Knowledge base · pilot
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An open knowledge base on compact, low-neutron fusion — the physics, the engineering, the economics, and the open questions behind Kronos MetroVolt and AEGIS. Every number is the published design point, backed by an open 81-simulation record (DOI 10.5281/zenodo.21248916).
Concept encyclopedia · 120
Concept
Negative TriangularityConcept
Bootstrap FractionConcept
The Greenwald Density LimitConcept
Safety Factor (q₉₅)Concept
Hot-Ion ModeConcept
TokamakConcept
DeuteriumConcept
Helium-3Concept
TritiumConcept
Bremsstrahlung RadiationConcept
Synchrotron RadiationConcept
Plasma Beta (β)Concept
Elongation (κ)Concept
The DivertorConcept
Edge-Localized Modes (ELMs)Concept
H-mode and L-modeConcept
Aspect RatioConcept
Magnetic ConfinementConcept
StellaratorConcept
Plasma DisruptionConcept
Resistive Wall Mode (RWM)Concept
The Troyon Beta LimitConcept
Scrape-Off Layer (SOL)Concept
Hafnium Carbide First WallConcept
Fast-Ion Channeling (P6)Concept
Neutron ActivationConcept
Wright's LawConcept
Plasma Current (I_p)Concept
Plasma HeatingConcept
Fusion Gain (Q)Concept
Engineering Gain (Q_eng)Concept
Ignition vs Driven OperationConcept
Catalyzed D–D Fuel CycleConcept
Fusion Power DensityConcept
Fusion NeutronicsConcept
Magnet Quench & ProtectionConcept
Cryogenics & Magnet CoolingConcept
Capacity FactorConcept
Gyrokinetic TurbulenceConcept
Alfvén Eigenmodes (TAEs)Concept
The Kink InstabilityConcept
Runaway ElectronsConcept
The Plasma PedestalConcept
Neoclassical TransportConcept
Gyroradius & ρ*Concept
Toroidal Field CoilsConcept
The Center StackConcept
Demountable MagnetsConcept
The Neutron ShieldConcept
Plasma-Exhaust MHD GeneratorConcept
Thermionic Energy ConversionConcept
Photonic Energy CaptureConcept
The Carnot LimitConcept
The Main Fusion ReactionsConcept
Helium Ash & ExhaustConcept
The Staged Fuel CycleConcept
The Vacuum VesselConcept
Balance of PlantConcept
The Super-X DivertorConcept
Plasma DiagnosticsConcept
The Central SolenoidConcept
The S.M.A.R.T. ArchitectureConcept
The Gate Program (G1–G3)Concept
The Falsifiable SevenConcept
The Digital TwinConcept
Open Data & ReproducibilityConcept
The Graded Winding PackConcept
Wall Loading & Heat FluxConcept
Displacements Per Atom (dpa)Concept
Tritium Inventory & SafetyConcept
The Sawtooth InstabilityConcept
Steady-State OperationConcept
The Fusion Triple ProductConcept
Plasma Rotation & Flow ShearConcept
Magnetic IslandsConcept
Neutral Beam Injection (NBI)Concept
Inertial Confinement FusionConcept
Remote MaintenanceConcept
Fusion & DecarbonizationConcept
Pellet FuellingConcept
Error Fields & CorrectionConcept
Water Use & SitingConcept
Ion & Electron TemperatureConcept
Plasma Density & FuellingQuestions people ask · 90
Question
Where does helium-3 come from?Question
Is fusion power safe?Question
What is a spherical tokamak?Question
What is nuclear fusion?Question
How hot is a fusion plasma?Question
What fuels does fusion use?Question
What is Kronos Fusion Energy?Question
Is Kronos fusion aneutronic?Question
Can fusion power a data center?Question
Is tritium dangerous?Question
What is AEGIS used for?Question
How can I partner with Kronos?Question
How does a tokamak work?Question
What is plasma?Question
Does fusion use lasers?Question
Can fusion really work on Earth?Question
How does Kronos compare to ITER?Question
Does fusion produce any CO₂?Question
What does 'low-neutron' mean?Question
How strong is a 24-tesla magnet?Question
What is firm power?Question
What is a burning plasma?Question
Is fusion better than fission?Question
What if the magnets fail?Question
Why does fusion energy matter?Question
How does Kronos's business work?Question
Why compact fusion?Question
What is a fusion pilot plant?Simulation register · 81
Simulation register
S01 — Systems-code self-consistent point designSimulation register
S02 — Independent systems cross-check (FUSE)Simulation register
S03 — Free-boundary baseline equilibriumSimulation register
S04 — Equilibrium variants (Mode B; q95≥5.5)Simulation register
