X-ray and Electron Diffraction Concept

Demonstrations in X-ray and Electron Diffraction

$Phosphorescent screen showing bright central spot with concentric blue diffraction rings from electron scattering$

Electron Diffraction 1

Demonstrates the wave nature of electrons by showing diffraction rings from a polycrystalline graphite target. Students observe direct evidence for de Broglie's hypothesis and can verify quantitatively by varying the …

$Red laser diffraction pattern showing an X-shaped cross with a bright central spot on a dark background$

X-ray Diffraction: Optical Analog

Laser light diffracting through a helical coiled filament produces an X-shaped pattern analogous to the famous "Photo 51" X-ray diffraction image of DNA. Students see how helical geometry produces distinctive …