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ROTATE

An element that rotates the beam about the longitudinal axis.
Parallel capable? : yes
Parameter Name Units Type Default Description
TILT $RAD$ double 0.0 rotation about longitudinal axis
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





The sign convention for the TILT parameter is confusing on this element. In particular, a positive TILT rotates the beam counter-clockwise about the longitudinal axis. This is the opposite sense to rotations of elements, where a positive TILT rotates the element clockwise about the longitudinal axis.

Hence, if one wanted to rotate a series of elements by 0.1 rad, one could do the following:

ROT1: ROTATE,TILT=0.1
ROT2: ROTATE,TILT=-0.1
BL: line=(ROT1,...,ROT2)
The TILT value for ROT1 is the same (including the sign) as the individual TILT values one would give to all the elements represented by ....

Robert Soliday 2014-06-26