[idiotsecant]

When you're done with it can I borrow your particle collider capable of mass synthesis of helium

[adrianN]

Alpha particles are essentially Helium, so by breeding large amounts of highly active alpha emitters you can produce Helium much more effectively than by fusion.

[actionfromafar]

Probably that's what they did at the rocky exoplanet. How much radiation do they need down there for it to be measurable as helium in the atmosphere?

[pezezin]

The proper way to generate helium is to use a deuterium-tritium fusion reactor.

[westurner]

Given the neutron radiation from a fusion reactor, it's possible to synthesize Helium (He4) and more Tritium (T) and 3He using Lithium-6 with Boron-10 and Boron-11. An adjacent vertically-aligned (VA-CNT) battery would last for like 20 years and could power safety systems.

A Deuterated Vitrimer pipe with Li-6, B-10, and B-11 could be recycled to extract the T, 3He, and 4He.

Deuterated Vitrimers could also be disposed of in a waste burner.