Presentation Animations

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03 Nuclear Science Fundamentals

Add or remove protons, neutrons and electrons to build atoms and discover isotopes.

Explore Uranium Isotopes

Compare U-235 and U-238 structures and understand isotope differences.

Trigger Radioactive Decay

Watch alpha, beta and gamma decay happen in real time.

Trigger Fission

Fire a neutron at a U-235 nucleus and watch it split.

Chain Reaction with Control Rods

Adjust the multiplication factor and control rod position to manage a chain reaction.

Neutron Moderation

See how moderators slow fast neutrons to thermal speeds.

Temperature Feedback

Explore how temperature affects reactivity through Doppler broadening.

Balance the Nucleus

Adjust protons and neutrons to find stable nuclear configurations.

04 How Reactors Work

Trace the energy conversion process from fission to electricity.

Different Heat Sources, Same Process

Compare how different fuels all produce electricity the same way.

Fuel Assembly Explorer

Explore the structure of a nuclear fuel assembly from pellet to bundle.

Thermal Feedback

See how temperature changes affect reactor power output.

Control Rods & SCRAM

Insert and withdraw control rods, and trigger an emergency shutdown.

PWR Power Circuit

Follow coolant through the primary and secondary loops of a pressurised water reactor.

05 Reactor Types

UK Reactor Timeline

Explore the history of reactor generations in the UK.

Reactor Cutaway Comparison

Compare internal layouts of different reactor types side by side.

Refuelling Comparison

See how on-load and off-load refuelling processes differ.

EPR's Fourth Layer of Protection

Explore the EPR's defence-in-depth safety barriers.

06 Fuel Cycle & Waste

The Nuclear Fuel Cycle

Toggle between once-through and closed fuel cycles. Click stages to learn more.

Inside a Fuel Pellet

Drag the slider to change enrichment and watch the U-235 proportion change.

Sustain a Chain Reaction

Set enrichment and fire neutrons to sustain a chain reaction as long as possible.

Decay Heat Over Time

Drag the timeline to see how decay heat output changes after shutdown.

Plutonium Breeding

Watch U-238 absorb a neutron and transform through beta decay into Pu-239.

The PUREX Process

See how spent fuel is chemically separated into reusable components.

Drag each item to the correct waste classification category.

07 Radiation Protection

The ALARP Triangle

Click each zone to explore intolerable, tolerable and acceptable risk levels.

Inverse Square Law

Drag the worker to see how distance affects radiation dose rate.

Half-Value Layer Shielding

Toggle shielding layers and change materials to see gamma attenuation.

Adjust exposure parameters and see the dosimeter reading change.

© The Nuclear House — TNH Academy