D2 PHASER User Manual
DOC-M88-EXX141 V5 – 01.2015 19
to set 2
to a strong diffraction peak, e.g. 2 ≈ 35,129°. Then start the program SPECTRA for
measuring the spectrum of the corundum sample and define a ROI by holding down the SHIFT key
while drawing a range in the graphics window with the left mouse-button (for details, refer to the
SPECTRA User Manual), Use Menu
Device
PHASER to display old and new values of the ROI
(fig 68). For a good signal-to-noise ratio, the width of the ROI should not excessively exceed 300eV. If
desired, adjust the values and safe settings with Set Data.
Avoiding Collisions with the D2 PHASER Goniometer
Problem or Error Pattern
In case of removing the direct beam stop absorber module at the sample holder of the D2 PHASER, it
may happen that the fixing screws (fig. 134) are not totally removed or not tightened anymore. As a
consequence the screw could cause a collision with the secondary slit system of scintillation counter
or XFLASH installations (fig. 133). This will lead to a misalignment of the secondary slit system and
needs to be realigned in factory.
Solution
In case of removing the direct beam stop due to alignment procedures (glass slit alignment), you need
to remove the fixing screws completely. After finishing the alignment procedure, mount the direct
beam stop again to avoid damage of the detectors.
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