neutron bomb
"Also called Enhanced Radiation Warhead, specialized type of small thermonuclear weapon that produces minimal blast and heat but which releases large amounts of lethal radiation. The neutron bomb delivers blast and heat effects that are confined to an area of only a few hundred yards in radius. But within a somewhat larger area it throws off a massive wave of neutron and gamma radiation, which can penetrate armour or several feet of earth. This radiation is extremely destructive to living tissue. Because of its short-range destructiveness and the absence of long-range effect, the neutron bomb would be highly effective against tank and infantry formations on the battlefield but would not endanger cities or other population centres only a few miles away. It can be carried in a Lance missile or delivered by an 8-inch (200-millimetre) howitzer, or possibly by attack aircraft.
In strategic terms, the neutron bomb has a theoretical deterrent effect: discouraging an armoured ground assault by arousing the fear of neutron bomb counterattack. The bomb would disable enemy tank crews in minutes, and those exposed would die within days. U.S. production of the bomb was postponed in 1978 and resumed in 1981.
http://www.britannica.com/eb/article-9055407/neutron-bomb
My background is in radiation science and I can tell you that while metal is actually hazardous in neutron fields, other materials such as boron and wax are useful shields as are petroleum based materials which have a high hydrocarbon content. One would have to move the tanks / materials which contain DU out of range of the neutron field or they become radioactive uranium again. Which according to the article is all completely feasible, for those who know how neutron bombs really work
"Also called Enhanced Radiation Warhead, specialized type of small thermonuclear weapon that produces minimal blast and heat but which releases large amounts of lethal radiation. The neutron bomb delivers blast and heat effects that are confined to an area of only a few hundred yards in radius. But within a somewhat larger area it throws off a massive wave of neutron and gamma radiation, which can penetrate armour or several feet of earth. This radiation is extremely destructive to living tissue. Because of its short-range destructiveness and the absence of long-range effect, the neutron bomb would be highly effective against tank and infantry formations on the battlefield but would not endanger cities or other population centres only a few miles away. It can be carried in a Lance missile or delivered by an 8-inch (200-millimetre) howitzer, or possibly by attack aircraft.
In strategic terms, the neutron bomb has a theoretical deterrent effect: discouraging an armoured ground assault by arousing the fear of neutron bomb counterattack. The bomb would disable enemy tank crews in minutes, and those exposed would die within days. U.S. production of the bomb was postponed in 1978 and resumed in 1981.
http://www.britannica.com/eb/article-9055407/neutron-bomb
My background is in radiation science and I can tell you that while metal is actually hazardous in neutron fields, other materials such as boron and wax are useful shields as are petroleum based materials which have a high hydrocarbon content. One would have to move the tanks / materials which contain DU out of range of the neutron field or they become radioactive uranium again. Which according to the article is all completely feasible, for those who know how neutron bombs really work