Helion's idea is super exciting. The above article says: "In reactors with deuterium-only fueling (which is much more difficult to ignite than a deuterium-trit

Helion's idea is super exciting. The above article says: "In reactors with deuterium-only fueling (which is much more difficult to ignite than a deuterium-tritium mix), the neutron reaction product has five times lower energy and the neutron streams are substantially less damaging to structures. But the deleterious effects will still be ruinous on a longer time scale." So I suppose there is that issue, but far better than what a reactor using 3H would have. But as their reactor uses 3He also I wonder how that would affect neutron damage to the equipment.