A2

The Angle of the Analyzer/Kidney Aparatus

System Name: MonoTwoTheta

Type: Virtual

Brief Description

This device allows the MBTSlide to be controlled in terms of outgoing angle from the monochromator.

Restrictions

Devices which cannot be moved simultaneously with this device:

Other Restrictions:

None

Interactions

Devices which affect this device:

Devices which are affected by this device:

Whenever A2 is moved:

    MBTSlide is moved to the position calculated from the following formula:
        MBTSlide = -41.272cm * tan(A2 - 82.5deg)
    
    Ei's value is recalculated whenever A2 is moved using the following formula:
        Ei = 81.81 / ((2 * d-spacing * sin(A1)) ^ 2) or
        Ei = N/A if A1 is not within tolerance of A2 / 2