The Printout of the Beam Diameters, Twiss Parameters and Phase Shifts

The beam envelopes and Twiss parameters at z=z_i as well as the phase shift $\psi_{i}$ between z₀ and z_i are printed for parallelogram-like and for elliptical phase-space areas by the command: 2 P(RINT) E(NVELOPE_VALUES) ; [example: P   E ;] The Twiss parameters are valid only for the phasespace defined by the P X and P Y commands. To print out the Twiss parameters for the phasespace defined by the T X and T Y commands, use the command: 2 P(RINT) T(WISSPARAMETERS) ; [example: P   T ;]