Publication

MEPHISTO: Performance tests of a novel synchrotron imaging photoelectron spectromicroscope

Giorgio Margaritondo, Pierre-André Baudat
1998
Journal Articles

Abstract

We discuss the scheme rind test performances of this recently commissioned system in its final configuration. The tests show that the improvements in the electron optics system with respect to other instruments in the same class made it possible to reach lateral resolutions in the 50 nm range. They also demonstrate rather good spectromicroscopy and spectroscopy performances, reliability and flexibility of operation. (C) 1998 American Institute of Physics.

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https://infoscience.epfl.ch/entities/publication/0d4664c8-390b-4c16-a22e-41a730b54b36

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Giorgio Margaritondo, Pierre-André Baudat
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/0d4664c8-390b-4c16-a22e-41a730b54b36

About this result

Related concepts (16)

Electron microscope

An electron microscope is a microscope that uses a beam of electrons as a source of illumination. They use electron optics that are analogous to the glass lenses of an optical light microscope. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light, electron microscopes have a higher resolution of about 0.1 nm, which compares to about 200 nm for light microscopes.

Transmission electron microscopy

Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a sensor such as a scintillator attached to a charge-coupled device.

Gamma spectroscopy

Gamma-ray spectroscopy is the qualitative study of the energy spectra of gamma-ray sources, such as in the nuclear industry, geochemical investigation, and astrophysics. Gamma-ray spectrometry, on the other hand, is the method used to acquire a quantitative spectrum measurement. Most radioactive sources produce gamma rays, which are of various energies and intensities. When these emissions are detected and analyzed with a spectroscopy system, a gamma-ray energy spectrum can be produced.

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MEPHISTO: Performance tests of a novel synchrotron imaging photoelectron spectromicroscope

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