Roy Middleton

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Roy Middleton (born October 3, 1927 in Atherton , † June 23, 2004 in Media , Pennsylvania ) was an English experimental nuclear physicist who taught and researched in the United States from 1964.

Middleton graduated from the University of London with a bachelor's degree in 1948 and received a PhD in nuclear physics from the University of Liverpool in 1951 . In his dissertation he examined the (d, n) stripping reaction (in which an 8 MeV deuteron releases its proton to the target with the neutron of the deuteron as one of the end products of the scattering). Such reactions played an important role in establishing collective core models. He remained until 1955 as a teaching assistant at the University of Liverpool and was then a senior scientist at the Atomic Weapons Research Establishment in Aldermaston until 1964 , where he continued his research on nuclear reactions (especially transfer reactions). In 1964 he was first visiting professor and from 1965 professor of nuclear physics at the University of Pennsylvania .

There he developed a new ion source (Cesium Sputter Negative Ion Source) in 1972, which was an important step in the development of accelerator mass spectrometry (AMS). He developed various other techniques for AMS, which he also applied to radioactive age determination (for example in a program for Ca 41 to determine the age of Pleistocene bones or to determine the age with Be 10 in the investigation with geophysicists of the Carnegie Institution of the lavas of mid-ocean volcanoes) or in the investigation the interaction of cosmic radiation with matter on earth. Most recently he dealt with the physics of various negatively charged molecular ions.

He tabulated the properties of the negative ions of various atoms and molecules in his Negative Ion Cookbook .

In 1979 he received the Tom W. Bonner Prize for Nuclear Physics . He was a fellow of the American Physical Society .

He was married and had a son and a daughter.

Web links

Individual evidence

  1. Short biography at ACAP ( Memento of the original from March 7, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed January 6, 2013 @1@ 2Template: Webachiv / IABot / www.aip.org