Person Whelan; Michael John (1931 - 2024); physicist Whelan Michael John physicist 1931 - 2024 British Male Leeds, Yorkshire, England 02/11/1931 19311102 Oxford, England 30/11/2024 20241130

Physicist Microscopy Physics Electron microscopy Education: Gonville and Caius College, Cambridge Career: Research posts at the University of Cambrdige (1966); joined the Department of Materials, Univeristy of Oxford (1966); Emeritus Professor, Department of Materials, Univeristy of Oxford (2011-2024). Awards/Medals: C.V. Boyes Prize, Institute of Physics 1965 Distinguished Scientist Award, Microscope Society of America 1998 Gjønnes Medal in Electron Crystallography, with Archibald Howie 2011 Memberships: Fellow of the Japanese Society of Microscopy 2003 Microscopy Society of America 2009 Parents: William Whelan and Ellen Whelan Conducted pioneering work to develop the transmission electron microscopy technique for the study of defects in crystals. He was responsible both for establishing many of the basic experimental techniques, and for the theories of image contrast essential for the detailed interpretation of the micrographs. His treatment of image contrast from a stacking fault based on the dynamical theory of electron diffraction forms the basis of all subsequent work on image contrast from defects. Together with Archie Howie, he was responsible for developing the theory of image contrast from dislocations, and he has also made important contributions to the understanding of absorption and inelastic scattering of electrons in crystals. He pioneered the development of a combined electron microscope and energy analyser for carrying out microanalysis on a very fine scale. His electron microscope study of dislocation reactions in face-centred cubic metals established and extended an important aspect of dislocation theory. He also developed the first direct method for measuring stacking fault energy (from the curvature of dislocations at nodes). Medals and prizes: Hughes Medal 1988 Fellow 18/03/1976 44 The Royal Society Fellows Directory, Professor Michael Whelan FRS, [URL: https://royalsociety.org/people/michael-whelan-12516/; last accessed: 02/04/2025] Department of Minerals, University of Oxford, Professor Mike Whelan, [URL: https://www.materials.ox.ac.uk/article/professor-mike-whelan; last accessed: 02/04/2025] International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) - Ottawa 1996 ISBN 0-9696035-3-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 https://royalsocietypublishing.org/action/doSearch?ContribAuthorRaw=Whelan%2C+Michael+John 2 Nov 1931 - The past Fellows entries are under continuous revision. If you have queries or additional information to contribute, please contact Library@royalsociety.org. Content in external sources is not controlled by the Royal Society and historical sources may include content that is now unacceptable. Reviewed on 02/04/2025 as part of the Name Authority Project update. NA2094 21/11/2001 Andyg Martind 03/06/2025 RS_NET\VirginiaM Yes 7b71b033-79e8-42b7-96b8-396f574a5963