Peter Armbruster (born July 25 1931 in Dachau, Bavaria) is a physicist at the Gesellschaft für Schwerionenforschung (GSI) facility in Darmstadt, Germany, and is credited with discovering elements 108 Hassium, 109 Meitnerium, 110 (darmstadtium), 111 (roentgenium), and 112 (ununbium). 1931 (MCMXXXI) is a common year starting on Thursday. ... This article is about Dachau town. ... A physicist is a scientist trained in physics. ... The Gesellschaft für Schwerionenforschung mbH (GSI, Institute for Heavy Ion Research) in Wixhausen, a suburb of Darmstadt, Germany is a federally funded heavy ion research center. ... General Name, Symbol, Number hassium, Hs, 108 Chemical series transition metals Group, Period, Block 8, 7, d Appearance unknown, probably silvery white or metallic gray Atomic mass (269) g/mol Electron configuration perhaps [Rn] 5f14 6d6 7s2 (guess based on osmium) Electrons per shell 2, 8, 18, 32, 32, 14... Known properties Name, Symbol, Number meitnerium, 109, Mt Chemical series Transition metals Group, Period, Block 9, 7, d Appearance unknown Atomic weight [268] amu Electron configuration probably [Rn] 5f14 6d7 7s2 e- s per energy level 2, 8, 18, 32, 32, 15, 2 State of matter Presumably a solid Meitnerium... Known properties Name, Symbol, Number Darmstadtium, Ds, 110 Chemical series Transition metals Group, Period, Block 10, 7, d Appearance unknown Atomic weight From [267] amu to [281] amu Electron configuration probably [Rn] 5f14 6d9 7s1 a guess based upon platinum e- s per energy level 2, 8, 18, 32, 32... General Name, Symbol, Number roentgenium, Rg, 111 Chemical series transition metals Group, Period, Block 11, 7, d Appearance unknown, probably silvery white or metallic gray Atomic mass (272) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s1 (guess based on gold) Electrons per shell 2, 8, 18, 32, 32, 18... General Name, Symbol, Number ununbium, Uub, 112 Chemical series transition metals Group, Period, Block 12, 7, d Appearance unknown, probably silvery white or metallic gray Atomic mass (285) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 (guess based on mercury) Electrons per shell 2, 8, 18, 32, 32, 18...

He studied physics at the Technical University of Stuttgart and Munich, and obtained his Ph.D. in 1961 under Heinz Maier-Leibnitz, Technical University of Munich. His major research fields are fission, interaction of heavy ions in matter and atomic physics with fission product beams at the Research Center of Jülich (1965 - 1970). He was Senior Scientist at the Gesellschaft für Schwerionenforschung Darmstadt, GSI, from 1971 - 1996. From 1989 - 1992 he was research Director of the European Institut Laue-Langevin (ILL), Grenoble. Since 1996 he is involved in a project on incineration of nuclear waste by spallation and fission reactions. Munich University of Technology, or Technical University of Munich (TUM) (German: Technische Universität München, TUM), is a major German university, located in Munich (and the towns of Garching and Weihenstephan out of Munich). ... (This page is mostly a translation of the article in the German language Wikipedia. ... Institut Laue-Langevin The Institut Laue-Langevin is an internationally-financed scientific facility, situated in Grenoble, France. ... A Russian fissile material storage facility Radioactive waste is waste material containing radioactive chemical elements which does not have a practical purpose. ...

He was affiliated as professor to the University of Cologne (1968) and the Darmstadt University of Technology since 1984. The University of Cologne (Universität zu Köln) is one of the oldest Universities in Europe and, with over 47,000 students, is one of the largest institutions of higher education in Germany. ... The Darmstadt University of Technology in Darmstadt, Germany plays a sigificant role among german universities. ...

He has received many awards for his work, to mention a few: the Max-Born Medal awarded by the Institute of Physics London and the Deutsche Physikalische Gesellschaft in 1988, and the Stern-Gerlach Medal awarded by the Deutsche Physikalische Gesellschaft in 1997. The American Chemical Society honoured Peter Armbruster 1997 as one of few non-Americans with the 'Nuclear Chemistry Award'. The American Chemical Society (ACS) is a learned society (professional association) based in the United States that supports scientific inquiry in the field of chemistry. ...

Sources

Jefferson Lab