Simulating Energy-Dispersive X-Ray (EDS) Spectra in an Electron Beam Scan

Описание: In this animation, I show a simulated electron beam scanning across a sample one pixel at a time. As the beam moves, the plot on the right displays the EDS spectrum corresponding to the current beam position.

This lets us see how the X-ray signal changes as the beam encounters regions that are rich in different elements. By watching the spectrum evolve during the scan, we can visually connect features in the material to the peaks that appear in the spectrum.

Author: S. Gowda

~This animation was created for the EPS 109 course "Computer simulations with Jupyter notebooks" at the University of California, Berkeley: https://militzer.berkeley.edu/EPS109. It offers a general introduction to computer simulations for all science majors. Participants will use the Jupyter notebooks to perform calculations, design 3D graphics, and build on existing computer programs. No prior programming experience is required. The course teaches fundamental skills for scientists and helps students with future homework. It covers data processing techniques as well standard simulations methods including Monte Carlo and molecular dynamics. The algorithms are illustrated with a variety of applications in earth and planetary science as well as astronomy.