#juan said:
Graeme wrote:
as it turns out the GBU-28 is not meant to be a dirty bomb exactly but the depleted uranium is an extremely effective explosive, becoming extremely hot where by killing just about anyone in the same tunnel system.
I don't know where you get your information but the GBU-28 bunker buster is exactly a dirty bomb. DU is not an explosive but a very effective penetrator. The explosive in a GBU-28 is 650 lbs of tritonal. DU is mainly U-238, which is a chemically toxic, radioactive, poison material with a half life of about four billion years. During the penetration the DU is vaporized. This means the dust from the vaporized DU will still be radioactive, and toxic, and poison, when our sun dies.
I was in the process of learning while I was posting.
here are the reasons for using depleted uranium as the war head.
Density - Depleted uranium is 1.7 times heavier than lead, and 2.4 times heavier than steel.
Hardness - If you look at a Web site like WebElements.com, you can see that the Brinell hardness of U-238 is 2,400, which is just shy of tungsten at 2,570. Iron is 490. Depleted uranium alloyed with a small amount of titanium is even harder.
Incendiary properties - Depleted uranium burns. It is something like magnesium in this regard. If you heat uranium up in an oxygen environment (normal air), it will ignite and burn with an extremely intense flame. Once inside the target, burning uranium is another part of the bomb's destructive power.
-source: howstuffworks.com
as you can see I wasn't completely wrong, just incomplete, much like your post.
(small edit though I should have said "extremely effective IN AN explosive" not an extremely effect explosive... It was late, I wasn't fully awake)
and like I said before it is not MEANT to be a dirty bomb, the radioactive material is distributed underground and the radioactive property is the least of its target's worries, because they are dead due to the explosion and extreme heat many years before any type of cancer can set in.