|Born||1 August 1911|
|Died||3 July 2000|
|Institutions||Conservatoire National des Arts et Métiers (CNAM), University of Paris, Centre national de la recherche scientifique (CNRS)|
|Alma mater||École Normale Supérieure|
|Doctoral advisor||Template:If empty|
|Known for||X-ray crystallography, Guinier camera, Guinier's Law|
|Notable awards||Gregori Aminoff Prize (1985)|
André Guinier (1 August 1911 – 3 July 2000) was a French physicist who did important work in the field of X-ray diffraction and solid-state physics. He worked at the Conservatoire National des Arts et Métiers, then taught at the University of Paris and later at the University of Paris-Sud in Orsay, where he co-founded the Laboratory of Solid State Physics. He was elected to the French Academy of Sciences in 1971 and won the Gregori Aminoff Prize in 1985.
In the field of small-angle scattering he discovered the relationship of particle size to intensity which is called Guinier's Law. He developed the Guinier camera for use in X-ray diffraction and contributed to the development of the electron microprobe by Raymond Castaing.
- Guinier, André (1955) Small-angle scattering of X-rays. OCLC number: 01646250.
- Obituary published in Acta Crystallographica
- Ravy S. André Guinier (1911–2000): a physicist among crystallographers //Physica Scripta. – 2015. – Т. 90. – №. 3. – С. 38001-38004.
- His recollections of his early work
- His personal remembrances for the book "50 Years of X-ray Diffraction" (pg. 574)
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