Loïc Magnan - AI & Nuclear Engineer

Solving hard problems with AI.

ATLAS

Designer and Developer

ATLAS is the proprietary intelligence layer for Subcritical Systems.
I built the second generation of ATLAS, with 3D capabilities, project planning, and EPC functionality.
This system is now functional and managed by 5 people.

Taurus

Co-Developer

Taurus is an algorithmic trade origination, execution, and risk management platform.
It has comprehensive front, middle, and back office agentic systems.
The system incorporates data feeds, web scrapers, Graph RAGs, multiple agents with constitutions, and proprietary DCF and Black–Scholes models to screen options.
Currently, it is actively managed; the cash-settled put and covered call trades are the best performing feature.

Taurus trade timing view with an ANET price chart, statistical bands, dealer levels, and level-by-level analysis. — Trade timing

Taurus valuation table comparing market prices, house estimates, consensus targets, and implied growth. — Valuation

Taurus screening view showing SMCI price and moving averages alongside valuation, growth, and momentum scores. — Screening

NTP

Co-Author

I co-authored a paper about the regulatory feasibility of atmospheric testing of nuclear thermal propulsion rockets.
This is an end-to-end study including neutronics, erosion, and atmospheric dispersion.
We presented it at NETS 2026.

Read the paper on ResearchGate

Diagram of radionuclide release mechanisms and the study workflow, from neutronics and erosion modeling to atmospheric dispersion and dose analysis. — Study overview

Logarithmic plot of effective dose against coated fuel particle failure fraction, with temperature curves and a marked DOE dose limit. — Dose analysis

Cross-section of a hydrogen coolant channel with zirconium carbide cladding, coated fuel particles, and a graphite moderator. — Coolant channel

ADS

Research Contributor

I was responsible for the high-energy physics simulations using FLUKA for this accelerator-driven system neutronics study.
I also contribute to burnup analysis in Professor Kozlowski’s research group, studying how the fuel composition changes as the system operates.

Three-dimensional plot of volumetric heat generation from a 1 GeV proton beam as a function of radial and axial position. — Volumetric heat generation

FLUKA neutron source energy tally from 1 GeV proton spallation, plotted as a histogram of neutron energies. — FLUKA neutron source

Lead-based accelerator-driven system geometry and isotope composition, with a central proton beam and spallation target. — System design

Agentic System Research

Research in Progress

I am currently working with Dr. Ian Burgess at Ascendance Foundry and Prof. Matt Burgess at the University of Wyoming on research into multi-agent systems.
The goal of the study is to quantify entropy in multi-agent systems in order to develop a playbook for minimizing error.

Three events show an error entering a sub-agent's report, contaminating shared memory, and later returning as a working error when another question retrieves it. — Error propagation through shared memory

Model preview

e is the fraction of active work that is contaminated.

m is the fraction of memory that is contaminated.

\frac{d e}{d t} = α (1 - e) + γ m (1 - e) - β e

\frac{d m}{d t} = δ e (1 - m) - ε m

α: The rate of new mistakes in the work.
β: The correction rate of new mistakes.
γ: The rate at which contaminated memory causes active working errors.
δ: The rate at which wrong active work contaminates memory.
ε: The rate at which errors in memory are corrected.

CV

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Education

University of Illinois Urbana-Champaign

Expected May 2027

B.S. Nuclear Engineering

Power, Safety, and Environment (Fission).
GPA 3.91 · Dean’s List · American Nuclear Society

Experience

Subcritical Systems

May 2026 – Present

AI Engineering Intern

Built software connecting design reports, analysis tools, and facility geometry for an accelerator-driven subcritical power plant. Conducted accelerator shielding studies in Geant4. Handed off the engineering workflow to a team of five engineers.

Analysis of Reactor Transients and Stability

September 2024 – Present

Research Assistant · Prof. Kozlowski’s group

Burnup modeling, subcritical reactor economics, and the High Temperature Incandescent Reactor. Comparing data-center and flexible-load operation. Also training GPT-2 small models to study the effect of neural-network architecture on performance.

Center for Plasma-Material Interactions

October 2023 – September 2024

Lab Assistant

Studied stannane deposition on novel materials in high vacuum for ASML lithography applications.

Publications &
presentations

Nuclear Data Needs and Neutronics Analysis of XDS

April 2026

Wen, R., Fang, M., Magnan, L., Kozlowski, T., Di Fulvio, A.
Poster at the ARPA-E Energy Innovation Summit. Accelerator modeling in FLUKA; neutronics and burnup calculations in Serpent.

Regulatory Feasibility of Contemporary Atmospheric NTP Testing

May 2026

Erkiralp, D.C., Magnan, L., Kozlowski, T.
Accepted to ANS NETS 2026; presented at STARFIRE 2026. Serpent modeling and CAP-88 analysis of fission-product release and cladding erosion.