electron scattering

electron scattering

      deflection of the path of electrons (electron) as they pass through a solid (typically a metal, semiconductor, or insulator). Deflections, or collisions, are caused by electrostatic forces operating between the negatively charged electrons and atoms (atom) within the solid (see quantum electrodynamics). These forces reduce the speed of the electrons, thereby limiting the performance of electronic devices based on transistors (transistor) and integrated circuits (integrated circuit). The deflection of a beam of electrons by a target also is called electron scattering and has been used to probe the size and charge distribution of atomic nuclei. In the early 1970s, electron scattering helped to confirm that protons (proton) and neutrons (neutron) are made of still more elementary subatomic particles (subatomic particle) known as quarks (quark). See also cross section and electron diffraction.

* * *


Universalium. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Electron scattering — is the process whereby an electron is deflected from its original trajectory. Electrons are charged particles and are acted upon by the electromagnetic forces. They are scattered by other charged particles through the electrostatic Coulomb forces …   Wikipedia

  • electron-electron scattering — elektroninė elektronų sklaida statusas T sritis fizika atitikmenys: angl. electron electron scattering vok. Elektron Elektron Streuung, f rus. рассеяние электронов на электронах, n; электрон электронное рассеяние, n pranc. diffusion électron… …   Fizikos terminų žodynas

  • electron scattering cross-section — elektronų sklaidos skerspjūvis statusas T sritis fizika atitikmenys: angl. electron scattering cross section vok. Elektronenstreuquerschnitt, m; Elektronenstreuungsquerschnitt, m rus. сечение рассеяния электронов, n pranc. section de diffusion… …   Fizikos terminų žodynas

  • Electron beam lithography — (often abbreviated as e beam lithography) is the practice of scanning a beam of electrons in a patterned fashion across a surface covered with a film (called the resist),cite book |last= McCord |first=M. A. |coauthors=M. J. Rooks |title=… …   Wikipedia

  • Electron mobility — This article is about the mobility for electrons and holes in metals and semiconductors. For the general concept, see Electrical mobility. In solid state physics, the electron mobility characterizes how quickly an electron can move through a… …   Wikipedia

  • Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …   Wikipedia

  • Electron energy loss spectroscopy — In electron energy loss spectroscopy (EELS) a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their… …   Wikipedia

  • Électron — Traduction à relire Electron → …   Wikipédia en Français

  • Electron hole — An electron hole is the conceptual and mathematical opposite of an electron, useful in the study of physics and chemistry. The concept describes the lack of an electron. It is different from the positron, which is the antimatter duplicate of the… …   Wikipedia

  • Electron diffraction — is a technique used to study matter by firing electrons at a sample and observing the resulting interference pattern. This phenomenon occurs due to the wave particle duality, which states that a particle of matter (in this case the incident… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”