Xenon-135 Transient Simulator
Iodine–xenon buildup and burnout after a power change. Watch the post-trip xenon peak build in, the dead time it forces, and whether a restart is precluded.
Decay Heat Calculator
Residual fission-product power after shutdown — the heat that keeps coming once the chain reaction is already gone. The reason a core still needs cooling long after scram.
Point Kinetics Simulator
Reactor period, startup rate, and the prompt jump from a reactivity insertion. Cross $1.00 and watch the period collapse into prompt criticality.
Spent Fuel Pool Heat Load Calculator
Total decay-heat load in a spent fuel pool, and how long it would take to boil if cooling stopped. Time-to-boil, boil-off, and fuel-uncovery — the numbers behind a loss-of-cooling event.
Commercial Grade Dedication Tool
Screen a commercial item as a basic component under 10 CFR 21, list its critical characteristics, and get the right acceptance method (1–4) for each — with an exportable CGD record.
Gamma Dose-Rate & Shielding Calculator
Point-source dose rate, HVL/TVL shielding, and stay-time for 22 gamma isotopes — medical, industrial, and reactor — with exportable results.
NQA-1 Checklist
Work through all 18 ASME NQA-1 Part I requirements, mark your program Compliant / Partial / Gap, capture notes, and export a readiness report — a fast self-assessment before an audit.
Enrichment SWU & Cost Calculator
Compute separative work (SWU), natural-uranium feed, and the full $/kg cost — feed, conversion and SWU — for any enrichment job, with a side-by-side HALEU (19.75%) vs LEU cost-premium comparison.