S05 — Startup / ramp flux demandSimulation register
S06 — Radial-build consistencySimulation register
S07 — POPCON operating-space mapSimulation register
S08 — Monte-Carlo UQSimulation register
S09 — Sensitivity / tornadoSimulation register
S10 — Cross-code reconciliation ledgerSimulation register
S11 — Gyrokinetic turbulence (linear→nonlinear, EM, fast species)Simulation register
S12 — Gyrokinetic turbulence (linear→nonlinear, EM, fast species)Simulation register
S13 — Gyrokinetic turbulence (linear→nonlinear, EM, fast species)Simulation register
S14 — Gyrokinetic turbulence (linear→nonlinear, EM, fast species)Simulation register
S15 — Gyrokinetic turbulence (linear→nonlinear, EM, fast species)Simulation register
S16 — Quasilinear profile prediction (TGLF)Simulation register
S17 — QL cross-check (QuaLiKiz)Simulation register
S18 — Integrated transport — H98 gateSimulation register
S19 — Time-dependent burn scenarioSimulation register
S20 — NT confinement-scaling placementSimulation register
S21 — Ideal MHD no-wall kinkSimulation register
S22 — Ideal MHD with-wallSimulation register
S23 — Ballooning/Mercier 2nd-stabilitySimulation register
S24 — Vertical stability + VDESimulation register
S25 — RWM with rotation + kineticSimulation register
S26 — Hot-ion two-fluid balanceSimulation register
S27 — Fast-ion slowing-down (protons)Simulation register
S28 — Fast-ion slowing-down (alphas)Simulation register
S29 — Alfvén-eigenmode stabilitySimulation register
S30 — Disruption + runawaySimulation register
S31 — Disruption EM loadsSimulation register
S32 — SOL/divertorSimulation register
S33 — NT density limitSimulation register
S34 — Pedestal/edge gradientSimulation register
S35 — 3-D neutronicsSimulation register
S36 — Inboard shield optimization (B4C vs WC/W2B5)Simulation register
S37 — REBCO fast-neutron fluenceSimulation register
S38 — Nuclear heating in cold massSimulation register
S39 — Activation / shutdown doseSimulation register
S40 — Tritium inventory + DIR sensitivitySimulation register
S41 — Tritium inventory + DIR sensitivitySimulation register
S42 — Staged fuel self-sufficiencySimulation register
S43 — Prompt-3He breedingSimulation register
S44 — Fuel-mix Pfus sensitivitySimulation register
S45 — D-D chain / fleet logisticsSimulation register
S46 — D-D chain / fleet logisticsSimulation register
S47 — Winding-pack EM-structural (24.6 T, R_c=1.40)Simulation register
S48 — Quench / dumpSimulation register
S49 — Demountable joint budgetSimulation register
S50 — Cryoplant loadSimulation register
S51 — DEC exhaust fraction (Apollo objection)Simulation register
S52 — Cusp expander orbitSimulation register
S53 — TWDEC PIC efficiencySimulation register
S54 — Venetian-blind collectorSimulation register
S55 — MHD/thermionic/PV boundingSimulation register
S56 — sCO2 BraytonSimulation register
S57 — Plant power-flow SankeySimulation register
S58 — N+1 reliabilitySimulation register
S59 — HVDC export / grid dynamicsSimulation register
S60 — HVDC export / grid dynamicsSimulation register
S61 — Adaptive DEC re-weightingSimulation register
S62 — FBG structural-health monitoringSimulation register
S63 — LCOE / required-PPA MCSimulation register
S64 — Economics tornadoSimulation register
S65 — DEC exhaust on closed field lines (extends S51)Simulation register
S66 — Two-point divertor / detachment (extends S32)Simulation register
S67 — TAE drive from fusion products (extends S29)Simulation register
S68 — Activation / shutdown-dose bound (extends S39)Simulation register
S69 — Final-size vertical rerun at κ=2.56 (extends S24)Simulation register
S70 — Quench hot-spot MIITs — 30 T bounding case (extends S48)Simulation register
S71 — Per-fuel DEC conversion (§4.5 / Table 24)Simulation register
S72 — Fast-ion channeling requirement (§2.8 / P6)Simulation register
S73 — Aneutronic-endpoint system closure (§4.7)Simulation register
S74 — Lengyel impurity-seeding detachment windowSimulation register
S75 — Guiding-centre orbit exhaust fractionSimulation register
S76 — Integrated 0-D systems codeSimulation register
