Electron diffraction

Lester Germer (right) with Clinton Davisson in 1927

$Wide angle view of TEM diffraction tilting.$

1: Sketch of the electron beam-path in a TEM.

$2: Typical electron diffraction pattern obtained in a TEM with a parallel electron beam$

Electron diffraction refers to the wave nature of electrons. However, from a technical or practical point of view, it may be regarded as a technique used to study matter by firing electrons at a sample and observing the resulting interference pattern. This phenomenon is commonly known as wave–particle duality, which states that a particle of matter (in this case the incident electron) can be described as a wave. For this reason, an electron can be regarded as a wave much like sound or water waves. This technique is similar to X-ray and neutron diffraction.

单词	Convergent beam electron diffraction
释义	Convergent beam electron diffraction 英语百科 Electron diffraction $Wide angle view of TEM diffraction tilting.$ $2: Typical electron diffraction pattern obtained in a TEM with a parallel electron beam$ Electron diffraction refers to the wave nature of electrons. However, from a technical or practical point of view, it may be regarded as a technique used to study matter by firing electrons at a sample and observing the resulting interference pattern. This phenomenon is commonly known as wave–particle duality, which states that a particle of matter (in this case the incident electron) can be described as a wave. For this reason, an electron can be regarded as a wave much like sound or water waves. This technique is similar to X-ray and neutron diffraction.
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Convergent beam electron diffraction

Electron diffraction