J.A. Woollam M-2000, Hardware Manual

Page: 67 / 178

M-2000® Hardware Manual ©2023 J.A. Woollam Co. 67
shows the basic components of the M-2000 system, and this naming convention
will be followed throughout these instructions.
In the straight-through position (angle = 90°), the white light beam should be
centered on both the Receiver Unit aperture and the 4-quadrant alignment
detector that is located inside the Receiver Unit. This alignment is easily tested,
using the following instructions, which also describes correction to the
alignment. All operations will be performed from within the Hardware tab of
CompleteEASE.
Note: A System Alignment should only be performed when the instrument
is first delivered, after mounting the Light Source and Receiver
components onto a base or chamber, or if the integrity of the
alignment is in question.
Note: Alignment of the Light Source and Receiver tilt stages on the base
should only be adjusted when the base is in the straight-through
position. Any adjustment screw should never need to be turned
more than ½-1 full turn. If so, it is likely something is not
mounted/aligned properly; check previous steps to be sure they
were done correctly.
Note: Optional focusing optics must be removed before continuing (if
attached).
Figure 4-25. Nomenclature.
Source Unit
Source
Tilt stage
Receiver
Tilt stage
Receiver Unit
Sample
stage
Vacuum
switch
Align Unit