X ray facilities - VXRD
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| Description |
Versatile x-ray diffractometer (VXRD) can be used for the study of structure and morphology of single & composite thin films and multilayers containing crystalline, amorphous or both. |
| Manufacturer |
Bruker AXS, Germany [http://www.bruker-axs.de] |
| Model |
D8 Discover |
| Installation place & date |
Room # 126 & May, 2003 |
| Source |
Copper sealed tube 2.2 kW power & 0.04 x 12 mm2 line focus |
| Goniometer |
2-circle (q-2q) |
| Sample stage |
¼-circle Eulerian Cradle
2-circlular: c (97 deg) and f (360 deg)
3-translational: X & Y (150 mm); Z (13 mm)
5’’ vacuum chuck
Knife edge collimator
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| Optics |
Ni/C Göbel mirror: to select and enhance CuKa radiation
Optional:
4-bounce Ge 022 monochromator
2-bounce Ge 022 channel-cut analyser
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| Detector |
NaI scintillation point detector
Specification:
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| Dynamic range |
107 |
| Count rate |
105s-1 |
| Noise rate |
2-10s-1 |
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Typical applications :
- X-ray reflectivity and diffuse scattering for electron density profiling and determination of height-height correlation
- High angle high resolution diffraction for strain and lattice mismatch analysis
- Powder diffraction for phase and size analysis
HI-STAR area detector
Specification:
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| Field of view |
11.5 cm diameter |
| Pixel size |
105 µm |
| Dynamic range |
>106 |
| Count rate |
106 s-1 (200 cps/pixel) |
| Noise rate |
10-5 cps/pixel |
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Typical applications :
- Microdiffraction Analysis
- Stress and Texture Analysis
- Phase Identification
- Small Angle Scattering including GISAXS for determination of size and distribution of nanoparticles in liquid or solid matrix |
| Chiller |
ERL2000 cooling water unit |
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Last Updated on Thursday, 31 March 2022 18:19
