Fuel Conditioning

Before injection, deuterium and helium-3 are purified, dried, blended to the target ratio, and formed into the gas or pellets the plasma requires.

From store to injectable fuel

Fuel drawn from storage is not ready to inject as-is. Conditioning is the set of steps that turns stored gas into a plasma-ready feed. It removes residual impurities and moisture, verifies isotopic purity, blends deuterium and helium-3 to the target ratio, and prepares the physical form — clean gas for puffing, or frozen solid pellets for deep injection. Conditioning is where the fuel's chemistry and composition are finalized.

Why conditioning is its own step

Separating conditioning from bulk storage keeps the large fuel inventory simple and stable while the exacting composition control happens on a small, active stream just before injection. It also places a final quality gate immediately upstream of the plasma: any off-spec fuel is caught here, not in the machine. For pellet fuelling, conditioning includes freezing and shaping the fuel to the size and speed the injector needs to place it deep in the plasma.

• Removes residual impurities and moisture
• Verifies isotopic purity as a final gate
• Blends deuterium and helium-3 to the target ratio
• Forms gas for puffing or frozen pellets for deep injection

Conditioning connects storage, quality assurance, and injection into one continuous path, and it is instrumented so the composition delivered to the plasma is measured, not assumed.