Physicist/Scientist, X-Ray Source Modeling

What you'll do

• Simulate end-to-end electron optics including thermionic emission, space-charge-limited transport, and spot formation.
• Build coupled electrothermal models of beam power deposition on targets, apertures, and grids.
• Model X-ray generation, transport, spectral shaping, and detector response.
• Quantify model uncertainties through convergence studies and sensitivity analysis of material properties.
• Design and execute experiments to test models and discriminate between competing hypotheses.
• Translate simulation results into manufacturing decisions such as drawing tolerances and alignment budgets.
• Script and version simulation workflows to ensure parametric studies are reproducible.
• Mentor junior physicists and engineers in modeling practices and validation techniques.

What we're looking for

• MS or PhD in physics, applied physics, EE, ME, nuclear engineering, or a related field.
• At least 5 years of experience applying simulation to physical hardware.
• Demonstrated ownership of charged particle optics, thermal and structural analysis under high thermal load, or X-ray generation and optics.
• Fluency in finite element methods and working knowledge of boundary element, particle-in-cell, Monte Carlo radiation transport, or ray tracing.
• Proficiency in multiphysics tools like COMSOL, Opera, CST, ANSYS, Lorentz, FEniCS, or comparable via scripting interfaces.
• Proficiency in Python, C, or C++ for pre- and post-processing, data reduction, and optimization loops.
• Experience with version control and a track record of comparing model results to physical measurements.
• Experience with Monte Carlo radiation transport, X-ray optics simulation, or cathode and emission physics (preferred).