Operator using a transmission electron microscope (TEM). The operating console has a monitor and an optical device with a low magnification. A beam of electrons from an electron gun is projected down the microscope column (white),passing through the sample of material to be observed,and hitting the screen which fluoresces to give the image. The image is then viewed by using the optical magnifying device. The electron beam is focused by electron magnets. The sample needs to be cut very thin to allow the electrons to pass through it. TEMs may demonstrate resolutions of 0. 2-0. 5 nanometres,about 400 times better than the resolution of a scanning electron microscope | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 2882 px × 3543 px |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property Release : | Non requis |
Restrictions : | - |