert Soliday 2007-04-02