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11
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ME12044A
6.5
Example of Measurement
The Looper is supplied with copper foil (5
µ
in thickness) as the test sample for use in the adjustment
and inspection of the optical system. The specific measurement procedure using the copper foil is
described below.
6.5.1
Installing the monochromator crystal
The equipment is supplied as standard with a Ge (220) crystal. Install this crystal in the
monochromator. It can be plugged in and retained by a magnet. If the current setting in the control
software is not Ge (220), choose Ge (220) after selecting Setup
→
Crystal.
Figure 6.1 Ge (220) (D030328A03)
6.5.2
Moving the goniometer
Move the goniometer to 9200 eV. Normally, the crystal adjustment of XAFS is performed at an
energy point that is approximately 200 eV higher than the energy of the absorption edge of the
element to be measured. As the energy of the K-absorption edge of Cu is 8984 eV, make the
adjustment with the goniometer at 9200 eV. Select Manual
→
Goniometer, enter 9200 in the
Energy field, and click on [OK].
Figure 6.2 Goniometer Setup Screen
Standard accessory
Ge (220)