S77 — Negative-triangularity δ-scanSimulation register
S78 — Toroidal-field (B0/R_c) leverSimulation register
S79 — Robustness & upgrade envelopeSimulation register
S80 — Operating-window mapSimulation register
S81 — Low-neutron lifetime dividendComparisons & deep-dives · 109
Comparison
D–³He vs D–T FuelComparison
Negative vs Positive TriangularityComparison
Spherical vs Conventional TokamakDeep-dive
The 24.6 Tesla Magnet SystemApplication
Firm Fusion Power for Data CentersComparison
D–³He vs p–¹¹B FuelComparison
Tokamak vs StellaratorComparison
Direct Conversion vs the Steam CycleComparison
HTS vs LTS MagnetsComparison
Fusion vs GeothermalComparison
Fusion vs Small Modular ReactorsComparison
Compact vs Conventional FusionComparison
Magnetic vs Inertial ConfinementDeep-dive
Deep Dive: The Multi-Modal DEC TrainDeep-dive
Deep Dive: The Confinement CaseApplication
Fusion for Industrial Process HeatApplication
Fusion for Green HydrogenApplication
Fusion for DesalinationComparison
Fusion vs CoalComparison
Fusion vs WindComparison
Fusion vs Battery StorageComparison
Fusion vs HydropowerComparison
D–³He vs D–DComparison
Private vs Public FusionDeep-dive
Deep Dive: The Hot-Ion PostureDeep-dive
Deep Dive: The Open QuestionsDeep-dive
Deep Dive: The AI-Native PlantDeep-dive
Deep Dive: Disruptions & SafetyApplication
Fusion for AI ComputeApplication
Fusion for Remote MicrogridsApplication
Fusion for Defense InstallationsComparison
Fusion vs Natural GasComparison
Fusion vs SolarComparison
Firm vs Intermittent PowerComparison
Helium-3: Terrestrial vs LunarComparison
Baseload vs Dispatchable PowerDeep-dive
Deep Dive: The Gate ProgramDeep-dive
Deep Dive: The Plant Power FlowDeep-dive
Deep Dive: The Divertor ChallengeDeep-dive
Deep Dive: Current Drive & BootstrapDeep-dive
Deep Dive: Neutronics & ActivationApplication
Fusion for District HeatingApplication
Fusion for Synthetic FuelsApplication
Fusion for ShippingComparison
Deuterium vs TritiumComparison
Fusion vs AntimatterComparison
Tokamaks vs Alternative ConceptsComparison
Copper vs Superconducting MagnetsComparison
Fusion Fuel vs Fission FuelDeep-dive
Deep Dive: Plasma-Facing MaterialsDeep-dive
Deep Dive: MHD StabilityDeep-dive
Deep Dive: The ³He Mass BalanceApplication
Fusion for MiningApplication
Fusion for Direct Air CaptureApplication
Fusion for Developing EconomiesApplication
Fusion & the Electrification of EverythingApplication
Fusion for Water TreatmentComparison
Steady-State vs Pulsed OperationComparison
Fusion vs Fission SafetyComparison
High vs Low Aspect RatioComparison
Why Kronos Skips D–T-FirstComparison
The Compact-Fusion LandscapeDeep-dive
Deep Dive: Cold Start to GridDeep-dive
Deep Dive: The Fusion Pilot PlantDeep-dive
Deep Dive: The p–¹¹B EndpointApplication
Fusion for Space PropulsionApplication
Fusion for Heavy IndustryApplication
Fusion for Green AmmoniaComparison
DC-Native vs AC OutputComparison
One Large Plant vs Many SmallComparison
Fusion vs Enhanced GeothermalDeep-dive
Deep Dive: Fuelling & ExhaustDeep-dive
Deep Dive: The Cryogenic SystemDeep-dive
Deep Dive: The Vacuum SystemDeep-dive
Deep Dive: Tritium & Fuel ProcessingApplication
Fusion for Island NationsApplication
Fusion for EV Charging NetworksApplication
Fusion for Grid ResilienceComparison
Fusion vs Space-Based SolarComparison
Fusion Generations: D–T, D–³He, p–¹¹BComparison
Firm Clean Power Options ComparedDeep-dive
Deep Dive: What First Plasma MeansApplication
Fusion for District CoolingApplication
Fusion for Disaster ResponseApplication
Fusion for Arctic & Extreme EnvironmentsApplication
Fusion for Hydrogen HubsApplication
Fusion for Campuses & MicrogridsApplication
Fusion for Metals & SmeltingApplication
Fusion & AviationApplication
Fusion for Ports & Logistics HubsApplication
Fusion for Critical InfrastructureApplication
Fusion for Space HabitatsTeam & expertise · 4
Founding partner
Dr. Gerald KulcinskiFounding partner
Dr. Carl WeggelFounding partner
Dr. Robert J. WeggelTeam & expertise
The Fusion Hardware Behind Kronos's Founders