 The use of scintillating BSE detectors in ESEM is compatible with the GDD for simultaneous SE detection, in one way by replacing the top plane electrode with a fine tip needle electrode (detector), which can be easily accommodated with these scintillating BSE detectors.The needle detector and cylindrical geometry (wire) have also been extensively surveyed.Cathodoluminescence is another mode of detection involving the photons generated by the beam-specimen interaction.