Physics Home > Teaching Labs > Modern Physics > Crystal X-Ray Diffraction

Topics

Points of Emphasis

Prerequisites

Lab Activities

The students find the crystallographic orientation of a single crystal using the Laue method in which "white" x-ray radiation is diffracted from a single crystal. The crystals used are NaCl and KCl. In addition, they strain a NaCl crystal in a vice and observe the effect of plastic deformation on the Laue pattern.

Course Level

Senior: P76

Student Handouts

Equipment

Number of set-ups available: 1 Per lab station: 1 XR-7 polaroid camera Type 57 polaroid film crystals of NaCl 1 goniometer 1 Phillips X-ray machine with tungsten target 1 5 cm spacer film badges (1 per student) Greninger Net (5 cm) graph paper Wulfe Net graph paper X-ray log paper

Notes

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