= George Paget Thomson
{c}
{tag=Physicist}
{title2=1892-1975}
{wiki}
= George P. Thomson
{c}
{synonym}
= G. P. Thomson
{c}
{synonym}
<George Paget Thomson> demonstrated wave behavior of <electrons> by passing an <electron> beam through thin material and recording diffraction patterns. Many <crystal> orientations in a thin polycrystalline film produce rings, whose geometry can be compared with the <wavelength> associated with the <electron> <momentum>. The experiment connects a photographic pattern with the <de Broglie wavelength>, making <electron> <interference> observable at energies and in a geometry different from a reflected <crystal> beam.<Nobel Lectures, Physics 1922–1941/Electronic Waves by George Paget Thomson>[Nobel lecture, transmission diffraction and electron-wave interpretation]{ref}
Physics.https://archives.trin.cam.ac.uk/index.php/catalogue-of-the-papers-and-correspondence-of-sir-george-paget-thomson-frs-1892-1975[Independent professional profile]{ref}
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{title=Portrait of <George Paget Thomson>}
{description=Nobel Foundation; individual photographer unidentified. https://commons.wikimedia.org/wiki/File:George_Paget_Thomson.jpg[Commons PD-Sweden claim plus US URAA/formalities claim; its PD-URAA tag is flagged as needing updating.], via Wikimedia Commons.}
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