X-ray Diffraction Made Tangible

Single-crystal x-ray diffraction is perhaps the most important tool for determination of crystal structures. It is therefore important to engage students in diffraction techniques. Demonstration of diffraction techniques, however, is hindered by invisibilities. Both the atoms and the x-ray radiation used to find them are invisible to the naked eye. Addressing these problems, we have developed a tool, a 3D model, with naked-eye visible model atoms. It produces visible-light diffraction patterns, recognizably similar to the x-ray diffraction patterns of the original crystal. We will discuss and demonstrate our tool, that, in a typical class-room setting, may enlighten students of any level.