A simple beamline setup consisting of a single focusing mirror,
a monochromator, and a four-circle goniometer at the sample stage.
Example: MAXII_711.instr R=-100 tth=28 dphi=30 Detector: detector_I=1.3281973e-10
Parameters in boldface are required;
the others are optional.
Radius of curvature of the focusing mirror. N.b. a negative curvature simply means the mirror curves towards negative x
Set angle of incidence of the focusing mirror
Set angle of incidence of Monochromator crystal.
2nd rotation of four circle, around X.
1st rotation of four circle, around Y.
3rd rotation of four circle, around Y'.
4th rotation of four circle, i.e. detector arm. Around Y.