Future studies on electron scattering; a renaissance

27th Summer School and International Symposium on the Physics of Ionized Gases

Mason, Nigel J.^1

Department of Physical Sciences, Open University, Walton Hall, Milton Keynes

MK7 6AA, United Kingdom^1

关键词: Electron atoms;    Electron interaction;    Electron-molecule collisions;    Emerging technologies;    Franck-hertz experiments;    Molecular phenomena;    Quantitative experiments;    Scientific studies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/565/1/012001/pdf
DOI  :  10.1088/1742-6596/565/1/012001

来源: IOP

【 摘 要 】

2014 is the centenary of the first announcement of the Franck-Hertz experiment [1], now regarded as one of the pivotal experiments of modern physics. The Franck-Hertz experiment is widely regarded as an experiment that provided validation of the Bohr theory of atomic structure, itself only published in 2013, however it should also be viewed as the first quantitative experiment in electron scattering and the birth of scientific study of atomic and molecular phenomena by collisions. Today we recognize that electron-atom and electron- molecule collisions are prevalent across nature, describing disparate phenomena whilst the exploitation of such collisions underpins many of the technologies upon which modern society relies. The centenary of the Franck-Hertz experiment is thus a suitable opportunity to review both our current knowledge of electron interactions and to consider the directions of future research. In this article I therefore aim to both review our current state of knowledge and look forward, proposing that recent advances are providing something of a renaissance to the field and are vital for emerging technologies as well as answering some of the greatest scientific challenges of the 21st century.