RCOL

A rectangular collimator.

Parameter Name	Units	Type	Default	Description
L	$M$	double	0.0	length
X_MAX	$M$	double	0.0	half-width in x
Y_MAX	$M$	double	0.0	half-width in y
DX	$M$	double	0.0	misalignment
DY	$M$	double	0.0	misalignment