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Electron microscope

  • Couverture cartonnée
  • 104 Nombre de pages
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An electron microscope is a type of microscope, a scientific instrument which is used to magnify things on a fine scale. That uses... Lire la suite
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Description

An electron microscope is a type of microscope, a scientific instrument which is used to magnify things on a fine scale. That uses a particle beam of electrons to illuminate a specimen and create a highly-magnified image. Electron microscopes have much greater resolving power than light microscopes that use electromagnetic radiation and can obtain much higher magnifications of up to 1 million times, while the best light microscopes are limited to magnifications of 1000 times. Both electron and light microscopes have resolution limitations, imposed by the wavelength of the radiation they use. The greater resolution and magnification of the electron microscope is because the de Broglie wavelength of an electron is much smaller than that of a photon of visible light. The electron microscope uses electrostatic and electromagnetic lenses in forming the image by controlling the electron beam to focus it at a specific plane relative to the specimen. This manner is similar to how a light microscope uses glass lenses to focus light on or through a specimen to form an image.

Informations sur le produit

Titre: Electron microscope
Sous-titre: Microscope, Particle beam, Electron, Angular resolution, Optical microscope, Electromagnetic radiation, Magnification, Radiation, Matter wave, Electrostatic lens, Electromagnetism, Photon
Éditeur:
Code EAN: 9786130215637
ISBN: 978-613-0-21563-7
Format: Couverture cartonnée
Genre: Biologie
nombre de pages: 104
Poids: 171g
Taille: H220mm x B150mm x T6mm
Année: 2009