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X-RAY PHOTO-EMISSION SPECTROSCOPY [1 record]

Record 1 2017-04-21

English

Subject field(s)
  • Optics
  • Analytical Chemistry
DEF

The spectroscopy of electrons ejected from atoms on irradiation with X-rays.

CONT

Electron Spectroscopy for Chemical Analysis (ESCA) also called X-ray photoelectron spectroscopy is a well demonstrated tool for the determination of chemical states in molecules. ... ESCA consists of the measurement of the kinetic energies of photoelectrons expelled from a sample irradiated with monoenergetic X-rays.

PHR

soft X-ray photoelectron spectroscopy

Key term(s)
  • x-ray photo-electron spectroscopy
  • x-ray photo-emission spectroscopy

French

Domaine(s)
  • Optique
  • Chimie analytique
CONT

La spectroscopie de photoélectrons consiste à analyser en énergie les électrons émis d'une substance irradiée par un rayonnement électromagnétique X ou UV (ultraviolet). [...] La source de photons peut être soit un tube à rayons X (on parle alors d'XPS [X-ray photoelectron spectroscopy]) [...], soit une lampe UV (on parle alors d'UPS [ultra-violet photoelectron spectroscopy]) [...]

CONT

L'avantage de la spectroscopie ESCA est de fournir des informations chimiques uniques ainsi que des informations sur la structure électronique.

Key term(s)
  • spectroscopie de photo-électrons XPS
  • spectroscopie des photo-électrons X
  • spectroscopie des photo-électrons induits par rayonnement X
  • spectroscopie photo-électronique des rayons X

Spanish

Campo(s) temático(s)
  • Óptica
  • Química analítica
CONT

La espectroscopía fotoelectrónica de rayos X, XPS o ESCA (espectroscopía electrónica para análisis químico), es el método de caracterización de superficies más ampliamente utilizado hoy en día.

OBS

XPS: según su sigla en inglés (x-ray photoelectron spectroscopy).

OBS

ESCA: según su sigla en inglés (electron spectroscopy for chemical analysis).

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