While the fundamental physics of the fission chain reaction in a nuclear weapon is similar to the physics of a controlled nuclear reactor, the two types of device must be engineered quite differently (see nuclear reactor physics).
Meskipun ilmu dasar fisika reaksi rantai fisi di dalam senjata nuklir mirip dengan ilmu dasar fisika reaktor nuklir terkontrol, tetapi 2 alat ini direkayasa agak berbeda (lihat fisika reaktor nuklir).