RFCW

A combination of RFCA, WAKE, TRWAKE, and LSCDRIFT.

Parameter Name	Units	Type	Default	Description
L	$M$	double	0.0	length
CELL_LENGTH	$M$	double	0.0	cell length (used to scale wakes, which are assumed to be given for a cell)
VOLT	$V$	double	0.0	voltage
PHASE	$DEG$	double	0.0	phase
FREQ	$Hz$	double	500000000	frequency
Q		double	0.0	cavity Q (for cavity that charges up to voltage from 0)
PHASE_REFERENCE		long	0	phase reference number (to link with other time-dependent elements)
CHANGE_P0		long	0	does element change central momentum?
CHANGE_T		long	0	not recommended
FIDUCIAL		STRING	NULL	mode for determining fiducial arrival time (light, tmean, first, pmaximum)
END1_FOCUS		long	0	include focusing at entrance?
END2_FOCUS		long	0	include focusing at exit?
BODY_FOCUS_MODEL		STRING	NULL	None (default) or SRS (simplified Rosenzweig/Serafini for standing wave)
N_KICKS		long	1	number of kicks to use. Set to zero for matrix method.
WAKEFILE		STRING	NULL	name of file containing Green functions
ZWAKEFILE		STRING	NULL	if WAKEFILE=NULL, optional name of file containing longitudinal Green function
TRWAKEFILE		STRING	NULL	if WAKEFILE=NULL, optional name of file containing transverse Green functions
TCOLUMN		STRING	NULL	column containing time data
WXCOLUMN		STRING	NULL	column containing x Green function

A combination of RFCA, WAKE, TRWAKE, and LSCDRIFT.

Parameter Name	Units	Type	Default	Description
WYCOLUMN		STRING	NULL	column containing y Green function
WZCOLUMN		STRING	NULL	column containing longitudinal Green function
N_BINS		long	0	number of bins for current histogram
INTERPOLATE		long	0	interpolate wake?
SMOOTHING		long	0	smooth current histogram?
SG_HALFWIDTH		long	4	Savitzky-Golay filter half-width for smoothing
SG_ORDER		long	1	Savitzky-Golay filter order for smoothing
DX	$M$	double	0.0	misalignment
DY	$M$	double	0.0	misalignment
LINEARIZE		long	0	Linearize phase dependence?
LSC		long	0	Include longitudinal space-charge impedance?
LSC_BINS		long	1025	Number of bins for LSC calculations
LSC_INTERPOLATE		long	1	Interpolate computed LSC wake?
LSC_HIGH_FREQUENCY_CUTOFF0		double	-1	Spatial frequency at which smoothing filter begins for LSC. If not positive, no frequency filter smoothing is done. Frequency is in units of Nyquist (0.5/binsize).
LSC_HIGH_FREQUENCY_CUTOFF1		double	-1	Spatial frequency at which smoothing filter is 0 for LSC. If not given, defaults to HIGH_FREQUENCY_CUTOFF0.
LSC_RADIUS_FACTOR		double	1.7	LSC radius is (Sx+Sy)/2*RADIUS_FACTOR
WAKES_AT_END		long	0	Do wake kicks at end of segment (for backward compatibility)?

This element is a combination of the RFCA, WAKE, and TRWAKE elements. As such, it provides combined simulation of an rf cavity with longitudinal and transverse wakes.

For the wakes, the input files and their interpretation are identical to WAKE and TRWAKE, except that the transverse and longitudinal wakes are interpreted as the wakes for a single cell of length given by the CELL_LENGTH parameter.

Users should read the entries for WAKE, TRWAKE, and RFCA for more details on this element.