STEM Counting
STEM Counting - images with counted electrons in every pixel
STEM Counting is a powerful technique widely employed in the fields of materials science and nanotechnology. It used for characterizing nanoparticles, studying crystal defects, and imaging biological specimens at the atomic scale.
Our STEM counting system enables to produce images with calibrated units of individual electrons, ensuring a true zero background level and minimal noise, thereby enhancing the precision and reliability of measurements.
The system consists of hardware, and software.
Our STEM Counting solution
Our STEM Counting solution includes the following system components:
turboTEM PULSE
REVOLON TEM Scan Controller
Scan Control Software
Microscope Data app (DIPS6)
Hardware needed to count electrons
REVOLON Scan Controller
- Manages synchronization
- Acquires analog and digital signals
- Manages digital scan patterns
- image size, acquisition time
- digital rotation, zoom, offsets
PULSE Processor
- Converts analog detector signal into digital pulses
- Separates electron pile-ups into single pulses
point electronic provides STEM Counting as system solution, consisting of turboTEM PULSE processor and point electronic REVOLON TEM Scan Controller:
REVOLON TEM Scan Controller
- Integrated scan generator and image acquisition
- Large pixel resolution and high scanning speed
- Second stage digital amplification for EA
- Simultaneous BF, HAADF and EA inputs
Pulse digitiser
- Produces quantifiable signals with true zero dark level and pure Poisson noise.
- Acts alongside existing detectors for simultaneous acquisition of signals.
- Features two or four channels for electron counting on separate detectors.
Scan Control Software
- Gives open and independent access to scan parameters and hardware synchronisation
- Displays and saves live images with all simultaneous signals
- Uses advanced scan modes, including sub-pixel and chopping
- Integrates easily with Python with remote network control
Microscope Data app (DIPS6)
- Versatile image processing app
- Viewer of all image signals and metadata tags
- Selection of pseudo-colour profiles
- Full quantification of pixel values
- Layered colour view of signals