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electrostatic lens electron microscope. At the time, electrons were understood to be charged particles of matter; the wave nature of electrons was not fully...118 KB (15,058 words) - 07:02, 3 September 2024
visible light are also called "lenses", such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses. Lenses are used in various imaging...69 KB (8,276 words) - 04:04, 9 October 2024
magnetic and electrostatic lenses act upon a charged particle beam similarly to optical lenses upon a light beam. Electron optics calculations are crucial...11 KB (1,279 words) - 13:50, 4 October 2024- electrostatic lens is a device that assists in the transport of charged particles. For instance, it can guide electrons emitted from a sample to an electron analyzer...8 KB (1,087 words) - 22:58, 6 February 2023
Electron-beam welding (EBW) is a fusion welding process in which a beam of high-velocity electrons is applied to two materials to be joined. The workpieces...22 KB (2,946 words) - 00:17, 20 May 2024
the glass lenses of an optical light microscope to control the electron beam, for instance focusing them to produce magnified images or electron diffraction...50 KB (5,678 words) - 10:05, 8 October 2024- the lenses. As in any emission electron microscope, the objective or cathode lens determines the resolution. The latter is dependent on the electron-optical...20 KB (2,699 words) - 21:36, 26 September 2024
Microscope (section Electron microscopes)optical microscope but uses electrons in the place of light and electromagnets in the place of glass lenses. Use of electrons, instead of light, allows...31 KB (3,699 words) - 15:02, 20 May 2024
electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons....67 KB (8,141 words) - 10:21, 21 August 2024
elastically backscattered electrons travel back through the objective lens, reaccelerate to the gun voltage (because the objective lens is grounded), and pass...23 KB (2,924 words) - 01:20, 5 October 2024- A magnetic lens is a device for the focusing or deflection of moving charged particles, such as electrons or ions, by use of the magnetic Lorentz force...3 KB (310 words) - 19:59, 23 August 2023
Particle accelerator (redirect from Electron accelerator)accelerator. Free-electron laser led to the Inverse Free-electron laser accelerator. A laser can also be inverted to produce acceleration of electrons. In the future...66 KB (7,678 words) - 18:12, 17 September 2024
Ptychography (redirect from Electron ptychography)X-rays, extreme ultraviolet (EUV) or electrons. Unlike conventional lens imaging, ptychography is unaffected by lens-induced aberrations or diffraction...47 KB (5,000 words) - 15:33, 5 October 2024
The electron ( e− , or β− in nuclear reactions) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first...154 KB (15,572 words) - 12:41, 9 October 2024
An electron gun (also called electron emitter) is an electrical component in some vacuum tubes that produces a narrow, collimated electron beam that has...6 KB (705 words) - 13:28, 31 August 2024- Around the turn of the century the electron optical components were coupled with computer control of the lenses and their alignment; this was the breakthrough...18 KB (1,986 words) - 04:26, 24 September 2024
Electron diffraction is a generic term for phenomena associated with changes in the direction of electron beams due to elastic interactions with atoms...141 KB (15,540 words) - 05:19, 30 September 2024
Dark-field microscopy (category Electron microscopy)dark-ground microscopy) describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. Consequently...11 KB (1,225 words) - 06:26, 27 June 2024
electron microscopes is limited not by the electron wavelength, but by intrinsic imperfections of electron lenses. These are referred to as spherical and...7 KB (826 words) - 15:38, 31 August 2024
thinner near the posterior pole. The photos from electron and light microscopes show an area of the capsule lens equator where the capsule grows and adjacent...53 KB (6,529 words) - 01:16, 9 September 2024
- suppose an electron ε at rest and an electron ε' moving past it with the velocity v. Let ε' be originally so far away that the electrons do not appreciably
- eighteenth century. Optics is one of the oldest branches of physics. A converging lens of rock crystal is said to have been found in the ruins of Nineveh. In Greece
- electron microscope operate on similar principles. Both microscopes contain an energy source, a condenser lens, a specimen holder, an objective lens,