M88-E01072 2 - 1
2. Introduction
This manual covers installation and basic opera-
tion of the VÅNTEC-1 detector.
The VÅNTEC-1 detector features the fastest
simultaneous recording of X-ray diffraction pat-
terns within a wide 2-theta angular range. When
performing XRD experiments, the detector can
be used either in fixed PSD mode (snapshot) or
in locked coupled mode (similar to using a zero-
dimensional scintillation counter). For powder
XRD, the VÅNTEC-1 offers a reduction of the
overall measurement time up to a factor of 100
in comparison to measurements executed with
the commonly used zero-dimensional detector
setup, providing a similar angular resolution.
Furthermore, the fixed 2-theta mode allows
measurement times down to 100 msec with
about 12° 2-theta coverage for executing in-situ
investigations like recording an “X-ray movie” of
kinetic processes.
The active area of the detector is 50 mm by 16
mm (along the scattering plane respectively per-
pendicular). The simultaneously-recorded angu-
lar range, as well as the achievable angular
resolution, are influenced by the sample proper-
ties, the selected measurement circle diameter,
the used slit openings and the applied X-ray
wavelength. Generally, the para-focusing
Bragg-Brentano geometry and a larger mea-
surement circle diameter result in a better angu-
lar resolution.
The VÅNTEC-1 detector is based on the pat-
ented Mikrogap
TM
technology. It offers all the
benefits common with gaseous detectors, such
as high signal amplification resulting in high
peak-to-background ratio, high sensitivity for a
wide range of X-ray wavelengths, and a good
energy resolution. The Mikrogap
TM
technology
allows operation at count rates much higher
than those typically possible with gaseous
detectors while maintaining all benefits. The
To Next Page
Loading...
Need help?
General
