Gatan DIFPACK Module

Features:

• Provides simple and accurate measurements of lattice spacings and the angle between two sets of lattice planes
• Automatically tracks all measurements in different images and provides output which can be easily exported to any word processor or plotting applications
• Ideal tool for performing high precision magnification calibration
• Accurate peak location - Automatic peak search and refinement to sub-pixel accuracy through the use of center of mass calculation (for diffraction patterns) and interpolation (for diffractograms)
• Improved diffractogram - Calculation of the diffractogram of a lattice image is preceded by masking in real-space to eliminate streaking and improve measurement accuracy
• Optimised calibration - Calibrations are automatically transferred between image and its diffractogram
• Center location - Center of diffraction pattern can be automatically located using a cross-correlation technique (for centro-symmetrical patterns) or be determined manually from a pair of spots located symmetrically about the central spot
• Background thresholding - Background noise can be automatically distinguished from dim spots through the use of an empirically determined threshold parameter