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HEIS SPECTROSCOPY [1 record]

Record 1 2011-09-23

English

Subject field(s)
  • Analytical Chemistry
  • Materials Engineering
DEF

A method of determining the concentrations of various elements as a function of depth beneath the surface of a sample, by measuring the energy spectrum of ions which are backscattered out of a beam directed at the surface.

CONT

Rutherford backscattering spectroscopy(RBS) is an analytical technique used in materials science. Sometimes referred to as high-energy ion scattering(HEIS) spectroscopy, RBS is used to determine the structure and composition of materials by measuring the backscattering of a beam of high energy ions impinging on a sample.

Key term(s)
  • high energy ion scattering spectroscopy

French

Domaine(s)
  • Chimie analytique
  • Génie des matériaux
CONT

Les faisceaux d'ions sont un des rares moyens de mesurer quantitativement (sans standard) la distribution en profondeur des éléments dans un matériaux. Ces techniques, regroupées sous le nom de microanalyse nucléaire, sont peu dommageables pour les matériaux. Au LAFI de l'INRS-Énergie et Matériaux nous disposons des techniques suivantes : la détection des reculs élastiques (ERD), la spectrométrie par rétrodiffusion Rutherford (RBS), l'émission de rayons-x induite par protons (PIXE) et les réactions nucléaires (RN et p, g).

Spanish

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