Publication

Soft-x-ray transmission photoelectron spectromicroscopy with the MEPHISTO system

Giorgio Margaritondo, Luca Perfetti, Pierre-André Baudat
1998
Journal Articles

Abstract

We complemented with data taken in transmission mode the recently described tests of the novel spectromicroscope MEPHISTO (Microscope a Emission de Photoelectrons par Illumination Synchrotronique de type Onduleur). Transmitted x rays were converted by a photocathode into photoelectrons, which were subsequently electron-optically processed by the spectromicroscope producing submicron-resolution images. Test images demonstrated excellent contrast. (C) 1998 American Institute of Physics. [S0034-6748(98)02409-5]

Official source

https://infoscience.epfl.ch/entities/publication/5750729c-b99b-4a4d-a70c-8ac4df24d89b

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Giorgio Margaritondo, Luca Perfetti, Pierre-André Baudat
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5750729c-b99b-4a4d-a70c-8ac4df24d89b

About this result

Related concepts (15)

X-ray

X-ray radiation, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 nanometers to 10 picometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3e16Hz to 3e19Hz) and energies in the range 124 keV to 145 eV, respectively. X-ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays.

Medical imaging

Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. Medical imaging also establishes a database of normal anatomy and physiology to make it possible to identify abnormalities.

Medical ultrasound

Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g. distances and velocities) or to generate an informative audible sound. The usage of ultrasound to produce visual images for medicine is called medical ultrasonography or simply sonography, or echography.