Neutron Devices were a form of late Cold War weapon, designed to maximize the effects of a Nuclear Blast against an Enemy target, by releasing the maximum amount of concentrated radiation and minimizing the often destructing effects of the blast. Hence, The ''Neutron'' Bomb was developed (often called a ''Clean'' Bomb) in 1971. The initial theory of Neutron Bombs goes back to the 1950s (but working and reliable devices did not come until 40 years later). Complicated and expensive, early examples were envisioned for The Nike and Pershing Missile Systems (1960s).
In theory, Neutrons are created by the thermonuclear process. As they build in mass and energy, the well known destructive blast will occur. In The Neutron Device, without using a reinforced Uranium casing, The Neutrons build energy and pass faster through a modified (non-Uranium) Casing – releasing their radiation faster and farther. While the blast is still destructive, it is greatly minimized over a tradition blast. Therefore, more ''real estate'' is saved, with radiation is maximized (greater), causing more casualties via the effect.
The first practical Neutron Bomb developed by The US (and deployed with her Allies), was The W70-3. These were designed to be deployed with The MGM-25 ''Lance'' Missile (both by Surface Naval Vessel and Aircraft). Immense pressure due to International Treaty, cause then US President Ronald Reagan to discontinue further deployments and production of The Device. The last such Neutron Bomb was dismantled in 1992.