Bruker D8 Series User Manual

E. Customer Acceptance Test Protocol
DOC-M88-EXX157_V17_04.2019 65 / 96
Part II: Angular Accuracy, Instrument Response and Resolution (D8Series)
Anode: Cu Bragg-Brentano Geometry
Angular Accuracy: Difference Reference Position corr Instrument Response: I
rel
Instrument
Resolution
Maximum allowed 2θ deviation depends on height Maximum allowed intensity deviation for point detectors ± 10% FWHM
obs
< FWHM
max
2θ
obs
[°]
Differ-
ence
2θ
obs
Reference
Position
corr
Difference
Reference
Position
corr
2θ
exp
1)
[°]
I
obs
I
min
I
exp
1)
I
max
FWHM
obs
[°]
FWHM
max
2)
[°]
25.575 21.49 23.88 26.27
35.148 90.00 100.00 110.00
88.989 11.06 12.29 13.52
127.670 13.37 14.85 16.34
Reference Position corr
½(Difference
max
+Difference
min
)
Detector
3)
Current Reference Position Shift
2-Theta
3)
Corrected Reference Position
(Current Reference Position - Reference
Position corr)
Height Maximum allowed shift 2θ for specified accuracy of:
N: scaling factor; For details cf. chapter
Reference Values [}15]
Vertical 150 0,02° ± 0,01°
obs: observed 214 0,03° ± 0,015°
exp: expected 258 0.04° ± 0,02°
corr: corrected Horizontal 214 0,02° ± 0,01°
rel: relative 258 0,02° ± 0,01°
1)
see table 3.1. For linear detector configurations intensities might be outside allowed deviations for point detectors due to reasons explained in chapter
Reference Values [}15];
2)
see table 3.3;
3)
mark applicable: detector in case of Theta/Theta and 2-Theta in case of Theta/2Theta;
Depending on specific measurement setups, individual reflections may not be measurable. Then measurements must be restricted to accessible reflections.

Bruker D8 Series Specifications

General

Brand	Bruker
Model	D8 Series
Category	Laboratory Equipment
Language	English