14 MeV Neutron Supply for Defense

The breeder's stream of 14 MeV fusion neutrons is a domestic capability for materials qualification and detection-relevant work.

A domestic fast-neutron source

Every D-T fusion reaction releases a 14 MeV neutron. At the breeder's design point of 85.0 MW fusion power, the machine is a strong, steady source of fast neutrons. Such neutrons are useful for qualifying materials and electronics against radiation and for neutron-based inspection, capabilities relevant to national security and dependent today on scarce facilities.

A domestic fusion-spectrum neutron source reduces dependence on limited or foreign irradiation facilities for defense-relevant testing. This is a supply-security benefit distinct from power: the neutrons are a service, not electricity, and are available while the machine runs regardless of net-energy questions.

Scope and limits

Detailed neutron applications, radiation-effects testing, materials qualification, and detection, are covered in the national-security and isotopes sections of this site. Here the point is narrow: a domestic 14 MeV source is a sovereignty asset. The breeder remains a design-and-simulation study, with the neutron output following from its design fusion power.

• D-T fusion yields 14 MeV neutrons; 85.0 MW design power
• Fast neutrons qualify materials and electronics
• A domestic source reduces reliance on scarce facilities
• Neutrons are a service, independent of net-energy questions

The steadiness of the source matters as much as its intensity. A neutron facility that runs predictably supports scheduled qualification campaigns, which is what materials and electronics programs need. Existing high-energy neutron sources are few and heavily subscribed, so a domestic, steady 14 MeV source relieves a genuine capacity constraint. That capacity value is independent of any net-energy question about the machine.

Design stage; the output is a design point, not a measured result.