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Article: Market profile: ESCA.(Electron spectroscopy for chemical analysis, spectroscopes)
- Article from:
- Instrument Business Outlook
- Article date:
- December 31, 2005
CopyrightCOPYRIGHT 2005 Strategic Directions International Inc. (SDI). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Electron spectroscopy for chemical analysis (ESCA) is one of several closely related surface analysis techniques that can be used to probe the atomic and chemical composition of surfaces. In these methods, the sample is bombarded by an energetic beam of ions, electrons or photons, which liberate other particles from the surface that, when analyzed, provide information about the sample.
In the case of ESCA, the probing beam is composed of high-energy photons that do not penetrate very far into the sample amd thus probe a very thin surface layer of the sample. Since the beam is typically composed of x-ray or ultraviolet light, ESCA is also known as x-ray or ...