A TEM has a lot in common with an ordinary optical microscope. You have to prepare a thin slice of the specimen quite carefully (it's a fairly laborious process) and sit it in a vacuum chamber in the middle of the machine. When you've done that, you fire an electron beam down ...
M.; Yu, T. How do the electron beam writing and metal deposition affect the properties of graphene during device fabrication? Nanoscale 2013, 5, 3352-3358.Shen, X.; Wang, H.; Yu, T. How do the electron beam writing and metal deposition affect the properties of graphene during device ...
How does an Oscilloscope Work? Analog oscilloscopes An oscilloscope works in pretty much the same way as a CRT television. For instance, the electron beams in a tv scan back and forth across a screen coated on the back with phosphors. These phosphors light up whenever the beam hits the scre...
How Does a Microscope Work? - ElectronAs previously mentioned, optical microscopes are limited in resolution by the frequency of the light waves. Electron guns emit a flow of electrons of a considerably shorter wave length than visible light and this fact allows an electron microscope to have ...
The electron gun starts with a smallheater, which is a lot like the hot, bright filament of a regular light bulb. It heats acathode, which emits a cloud of electrons. Twoanodesturn the cloud into anelectron beam: Theaccelerating anodeattracts the electrons and accelerates them toward the scr...
Powder bed fusion (PBF) is a 3D printing technique that uses an energy source, usually a laser or an electron beam, to combine powdered material point by point. It’s one of the most common industrialadditive manufacturing solutions3D printing processes (AM). Both metals and polymers can be...
To understand how telescopes work, let's ask the following question. Why can't you see an object that is far away? For example, why can't you read the writing on a dime when it is 150 feet away with your naked eyes? The answer to this question is simple: the object does not...
To understand how telescopes work, let's ask the following question. Why can't you see an object that is far away? For example, why can't you read the writing on a dime when it is 150 feet away with your naked eyes? The answer to this question is simple: the object does not...
How does 3D printing metal work? Generally speaking, metal 3D printing works by spreading a thin layer of metallic powder across a build tray, which is then selectively melted by a high-powered laser or electron beam as instructed by a digital design. This process is repeated layer by layer...
How does quantum computing work? Quantum computing takes advantage of how quantum matter works: Where classical computing uses binary bits -- 1s and 0s -- quantum computing uses particles such aselectronsand photons that are given either a charge or polarization to act as a 0, 1 or any of...