Scalable On-Demand Neutron Supply

A fusion breeder produces neutrons whenever it runs, so its output scales with operating machines rather than with a scarce byproduct stream.

Neutrons as a function of operation

The defining feature of a fusion neutron source is that its output follows operation. As long as the plasma burns at its design point, 85.0 MW of fusion power, the 14 MeV neutron flux is present. Output is not gated by mining a rare material or by waiting on decay; it is set by how long and how many machines run.

Why this matters for security supply

• Output scales with operating machines, not scarcity
• On-demand, not dependent on byproduct harvest
• Can be sited and scaled under domestic control

An honest limit

Scalability is a property of the design concept, not a delivered fact. The first machine begins construction Q2 2027 and targets first tritium near 2030; a fleet follows only after the first-of-a-kind is proven. No net-gain hardware claim is made before then. The scaling story is a plan, described conservatively.

Scaling is a plan, tested by the first unit

Scaling output by building more machines is only credible if the first machine works, so the plan is deliberately staged. The first-of-a-kind proves the physics and the production; next-of-a-kind and best-of-a-kind refine build and operation before any fleet is contemplated. Presenting scalability this way, as a sequenced plan gated on demonstration rather than an accomplished capacity, is what keeps the claim honest for the decision-makers who would rely on it.

This page describes a design and simulation study, not a built machine. The breeder (Hyperion) begins construction Q2 2027; first-of-a-kind first tritium is targeted near 2030. No hardware net-gain is claimed before then.