| Parameter Name | 
Units | 
Type | 
Default | 
Description | 
| RA | 
  | 
double | 
0.0 | 
shunt impedance | 
| RS | 
  | 
double | 
0.0 | 
shunt impedance (Ra=2*Rs) | 
| Q | 
  | 
double | 
0.0 | 
cavity Q | 
| FREQ | 
  | 
double | 
0.0 | 
frequency | 
| CHARGE | 
  | 
double | 
0.0 | 
beam charge (or use CHARGE element) | 
| INITIAL_V | 
  | 
double | 
0.0 | 
initial voltage | 
| INITIAL_PHASE | 
  | 
double | 
0.0 | 
initial phase | 
| INITIAL_T | 
  | 
double | 
0.0 | 
time at which INITIAL_V and INITIAL_PHASE held | 
| BETA | 
  | 
double | 
0.0 | 
normalized load impedance | 
| BIN_SIZE | 
  | 
double | 
0.0 | 
bin size for current histogram (use 0 for autosize) | 
| N_BINS | 
  | 
long | 
20 | 
number of bins for current histogram | 
| PRELOAD | 
  | 
long | 
0 | 
preload cavity with steady-state field | 
| PRELOAD_FACTOR | 
  | 
double | 
1 | 
multiply preloaded field by this value | 
| RIGID_UNTIL_PASS | 
  | 
long | 
0 | 
don't affect the beam until this pass | 
| SAMPLE_INTERVAL | 
  | 
long | 
1 | 
passes between output to RECORD file | 
| RECORD | 
  | 
STRING | 
NULL | 
output file for cavity fields | 
| SINGLE_PASS | 
  | 
long | 
0 | 
if nonzero, don't accumulate field from pass to pass | 
| PASS_INTERVAL | 
  | 
long | 
1 | 
interval in passes at which to apply PASS_INTERVAL times the field (may increase speed) |