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Aneutronic fusion

A fusion reaction that does not produce neutrons, e.g. proton-boron fusion. The neutrons produced during fusion activate the surrounding material and carry away most of the fusion energy, so it is advantageous to achieve aneutronic fusion, which does not produce neutrons. The resulting particles can then be held in the magnetic field and their energy can be efficiently used. However, aneutronic fusion needs much higher ignition temperatures than, for example, neutron-producing deuterium-tritium fusion.

Examples of aneutronic fusion reactions:

Deuterium — 3He

Deuterium — 6Lithium

3He — 6Lithium

3He —3He

Proton — 6Lithium

Proton — 7Lithium

Proton — 11Boron

Proton — 15Nitrogen