Optics Alignment (Required for Periodic Inspection or Installing X-Ray Tube)
MiniFlex 600: Benchtop X-ray Diffractometer
31
Optics Alignment (Required for Periodic
Inspection or Installing X-Ray Tube)
Perform optics alignment upon periodic inspection or when replacing the X-ray
tube. There are three ways to align the optics depending on the type of detector
used.
・
When using the SC for measurement
-> see "
・
When aligning the D/teX Ultra after the optics alignment using the SC
-> see "
Optics alignment (D/teX Ultra)
・
When using the D/teX Ultra for measurement
-> see “
Optics alignment (for D/teX only)
Optics alignment (for SC)
This section describes how to align optics using SC. This alignment is necessary
for the goniometer to perform measurement at the correct angle. Be sure to
execute this alignment if an X-ray tube is replaced. For measurements only by
D/teX Ultra, see “
Optics alignment (for D/teX only)
When 2 θ = 0º, the DS center, sample axis (θ axis) center, and RS center are
aligned in a straight line. The optics alignment is a procedure to raise or lower
the X-ray tube in order to move the focus onto this line.
Fig. 6.2.1 Optical Alignment
1
Start up MiniFlex 600 (see “
2
Open the sample chamber door, and set the included 0.3-mm Cu
absorber into the slit box of goniometer arm.
Make sure that nothing is mounted on the sample holder at this time. If a
sample is mounted, correct alignment cannot be done.
For system with D/teX Ultra (optional), note the followings:
①
If a beam stop is installed, remove it.
②
If a variable knife edge is installed, either remove it or mount the
retracting screw and keep the slider of the variable knife edge lifted
up.
Goniometer
X-ray tube
SC
RS
DS
Alignment
Sample axis
SS