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Principle
When polycrystalline samples are irradiated with X-rays a characteristic diffraction pattern results. These Debye-Scherrer reflections are photographed and then evaluated.
Tasks
- Debye-Scherrer photographs are to be taken of powdered samples of sodium chloride and caesium chloride.
- The Debye-Scherrer rings are to be evaluated and assigned to the corresponding lattice planes.
- The lattice constants of the sample materials are to be determined.
- The number of atoms in the unit cells of each sample are to be determined.
Learning objectives
- Crystal lattices
- Crystal systems
- Reciprocal lattice
- Miller indices
- Structure amplitude
- Atomic form factor
- Bragg scattering
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Digital learning
(de) Versuchsbeschreibung
p2541401d .pdf
File size 0.97 Mb
pdf
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(de) Versuchsbeschreibung_docx
p2541401d .docx
File size 0.97 Mb
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(en) Versuchsbeschreibung
p2541405_en .pdf
File size 1.63 Mb
pdf
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(es) Versuchsbeschreibung
p2541405_es .pdf
File size 1.68 Mb
pdf
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X-ray investigation of cubic crystal structures / Debye-Scherrer powder method
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