This rectangular pyrolytic graphite filter uses an analytical model
with linear interpolation on the neutron wavelength
This type of filter is e.g. used to supress higher harmonics, such as
the 1.2 AA contribution to the 2.4 AA obtained by a highly oriented
pyrolytic graphite (HOPG) monochromator.
Example: Filter_graphite(xmin=-.05, xmax=.05, ymin=-.05, ymax=.05, length=1.0)
WARNING: This is a contributed Component.
Parameters in boldface are required;
the others are optional.