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Electron Diffraction

AQA A-level PhysicsRadioactivityLesson 24 of 25

The diameter of a nucleus is about 1fm (10-15m). If an electron beam is acceleration through about 100 million volts and passed through a thin slice of solid material diffraction occurs.

The angle of diffraction θ and the number of electrons emitted per second can be measured by a detector.

Diagram

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