Field-ion micrograph of atoms of iridium
A150/0004 Rights Managed
530 pixels on longest edge, unwatermarked
Request/Download high-res file
Uncompressed file size: 29.5MB
Downloadable file size: 2.8MB
Please login to use the price calculator
Credit: PROF. ERWIN MUELLER/SCIENCE PHOTO LIBRARY
Caption: Field ion micrograph of atoms of iridium. The tiny dots are the locations of individual atoms; the ring-like patterns are facets of a single crystal of the metal. The image was made by superimposing successive micrographs, taken with different col- our filters, to show small changes on the surface. The red dots are atoms which have evaporated or corroded away, while the green ones are probably atoms of gas which have been absorbed. Field-ion microscopy involves placing a tiny needle of a substance like iridium in a gas-filled chamber & passing a high voltage through it. The drifting gas ions hit the charged atoms & are repelled at right angles to form this pattern on a screen.
Release details: Model release not required. Property release not required.
Keywords: atom, atomic structure, chemical, chemistry, element, elements, field-ion microscopy, images, iridium, magnified image, microscopic photos, particle physics, subjects
Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.