I saw that I had a few search engine referrals to this site in which people were seeking information on why electron microscopes use vacuum systems. I have mentioned vacuum systems here, but I haven’t explored it as a topic yet. I surely disappointed inquiring minds when google sent someone here and there ended up [...]
Archive for November 2008
Vacuum Sucks!
November 26, 2008See atoms for less than $100k
November 14, 2008Ok, admittedly Scanning Probe Microscopes (SPMs) are not electron microscopes. But as a renegade microscopist, I’m throwing out the playbook on this post! SPMs work in a completely different way when compared to electron microscopes. SPMs use a very sharp needle – about one atom wide at the tip – to produce an image of [...]
Some more Scanning Electron Microscope images
November 11, 2008Here’s some more recent SEM images. All images from a Hitachi 2460N Environmental SEM
The most powerful Scanning Electron Microscope ever made
November 11, 2008If I am wrong with this title, please correct me. This machine is simply amazing though. The FEI Magellan XHR (Extreme High Resolution) SEM. The resolving power of an SEM is directly related to the accelerating voltage of the electron beam. The higher the beam, the more that the electrons are penetrating the surface of [...]
Some Scanning Electron Microscope Micrographs
November 10, 2008Here’s a few micrographs that I have done recently. I want to post other people’s micrographs here as well, so if you have some good ones, email them to me at franks98(AT)uwosh.edu. Please include photo credit info as well as microscope model (if available), voltage, magnification, specimen, and any other info that you want to [...]
The SEM that I use
November 9, 2008The Hitachi 2460N Environmental SEM. It’s a bit outdated as far as SEM technology (manufactured in 1994), but this scope is still producing wonderful images. When the machine was first installed, the lab had a separate dark room to produce the images on film (film!?!? what’s that!?). Since then, there has been a computer and [...]
Introductions
November 9, 2008Hi Everyone! My name is Scott Frankowski. I am a student at the University of Wisconsin Oshkosh and have had the awesome privilage of working with the university’s electron microscopes. I have always been amazed by the micrographs these machines produce, and now I am having a wonderful time making those micrographs myself. My goal [...]
