Definition
Nonfissile describes a material that cannot sustain a nuclear chain reaction on its own. While it may be capable of undergoing nuclear fission, it cannot maintain a self-sustaining reaction. This is because the neutrons released during fission are either too few or have the wrong energy to cause further fission events. Unlike fissile materials, nonfissile ones don't keep the chain reaction going. It's like trying to start a fire with damp wood โ it won't catch. ๐ฅ