Simulation of high pressure diffraction pattern

This applet simulates composite diffraction patterns of materials under high pressure. It assumes a monochromatic x-ray beam. You can choose the energy (the wavelength), pressure, and list of materials you're looking at and it will calculate the corresponding diffraction pattern.

If you wish, you can also add a experimental pattern for comparison. I should be in CHI format (created by Fit2d for instance). You can also add your own materials to the list: the program can read JCPDS cards, version 4, with high pressure data.

There is a small database of materials included in the applet. If you find any error, or want to add a card to the database, just drop me an email and I'll be very happy to do so.

The applet will need a recent version of java to run. On a mac or most linux distributions, it should be no problem. On windows, it depends on your installation of java. If the applet doesn't show up, you probably have to upgrade. Have a look at for more details.

To start the applet, click on the screenshot!

Sebastien Merkel, 02/2006

© Sébastien Merkel, Université Lille 1, France

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