|PERIOD||double||0.0||period of corrugations ( radius recommended)|
|GAP||double||0.0||gap in corrugations ( period required)|
|DEPTH||double||0.0||depth of corrugations ( radius, period recommended)|
|DT||double||0.0||maximum time duration of wake (0 for autoscale)|
|TMAX||double||0.0||maximum time duration of wake (0 for autoscale)|
||number of bins for charge histogram (0 for autoscale)|
||Use Savitzky-Golay filter to smooth current histogram?|
|SG_HALFWIDTH||long||4||Savitzky-Golay filter half-width for smoothing|
|SG_ORDER||long||1||Savitzky-Golay filter order for smoothing|
||change central momentum?|
||allow beam longer than wake data?|
||Number of passes over which to linearly ramp up the wake to full strength.|
|GROUP||string||NULL||Optionally used to assign an element to a group, with a user-defined name. Group names will appear in the parameter output file in the column ElementGroup|
This element implements the longitudinal wake for a corrugated pipe using a model by K. Bane . The method used is identical to that for the
The only difference is that instead of providing a file to specify the
wake, one specifies the parameters of Bane's model, as described above.
Setting the N_BINS and TMAX paramaters to 0 is recommended. This results in auto-scaling of the number of bins and the time spacing of the wake to ensure sufficient length to cover the beam and a sufficiently fine time step to resolve the oscillations in the wake.
WAKE, the default degree of smoothing (SG_HALFWIDTH=4) may be excessive.
It is suggested that users vary this parameter to verify that results
are reliable if smoothing is employed (SMOOTHING=1).