Electron diffraction camera, 1925.

 
Electron diffraction camera, 1925.
4 0 c m
 
30cm
actual image size: 22cm x 32cm

Description

Made in Aberdeen by G P Thomson (1892-1975), the son of J J Thomson (1856-1940) who identified the electron. Working in the same field, G P Thomson observed diffraction of electrons pasing through thin gold foil, recorded on photographic plates as concentric rings of varying intensity about the incident beam. This supported the idea of de Brogle that particles had wave-like properties. In 1937, G P Thomson received the Nobel Prize for this work, jointly with the American physicist C J Davison (1881-1958) who also observed electron diffraction using nickel crystals.

Image Details

Image Ref.
 
10307458

© Science Museum / Science & Society Picture Library

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