Topher Matthews is a scientist and nuclear engineer with 11 years of experience applying multi-scale, multi-physics modeling to fuel performance for both metallic and oxide nuclear fuels at Los Alamos National Laboratory. He focuses on advancing fast reactor technology and fuel recycling through phenomenological models and computer simulations aimed at lowering costs and risks of fission energy. His work bridges theory and practice—from fission gas bubble modeling during his PhD at Oregon State to operational reactor experience as a reactor operator—and emphasizes materials-driven solutions to make nuclear energy more acceptable and economical. An active contributor to open-source simulation tooling, he has improved testing and backend reliability in the widely used MOOSE multiphysics framework. Based in Los Alamos, he combines deep technical rigor with an eye toward public perception and risk reduction as levers to scale low-carbon nuclear power.
11 years of coding experience
6 years of employment as a software developer
California Polytechnic State University, San Luis Obispo
Doctor of Philosophy (Ph.D.), Nuclear Engineering, Doctor of Philosophy (Ph.D.), Nuclear Engineering at Oregon State University
Contributions:280 reviews, 371 commits, 178 PRs in 5 years
Contributions summary:Topher made several contributions to the `idaholab/moose` repository, primarily focused on enhancing the testing framework. This included enabling the use of `gold_dir` within `CSVDiff` and adding new tests to cover aspects of code functionality. Furthermore, the user demonstrated proficiency in handling and integrating new class inheritance with the aim of better testing and providing more effective results.
Contributions:20 PRs, 87 pushes, 8 branches in 7 months
clusterbubblekinetics
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Topher Matthews - Scientist at Los Alamos National Laboratory