Electron-Atom Interactions

Electron–atom interactions are central to astrophysical and laboratory plasmas, lighting, and accelerator-based experiments. I compute differential and integrated cross sections, effective collision strengths, and emission properties using relativistic close-coupling and distorted-wave formalisms, and validate them against measurements where available.

Recent focus areas include:

• Vortex-electron induced excitation beyond the Born approximation
• Relativistic electron-impact excitation of heavy atoms and ions (e.g., Bi, Xe charge states)
• Atomic cascade modelling for interpreting spectral line intensities
• Target-in-matrix and solid-state environment effects on scattering
• Reference datasets for plasma diagnostics and EUV sources

Current Projects

I am currently working on:

• Generalized treatments of inelastic scattering by vortex electrons
• Accurate effective collision strengths for plasma modelling using JAC
• Benchmarking cascade effects on diagnostically important lines

Experimental Collaborations

I collaborate closely with experimental groups to test theoretical predictions and design new experiments to probe topological phases. These collaborations involve:

• Design of new materials with topological properties
• Development of experimental probes to detect topological invariants
• Analysis of experimental data to identify signatures of topological phases