3.12 doTransverseMotion

• type: Action command
• function: Does calculation of transverse CBM growth rates using monopole HOMs and bunch definitions currently defined. Of course, monopole HOMs and a bunch pattern must have been defined previously for this command to work. Either one of the optional commands sweepFrequency and randomizeHOMFrequencies may appear. If both appear, the last one takes precedence.

  If the optional command sweepFrequency is in effect, the SDDS file specified by the filename variable in that namelist command is opened at this point.

  If the optional command randomizeHOMFrequencies is in effect, the SDDS files specified by the filename frequencyListFilename variables in that namelist command are opened at this point.

• normalModes — If set to 1, then CBM complex frequencies are calculated, which is the present goal of the program.
• doLaplace — Not yet available. This solves the motion as a function of time with initial conditions using an inverse Laplace transform, as explained in [4].
• verticalDirection — If flag is set to 1, then the vertical tune and the vertical beta function at the RF cavities (see variables of ringParameters) are used in the calculation.
• horizontalDirection — If flag is set to 1, then the horizontal tune and the horizontal beta function at the RF cavities (see variables of ringParameters) are used in the calculation.
• eigenvectorFilename — Print the normal mode matrix used in the CBM frequencies calculation.
• CBMFrequencyFilename — SDDS file listing the complex frequencies of all the CBMs. Recommended naming conventions: <something>.CBMFreq