Nuclear weapons interfere with carbon dating datingpentecostal com
The even numbered isotopes (plutonium-238, 240 and 242) fission spontaneously producing high energy neutrons and a lot of heat.Dealing with the second problem with reactor-grade plutonium, the heat generated by plutonium-238 and plutonium-240, requires careful management of the heat in the device.In fact, the neutron and gamma dose from this material is significant and the heat generated in this way could melt the high-explosive material needed to compress the critical mass prior to initiation.
Virtually any combination of plutonium isotopes -- the different forms of an element, having different numbers of neutrons in their nuclei -- can be used to make a nuclear weapon.
Pre-initiation can substantially reduce the explosive yield, since the weapon may blow itself apart and thereby cut short the chain reaction that releases the energy.
Nevertheless, even if pre-initiation occurs at the worst possible moment (when the material first becomes compressed enough to sustain a chain reaction) the explosive yield of even a relatively simple first-generation nuclear device would be of the order of one or a few kilotons.
Weapon-grade plutonium is defined as plutonium containing no more than 7 percent plutonium-240.
Due to the very short 100 day irradiation periods used during the war (wartime production meant that the plutonium had to be separated as quickly as feasible after being bred), the first Plutonium bomb [Fat Man] used super-grade weapon plutonium containing only about 0.9% Pu-240.