Exploiting the alpha decay of thorium? If we fully capture the alpha decay energy from the decay chain of Th-232, we get about 24 milliwatts per ton of Th-232.

Exploiting the alpha decay of thorium? If we fully capture the alpha decay energy from the decay chain of Th-232, we get about 24 milliwatts per ton of Th-232. That doesn't seem practical at all.