MiniKappa Goniometer Head  videos

The Minikappa Head is mounted on top of the centring table of a MD2 Diffractometer.

MiniKappa picture

 A one micron needle is mounted at the sample position.
The videos show  the On Beam axis Video microscope pane of the graphical interface of the MD2 GUI (PC screen)
They show the stability of the "sample" in the beam (SOC) when Omega rotates; Kappa and Phi are fixed. (Real time videos)

Video 1:  Download (2.5 MB)
Chi = 0, Phi fixed, Omega 90 deg/s
Grid 10 µm/div; vertical arrow 4 µm

Video 2:  Download (3.5MB)
Chi = 48 deg, Phi fixed, Omega 20 deg/s ... 90 deg/s
Grid 10 µm/div; horizontal arrow 5 µm