Karl Manne Siegbahn, Nobel Prize 1924 Photograph by Science Source
Karl Manne Siegbahn, Nobel Prize 1924 is a photograph by Science Source which was uploaded on March 6th, 2013.  The photograph may be purchased as wall art, home decor, apparel, phone cases, greeting cards, and more.  All products are produced on-demand and shipped worldwide within 2 - 3 business days.
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Description

Karl Manne Siegbahn. Historical portrait of the Swedish physicist Karl Manne Georg Siegbahn (1886-1978). Siegbahn worked in X-ray spectroscopy from 1914, discovering a third (M) set of lines in X-ray emission spectra, corresponding to new X-rays with different energies to other X-rays. These lines provided further evidence for Bohr's shell model of the atom, where X-rays are produced by the excitation of electrons from shells within atoms. The shells would be labeled using this K-L-M-N-O-P-Q series. Siegbahn also made advances in the field of X-ray diffraction, used to determine crystal structures. He was awarded the 1924 Nobel Prize for Physics for his X-ray spectroscopy work