Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Université Paris-Saclay

Daniel Comparat

Yan Picard

Raphaël Hahn

Lionel Amiaud

Nicholas Barrett

Gerd Schoenhense

Anne Lafosse

Olena Fedchenko

A system for performing surface analysis on a material, includes a pulsed electron source that forms a monochromatic beam of incident electrons; means for conveying the incident electrons to the surface of a sample of material, so as to form backscattered electrons, and the backscattered electrons to detecting means, the conveying means comprising at least one electron optical system; means for detecting the backscattered electrons; the pulsed electron source comprising: a source of atoms; a continuous-wave laser beam configured to form a laser excitation zone able to excite the atoms to Rydberg states; a pulsed electric field on either side of the laser excitation zone, the pulsed electric field being configured to ionize at least the excited atoms and to form a monochromatic beam of electrons.

Surface analysis system comprising a pulsed electron source

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PARIS, France

Daniel Comparat