Dave Mitchell's DigitalMicrograph™ Scripting Website

Function

Computes the theoretical resolution of EFTEM images as a function of objective semi-angle, on the basis of the followiing microscope parameters: accelerating voltage, Cc, slit width and energy loss.

Version

version:20111122, v1.0

Author

D. R. G. Mitchell

Acknowledgements

Equations are drawn from the review of EFTEM methods by Thomas and Midgley (Topics in Catalysis, 21(2002)109).

Comments

Changing any value will display or update the resolution plot. Hold down ALT key to preserve the previous plot and create a new one. Shift and Control modify the response of the + and - buttons. To change the dialog's default values, set them to the desired value then close the dialog with the ALT key held down. Default values are stored in the Global Info under the EFTEM Calculator tag group. Delete this tag group to restore the default values.

System Requirements

Should be compatible with all recent versions of DigitalMicrograph. Tested on GMS 1.8.4 and 2.1 running under XP. Performance under Vista/Windows 7 is unknown - please advise if issues are encountered.

Known Issues

-

Supported

Yes.

Included Files

Single script file.

Source Code