Which type of explosion is produced by the fission or fusion of nuclear source material?

• A. Nuclear explosion
• B. Mechanical explosion
• C. Low explosives
• D. TATP and HMTD

Answer: (A)

When a nucleus fissions or fuses, a nuclear explosion results. In fission, a heavy nucleus splits into lighter nuclei, releasing energy, neutrons, and gamma radiation in a rapid chain reaction that causes an enormous energy release in a fraction of a second. In fusion, light nuclei are forced together under extreme temperature and pressure, releasing even more energy per reaction. The outcome is a massively destructive blast, an intense fireball, and dangerous radiation—characteristics that set nuclear explosions apart from other types. A mechanical explosion comes from a sudden release of stored mechanical energy, not nuclear processes. Low explosives burn quickly through deflagration, not via nuclear chain reactions. TATP and HMTD are organic peroxide-based chemical explosives, producing chemical explosions, not nuclear ones. So the explosion produced by fission or fusion of nuclear material is a nuclear explosion.