A map of Bx and By vs x and y.
Parallel capable? : yes
GPU capable? : no
Back-tracking capable? : no
factor by which to multiply field
integration method (runge-kutta, bulirsch-stoer, modified-midpoint, two-pass modified-midpoint, leap-frog, non-adaptive runge-kutta
name of file containing columns (x, y, Fx, Fy) giving normalized field (Fx, Fy) vs (x, y)
rpn expression for Fx in terms of x and y
rpn expression for Fy in terms of x and y
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
This element simulates transport through a transverse magnetic field specified as a field map. It does this by simply integrating the Lorentz force equation in cartesian coordinates. It does not incorporate changes in the design trajectory resulting from the fields. I.e., if you input a dipole field, it is interpreted as a steering element.
The field map file is an SDDS file with the following columns:
The field map file must contain a rectangular grid of points, equispaced (separately) in x and y. There should be no missing values in the grid (this is not checked by elegant). In addition, the x values must vary fastest as the values are accessed in row order. To ensure that this is the case, use the following command on the field file:
sddssort fieldFile -column=y,incr -column=x,incr