1. The " Runt " device had 7.5 % lithium-6 in the fusion fuel . 2. That means that the universe's fusion fuel tank is at the 94 percent mark. 3. This secondary assembly device contained the lithium deuteride fusion fuel in a stainless-steel canister. 4. This tube is filled with fusion fuel , typically deuterium gas. 5. It is surrounded by a hemisphere of fusion fuel , for example deuterium-tritium, or lithium deuteride. 6. The first blast compresses the fusion fuel , while the second high energy pulse ignites it. 7. It is, however, not trivial to compare the power density produced by different fusion fuel cycles. 8. When the fusion fuel is heated, it will naturally lose energy through a number of processes. 9. :The Bussard ramjet is an idea for using the interstellar medium as fusion fuel on your spaceship. 10. In the boosted design, the fusion fuel in gas form is pumped into the pit during arming.
