Peter Armbruster (born 25 July 1931) is a

German physicist This is a list of Germans, German physicists. A * Ernst Abbe * Max Abraham * Gerhard Abstreiter * Michael Adelbulner * Martin Aeschlimann * Georg von Arco * Manfred von Ardenne * Peter Armbruster * Leo Arons * Markus Aspelmeyer * Felix Auerbac ...

at the

Gesellschaft für Schwerionenforschung The GSI Helmholtz Centre for Heavy Ion Research (german: GSI Helmholtzzentrum für Schwerionenforschung) is a federally and state co-funded heavy ion () research center in the Wixhausen suburb of Darmstadt, Germany. It was founded in 1969 as th ...

(GSI) facility in Darmstadt, Germany, and is credited with co-discovering elements 107 ( bohrium), 108 (

hassium Hassium is a chemical element with the symbol Hs and the atomic number 108. Hassium is highly radioactive; its most stable known isotopes have half-lives of approximately ten seconds. One of its isotopes, 270Hs, has magic numbers of both protons ...

), 109 (

meitnerium Meitnerium is a synthetic chemical element with the symbol Mt and atomic number 109. It is an extremely radioactive synthetic element (an element not found in nature, but can be created in a laboratory). The most stable known isotope, meitnerium-2 ...

), 110 (

darmstadtium Darmstadtium is a chemical element with the symbol Ds and atomic number 110. It is an extremely radioactive synthetic element. The most stable known isotope, darmstadtium-281, has a half-life of approximately 12.7 seconds. Darmstadtium was firs ...

), 111 (

roentgenium Roentgenium is a chemical element with the symbol Rg and atomic number 111. It is an extremely radioactive synthetic element that can be created in a laboratory but is not found in nature. The most stable known isotope, roentgenium-282, has a h ...

), and 112 (

copernicium Copernicium is a synthetic chemical element with the symbol Cn and atomic number 112. Its known isotopes are extremely radioactive, and have only been created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of ap ...

) with research partner

Gottfried Münzenberg Gottfried Münzenberg (born 17 March 1940) is a German physicist. He studied physics at Justus-Liebig-Universität in Giessen and Leopold-Franzens-Universität Innsbruck and completed his studies with a Ph.D. at the University of Giessen, ...

. Armbruster was born in Dachau, Bavaria. He studied physics at the Technical University of Stuttgart and Munich, and obtained his Ph.D. in 1961 under

Heinz Maier-Leibnitz Heinz Maier-Leibnitz (28 March 1911, in Esslingen am Neckar – 16 December 2000, in Allensbach) was a German physicist. He made contributions to nuclear spectroscopy, coincidence measurement techniques, radioactive tracers for biochemistry and me ...

Technical University of Munich The Technical University of Munich (TUM or TU Munich; german: Technische Universität München) is a public research university in Munich, Germany. It specializes in engineering, technology, medicine, and applied and natural sciences. Establis ...

. His major research fields are fission, interaction of heavy ions in matter and atomic physics with fission product beams at the Research Centre of Jülich (1965 to 1970). He was Senior Scientist at the Gesellschaft für Schwerionenforschung Darmstadt, GSI, from 1971 to 1996. From 1989 to 1992 he was research Director of the European

Institut Laue-Langevin An institute is an organisational body created for a certain purpose. They are often research organisations (research institutes) created to do research on specific topics, or can also be a professional body. In some countries, institutes can ...

(ILL), Grenoble. Since 1996 he has been involved in a project on incineration of

nuclear waste Radioactive waste is a type of hazardous waste that contains radioactive material. Radioactive waste is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, rare-earth mining, and nuclear weapons ...

by spallation and fission reactions. He was affiliated as professor to the

University of Cologne The University of Cologne (german: Universität zu Köln) is a university in Cologne, Germany. It was established in the year 1388 and is one of the most prestigious and research intensive universities in Germany. It was the sixth university to ...

(1968) and the

Darmstadt University of Technology Darmstadt () is a city in the state of Hesse in Germany, located in the southern part of the Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the fourth largest city in the state of Hesse a ...

since 1984. He has received many awards for his work, including the

Max Born Medal and Prize The Max Born Medal and Prize is a scientific prize awarded yearly by the German Physical Society (DPG) and the British Institute of Physics (IOP) in memory of the German physicist Max Born, who was a German-Jewish physicist, instrumental in the ...

awarded by the

Institute of Physics The Institute of Physics (IOP) is a UK-based learned society and professional body that works to advance physics education, research and application. It was founded in 1874 and has a worldwide membership of over 20,000. The IOP is the Physic ...

and the

Deutsche Physikalische Gesellschaft The German Physical Society (German: , DPG) is the oldest organisation of physicists. The DPG's worldwide membership is cited as 60,547, as of 2019, making it the largest physics society in the world. It holds an annual conference () and multiple ...

in 1988, and the Stern-Gerlach Medal awarded by the Deutsche Physikalische Gesellschaft in 1997. The

American Chemical Society The American Chemical Society (ACS) is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 155,000 members at all d ...

honoured Peter Armbruster 1997 as one of few non-Americans with the 'Nuclear Chemistry Award'.

References

* Peter Armbruster: ''Bau eines Massenseparators für Spaltprodukte und Nachweis einer Anregung innerer Elektronenschalen bei der Abbremsung von Spaltprodukten'' T.H. München, F. f. allg. Wiss., PhD thesis, 21. Jan. 1961

Sources

Jefferson Lab
1931 births Discoverers of chemical elements 20th-century German physicists Technical University of Munich alumni Living people People from Dachau {{Germany-physicist-stub Technische Universität Darmstadt faculty