plutonium 239 การใช้

• That amount of plutonium 239 might be enough to build a weapon.
• Plutonium 239 is the weapons-grade plutonium used in nuclear weapons.
• Only small amounts of plutonium 239 are required to make a nuclear device.
• The plutonium obtained consists of plutonium 239 and 240.
• The ministry can now officially say we have had no thefts of plutonium 239,
• The ease of plutonium 239 production made it a bulwark of the cold war.
• Urine samples from the islanders on Bikini Atoll showed low levels of plutonium 239 and 240.
• For example, Strontium 90 causes breast cancer and leukemia, Plutonium 239 causes liver cancer.
• The panel recommended limiting how much Plutonium 239, a highly toxic substance, could be deposited there.
• Traces of plutonium, especially plutonium 239, occur naturally on Earth in some uranium ores, Savage added.
• For the much more fearsome-sounding plutonium 239, the half-life is 24, 000 years.
• Underground nuclear blasts have pumped permafrost with radioactive strontium-90, cesium-137 and plutonium 239 and 240.
• Similarly to plutonium 239, uranium 235 is used for the production of ignition in nuclear warheads, the report said.
• Russian officials have also questioned the German government's identification of plutonium 239 seized in July as being Russian in origin.
• The Russian authorities have denied that they are missing any plutonium 239, the fissionable material most often used in nuclear warheads.
• Plutonium 239, with a 24, 000 year half life, will persist in the environment hundreds of thousands of years.
• Very recently, we carried out an inventory of all sources linked to plutonium and we registered no thefts or losses of plutonium 239.
• The plutonium 239 in the Mox is at the heart of international anxieties, since it can be used to help make a nuclear weapon.
• Plutonium 239 is more frequently used in nuclear weapons than Uranium 235, as it is easier to obtain in a quantity of critical mass.
• Hawkins said that the plutonium in the seized Mox had an isotopic composition of 87 percent plutonium 239, the principal isotope used in making bombs.