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RAMPP

A momentum-ramping element that changes the central momentum according to an SDDS- format file of the momentum factor vs time in seconds.
Parallel capable? : yes
Parameter Name Units Type Default Description
WAVEFORM   STRING NULL $<$filename$>$=$<$x$>$+$<$y$>$ form specification of input file giving momentum factor vs time
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







Explanation of $<$filename$>$=$<$x$>$+$<$y$>$ format: Several elements in elegant make use of data from external files to provide input waveforms. The external files are SDDS files, which may have many columns. In order to provide a convenient way to specify both the filename and the columns to use, we frequently employ $<$filename$>$=$<$x$>$+$<$y$>$ format for the parameter value. For example, if the parameter value is waveform.sdds=t+A, then it means that columns t and A will be taken from file waveform.sdds. The first column is always the independent variable (e.g., time, position, or frequency), while the second column is the dependent quantity.


next up previous
Next: RAMPRF Up: Element Dictionary Previous: QUFRINGE
Robert Soliday 2014-03-21