The new instrument, a JEOL JXA-8230 equipped with LaB6 electron gun, was installed in March 2016, and has been fully operational and open to internal and external users since September 2016.

A vacuum provides the needed insulation to prevent "arching" or jumping of high voltages in the electron gun. The gun itself is under extremely high vacuum conditions, requiring a pressure as low as ...

All color TV’s shoot three electron guns at a phosphor screen. Typical color TVs use a shadow mask — a metal sheet with tiny holes cut out. The holes ensure that the electron guns hit only ...

The main platform showcases an electron gun, encased within a glass jar that is further encased within a metal mesh to prevent the glass from spreading too far in the event of an implosion.

When the bottom-right corner was reached, the electron gun was returned to the top-left corner, known as the "vertical retrace." For TV signals, these "flyback" periods in which the electron beam ...

An electron gun at the bottom fires high-energy electrons, which are refined by lenses and an aberration corrector for precision. These electrons either pass through or interact with the sample, ...

At the top is the electron gun, which emits a focused electron beam that strikes the specimen. The specimen, typically a crystalline material, is mounted at a specific angle to optimize the ...

The tube has graphite and aluminum foils mounted on a grid between the electron gun and the screen of the tube. The path of the electron beam may be varied so that the beam passes through one of the ...