3-D Monte-Carlo neutron transport (OpenMC ENDF/B-VIII.0)

Name: BR-L1-A5 — 3-D Monte-Carlo neutron transport (OpenMC ENDF/B-VIII.0)
Creator: Kronos Fusion Energy
License: https://creativecommons.org/licenses/by/4.0/

BR-L1-A5reproducedverification card freeze 2026-08-27

What was computed

GPU fleet: 3-D MC balance clean: leakage 0.121, TBR 1.026, FW fast flux 7.0e14 n/cm2/s, heating 74.6 MW; 1.2e8 histories, OpenMC/ENDF-B-VIII.0

Reproduce this

# Reproduce BR-L1-A5 against the frozen record
pip install kronos-toolkit   # github.com/KronosFE/kronos-toolkit
python -c "from kronos_toolkit.verify import run_regression; run_regression()"
# BR-L1-A5 is anchored in the 2026-08-27 freeze spine (verdict: reproduced).

Sources

Read the paper (Paper 2.31) → Deposit — doi:22132200 Physics De-Risking Register (R0) All gates →