ADF Calibration for High-precision Quantitative STEM

Precise quantification of HAADF STEM data requires accurate mapping of the ADF detector┬ásensitivity as well as calibration of the microscope’s amplifier.

ADF Detectors

Detector maps recorded at varying beam and amplifier settings

The image above shows a series of ADF detector maps recorded at various beam and amplifier settings to determine the optimum instrument operating conditions to achieve the most precise quantitative HAADF STEM data.