#electronmicroscope

COVID-19 and Ireland – Part 23 ~Part 1~ According to the science of virology, viruses are generally too small to be seen with an optical microscope. Although there are some exceptions to the rule, most

... are many ways do this. One way is by isolating a suspect section, which is what I have just done. What you see is the upper objective and beam forming section hanging from the gun. I had separated

Stage from an old Philip's EM 300 or 301, interchangeable from what I know. The two large cylinders protruding from top and bottom are the specimen exchange airlock/goniometer and the "ear" for

Over 10 years jerking around these things and proud to say I have never damaged a pole piece, seen a few wrecked in the field tho 🤣😂. Usually dropped by a poorly trained FSE. Pole piece is the shiny

A well centered Tungsten filament sitting just below a Platinum aperture in the Wehnelt Cylinder. In the second picture you can see the filament alone, and the tip of the wire "loop" is the small

Hello old friend! I mean, old beast. 300 Kilovolt Transmission Electron Microscope made by Philips. It seems to have a beam obstruction. Now I have to inspect each section by disassembly. This is actually

Video - Click on the Image to Play Just playing with the controls on this scope. Been repairing and testing PCBs lately, prefer to have 3 of everything in stock. When most fail it's pretty obvious but

Figure 1: Column valve assembly as seen from the bottom side so its working mechanism can viewed. Moving on down the column, the next component to tackle is the aluminum column valve assembly, which looks

Figure 1. Gun alignment coils, only two are visible here. New to this? For part one go to: Amray-scanning-electron-microscope-complete-optics-and-stage-disassembly-part-1 Next section to remove is the

Fig 1. Looking inside the AMRAY SEM stage. We have had this ~70s vintage AMRAY 1000 (I think) SEM Column and Chamber sitting around taking up space for a while. I have been meaning to disassemble it for

Today I come across a sliced in half lens from a FEI 300kV FEG STEM. In other words a 300,000 volt Field Emission Generator Scanning Transmission Electron Microscope (More on that in a bit). I have not

This is TEMmy, our parts testing and validating Transmission Electron Microscope at work. He can help you see things way smaller than you can with his special eyes :-p. If you are not familiar with Electron

... completed polishing to a mirror finish. Next I will sonicate it in a few solvents to clean the polish off. The Anode attracts electrons from the gun down through the hole in the middle down to the

The EM201 made its first appearance around 1972. It had a eucentric stage (specimen height is on the same tilt axis of the goniometer stage), used a tungsten filament and under the right conditions could

This high voltage connector, AKA High Tension Connector was a behemoth. At its smallest it was about 5" in diameter. The other end goes to a big high tension tank, about the size of a refrigerator.

I have the voltage set to only 40kV, and the HT light turns on which is good. Next, I slowly turn up the filament, and you can see the beam slowly appear. Unfortunately the scope is really out of alignment

Figure 1- Beam! A bit distorted, among other problems. Looks like the condenser stigmators are messed up. Hopefully just bad regulators or Digital to Analog Converters (DAC). Progress has been magnificent

Figure 1 - Upper condenser lens from a JEOL 6320 Scanning Electron Microscope. Figured some of you would like to see this. Every Electron Microscope made today and the past several decades use electromagnetic

God's Eye, what we call the filament structure and surrounding halo of electrons from the Gun aperture of a Transmission Electron Microscope. I tweaked the image with a yellow filter to bring out the halo.