ReactorMC
Educate · Practice · Create
A student primer for MCNP, OpenMC, SERPENT, and SCONE — fundamental concepts so you can get a first model running. Official manuals remain the authority; this site is not a substitute for them.
- tutorial pages
- 100+ tutorial pages
- Monte Carlo codes
- 4 Monte Carlo codes
- PNNL materials
- 411 PNNL materials
- reactor database
- 52 reactor database
- editor products
- 3 editor products
TUTORIALS
Monte Carlo education hub
Structured lessons from first input to a running model, written so students can get off the ground. They are not primary reference material — cite the vendor manuals when a card or API disagrees with a tutorial.
Start learning// NRDP
Nuclear reference data portal
Evaluated cross sections, material cards, and reactor parameters — copy-paste ready for all four codes.
Software division of ReactorMC
GROVES, OWEN, and NICHOLS — plus browser demos for cross-code conversion and 3D geometry preview. MCNP workspace validation in OWEN and GROVES. Fully offline desktop option for air-gapped workflows.
New here? Start with this path
Four steps from zero to a running reactor model — each one links straight into the site.
Learn the physics
Monte Carlo fundamentals: transport, tallies, statistics, and variance reduction.
02Pick your code
MCNP, OpenMC, SERPENT, or SCONE? Compare licensing, workflow, and strengths.
03Run a pin cell
Build your first criticality model with a worked PWR pin-cell example.
04Equip your editor
Add syntax highlighting, validation, and lattice builders with GROVES, OWEN, or NICHOLS.
Who we are
ReactorMC is built by a small editorial team. More about sources and licensing is on the attribution page.
Brian Kiedrowski
Director
Associate Professor, University of Michigan
Aaron Calhoun
Founder & Lead Author
NE, West Point, '24
Owen Koster
Co-Founder & Editor-in-Chief
NE, West Point, '24
Latest additions
Recently shipped across the tutorial, data, and software sides of ReactorMC.
NRDP terminal revamp
The whole reference portal rebuilt on a dark reference-terminal theme with a unified hub.
NRDPPNNL compendium — 411 materials
Full PNNL-15870 Rev. 2 with generated MCNP, OpenMC, Serpent & SCONE cards.
SoftwareNICHOLS v1.0.0
Sublime Text & Notepad++ packages: syntaxes, completions, and 4 color schemes.
NRDPALLEN Doppler Studio
Multi-temperature resonance broadening with self-shielding and resonance integrals.
SoftwareOWEN 3D preview (browser)
Paste deck input, orbit a pin lattice, slice planes, and fullscreen — client-side.
SoftwareCross-code converter
MCNP↔OpenMC stable in the browser and in OWEN v1.4.6 — Rosetta diff in the IDE.