A versatile microscope for all contrast techniques and excellent image quality, with unlimited expansion possibilities. I haven’t updated my blog for a couple years now as I’ve been studying in Finland my Master’s in Biomedical Imaging at the University of Turku. It’s been about one year since I had the luck to win a lucky…
Tag: featured
SEM digital image acquisition with ADC microcontroller
After almost one year from the start of this project, I’ve finally succeeded in recording my first digital images from my vintage analog SEM using a Teensy 3.2 microcontroller and a simple computer script. The whole project has been inspired by Ben Krasnow who shared his precious project, computer side code and Teensy sketch which…
High vacuum pumping system revamped with new turbomolecular pump
Uncle SEM was equipped with a diffusion pump (DP) which had the task to pump the chamber down to high vacuum around E-6 Torr. Oil Diffusion Pumps Oil diffusion pumps have some nice pros, like being completely free from mechanical parts making them vibration free, easy maintenance (cleaning and oil refill every 2-3 years in…
New rotating specimen stub holder for my SEM
Uncle SEM was equipped with two different specimen holders when he joined the crew: one could only hold one 10 mm specimen stub and the other one was designed to hold bigger samples inside a 26mm wide plate. Unfortunatly, the bigger holder is centered under the objective aperture, so that it was impossible to just…
Plasma sample metallizer for SEM imaging
Non conductive, dry, specimens require to be coated with a thin (5-20nm) layer of metal in order to avoid charge-up image defects and to be correctly visualized. Metallizers from lab suppliers are very expensive (10.000/25.000€) and out of an enthusiast budget. They are also hard to find second hand, at least within Europe, and still…
Jeol JSM T-100 Scanning Electron Microscope
Things getting serious with my new Electron Microscope!
Need for Science 