THE PROBLEM OF CONVOLUTION IN THE SIMULATION OF MULTICRYSTAL X-RAY ROCKING CURVES OF SEMICONDUCTOR-MATERIALS

The instrumental effects in theoretical simulations of multicrystal X- ray rocking curves are commonly taken into account by convolution with a function describing the beam optics used for the experiments. If di spersive geometries are used (e.g. Bartels-type monochromators), the c onvolution calculation is rather heavy, while for non-dispersive geome tries (parallel configurations) the calculation is much simpler. In bo th cases, the rocking-curve simulation is time consuming. Here two dif ferent approaches are reported, which enable one to make data elaborat ion fast and reliable for any multicrystal diffractometer and Bragg re flection.