Generation IV International Forum (GIF) and 4^thgeneration systems
- General context, evaluation criteria, the six concepts selected.
- Increased performance for energy conversion: innovative cycles.
- Materials issues and development of advanced components.
- Safety aspects of 4^th generation reactor concepts.

Sodium-cooled Fast reactors (SFR)
- Principles, past and existing reactors, and background knowledge.
- SFR core design, performance and safety.
- The choice of sodium coolant: impact on design and operation.
- The ASTRID prototype reactor.

High Temperature and Very High Temperature Reactors(HTR and VHTR)
- Historical development of HTRs.
- HTR core physics.

Gas-cooled Fast Reactors (GFR)
- GFR core and system design, preliminary safety evaluation.
- The ALLEGRO demonstration reactor.

Lead-cooled Fast Reactors (LFR)
- Status of LFR development.

Supercritical Water Reactors (SCWR)
- SCWR principles, characteristics and challenges.

Molten Salt Reactors (MSR)
- Physics of MSR in the thorium fuel cycle.

Fuel cycle of 4^th generation systems
- Closed nuclear fuel cycle and transmutation.