diffract001.bmp

IdealMicroscope©

IdealMicroscope© is a unique integrated software environment for drawing crystal structures, transmission and backscattered electron diffraction patterns and stereograms. It performs many crystallographic calculations and assists indexing patterns. Unlike other software, IdealMicroscope is interactive - you can watch changes in patterns as you manipulate tilts and other simulated microscope controls. The program is invaluable for indexing electron diffraction patterns or HOLZ lines, for drawing and rotating crystal structures, transforming cells, finding (and converting) X-ray and electron structure factors and excitation errors, examining three-dimensional reciprocal lattices, obtaining projections of structures, measuring interatomic distances and a host of other operations. A powerful calculator is included for common electron and x-ray crystallographic computations. IdealMicroscope Details


Bloch

The Bloch program was developed for simulation of dynamic electron diffraction and convergent beam electron diffraction patterns. It takes crystal structure and diffraction condition as input parameters and calculates the eigenvalues and eigenvectors of electron Bloch waves. The simulation of diffraction pattern is actually accomplished by a separate program called CBEDP. The output of Bloch program can also be used to simulate high resolution electron images and electron probe propagation in scanning transmission electron microscopy. There are two versions, one is for a PC runing Linux OS and the other for MS-Windows. In both operating systems, the program runs in the command shell. Bloch Details


Quantitative Electron Diffraction (QED)

The QED program is designed for quantitative analysis and simulation of electron diffraction patterns. The program comes with a basic package for displaying and simulation of selected area and convergent beam electron diffraction patterns for crystals using kinematical approximation. The optional packages (installed separately) include 1) analysis of high-order Laue zone lines (HOLZ) 2) radial distribution function analysis of amorphous and nano-crystalline materials 3) simulation of electron diffraction patterns by dynamic diffraction. The program uses a command window for calling/executing functions in the program and a graphics display for interactive processing and feedback (see product deatils). The command window uses the DOS interface. Some knowledge of DOS commands is assumed for using QED program (For users unfamiliar with DOS, google introduction to DOS for a number of helpful writeup's for DOS. The most commonly used commands for QED are, cd, copy, del, rename, and dir). Interaction with display is achieved through the use of a mouse pointer. A basic model with at least two buttons (right and left clicks) is required. QED Details
 

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