DIY Scanning Electron Microscope – Overview

Today, I finally produced an image with my DIY scanning electron microscope. I’ve spent the last few months working on this project, and am encouraged by today’s success. There is still a lot of work left to do in making the image higher resolution, and eliminating sources of noise, however this image proves that all parts of the microscope are operating as designed. I will be showing this project at Maker Faire 2011 in San Mateo. Come see it for yourself in person! benkrasnow.blogspot.com Search my blog for “microscope” for additional images and info: benkrasnow.blogspot.com
Video Rating: 4 / 5

17 Replies to “DIY Scanning Electron Microscope – Overview”

  1. Interesting, so a scanning electron microscope is essentially a CRT television, except the beam is focused onto a small area rather than projected onto a large screen. Seems like the most complex part is the electron sensor and all it does is measure the instantaneous “brightness” of the reflected electrons and convert it into a voltage. Looks like it would be relatively easy to ditch the o-scope and add an LCD display for a nice “finished product” look. Thanks for the informative video!!!

  2. Wow, this is great. What kind of schooling do you have? I’m looking up oil diffusion pump right now.how fat is you oscope, I’m guessing 500 or faster? I learned a lot thanks. Can’t wait to see your other vids

  3. This is just unbelievable! A scanning electron microscope is not the first thing I would think of as a DIY project. This is one of the most interesting videos I’ve ever come across on Youtube. Congratulations!

  4. Ben, Loved your new article in Make on this subject. Might it be possible to use the electron gun from a TV with the deflection plates intact to make a simple Scanning microscope? Better focusing may be in order. -Chris

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