It stands to reason that modern STEM are in principle able to count the electrons they use for imaging. But they lack the ability to count single electrons – without additional equipment. Particle counting is an essential and enabling function for so many low-dose techniques.

The article in ‚Microscopy & Analysis‘ by Jonathan Peters (TurboTEM) and Grigore Moldovan (point electronic GmbH) describes a practical implementation of electron counting in STEM using a combination of the point electronic GmbH DISS6 scan generator and the turboTEM Pulse signal digitiser. Fully digital images presented live in real time to the user.

Read the full article here: How to count electrons in STEM?