Designing ultra-clean cryogenic instrumentation for rare-event searches.
PhD student at SUBATECH (Nantes) and UMass Amherst. I design, simulate, and operate detectors that push sensitivity for neutrino and dark matter experiments.
Research Highlights
Modeling ultra-trace electronegative impurities
Built purification and outgassing models for UHV systems and liquid xenon, established mitigation practices (throughput/RGA measurements, bake cycles, purges), and analyzed electron lifetimes.
Shielding and radioactive background pipelines
Ran large Monte Carlo campaigns for radioactive decays, automated TB-scale simulation/reconstruction, and modeled gamma attenuation to set collaboration-wide background budgets.
Designing cryogenic recirculation systems
Designed and tested HFE recirculation, LN2 heat exchangers, instrumentation/DAQ, Arduino-based slow controls, and custom PCBs for power, relays, and valve control.
Advanced Virgo mode-cleaner R&D
Assembled optical benches, simulated mode-cleaner cavities in Python/MATLAB, and performed alignment and noise characterization.
XENON/DARWIN ABALONE characterization
Characterized hybrid photosensors, built Geant4 optical models, and measured DAQ noise to evaluate detector performance.
Neutrino & dark matter sensitivity studies
Contributed to nEXO sensitivity work on solar neutrinos and fermionic dark matter, aligning background-free analyses with detector design constraints.
Impurity & background control
Purification/outgassing models, gamma attenuation, shielding design, and mitigation playbooks for low-background detectors.
Monte Carlo + analysis
Geant4/ROOT, MCNP, Python (NumPy, SciPy, pandas, Matplotlib, strax) with automated pipelines on SLURM/HPC clusters.
Cryo systems & controls
DAQ and slow controls, sensor integration (thermocouples, pressure, flow), Arduino-based readout, PCB design, and DIN-rail power/relays/valves.
Software toolkit
C++, Python, Bash; reproducible data pipelines; Linux/macOS/Windows; LATEX/Markdown documentation.
PCB & embedded builds
Arduino-based readouts, PCB design, relay/valve control, sensor integration, and power systems for lab instrumentation.
Teaching & outreach
Lectures, labs, and public talks; fluent in French/English; clear documentation to align collaborators and students.
Selected papers
- Supernova electron-neutrino interactions with xenon in the nEXO detector, Phys. Rev. D 110, 093002 (2024).
- Imaging of single barium atoms in solid xenon for barium tagging in a Xe-136 double beta decay experiment, Phys. Rev. Research 6, 043193 (2024).
- Sensitivity of nEXO to Xe-136 charged-current interactions: background-free searches for solar neutrinos and fermionic dark matter (2025, submitted).
- Ultra-pure nickel for structural components of low-radioactivity instruments (2025, submitted).
Sharing physics
- IMT Atlantique: C++ and Geant4/ROOT lectures and labs (2024–2025).
- IMT Atlantique CODEVSI: nuclear power plant modeling project supervision (2023–2024).
- Nantes Université: internship report reviews and juries (2023–2024).
- Talks: JED Angers, GDR DUPhy, JRJC, collaboration meetings, and outreach sessions.
- Science Festival demonstrations; outreach talk on pathways to a PhD.