Ví dụ về việc sử dụng Highly enriched uranium trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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What is Highly Enriched Uranium?
But Kim Jong Il cheated,pursuing a second covert path to the bomb using highly enriched uranium(HEU).
North Korea's nuclear program is based on highly enriched uranium and plutonium separated from spent reactor fuel rods.
The Presidents highlighted thesuccessful conclusion of a joint effort to remove all highly enriched uranium from Vietnam.
By 1989, South Africa had 6 bombs,each containing 55kg of Highly Enriched Uranium(HEU), capable of delivering an explosive equivalent of 19 kilotons of TNT.
Analysts suspect that with its third test,North Korea will attempt development of a nuclear device using highly enriched uranium.
He estimates North Korea already has enough plutonium and highly enriched uranium to build 20 to 25 nuclear weapons.
After upgrades to the research reactor, the fuels now used are IRT-2M-type assemblies of 36% and80% highly enriched uranium.
Highly enriched uranium(HEU), which contains an even greater proportion of U-235, is sometimes used in nuclear weapon design.
According to Moniz the Vietnam accomplishment“will have removed nearly all highly enriched uranium from Southeast Asia.”.
With further processing, one obtains highly enriched uranium, containing 20% or more U-235, that is suitable for use in compact nuclear reactors- usually used to power naval warships and submarines.
The Little Boy gun type atomic bomb dropped on Hiroshima on August 6,1945 was made of highly enriched uranium with a large tamper.
Surplus highly enriched uranium can be downblended with depleted uranium or natural uranium to turn it into low enriched uranium suitable for use in commercial nuclear fuel.
Then, Iran would have to further enrich it, to 90 percent purity,using centrifuges until it had about 25 kilograms of what is called“highly enriched uranium.”.
While we can be thankful that the highly enriched uranium stocks are no longer in Libya, the remaining material in Tajoura could, if it ended up in the wrong hands, be used as ingredients for dirty bombs,” Heinonen, now at Harvard University, said.
Japan also possesses an indigenous uranium enrichmentplant which could be used to make highly enriched uranium suitable for weapons use.
While this is short of the at least 20 percent enrichment needed for weapons-grade uranium, the stock of low-enricheduranium is the raw material for producing highly enriched uranium.
Critics have said that the efforts fall short bsecausediscussions haven't focused on military stockpiles of highly enriched uranium or civilian plutonium, seen by resource-poor countries as a potential source of energy.
Officials and independent experts say North Korea appears to have taken unusual steps to conceal details about the nuclear weapon it tested in February,fueling suspicions that its scientists shifted to a bomb design that uses highly enriched uranium as the core.
Two major types of atomic bombs were developed by the United States during World War II: a uranium-based device(codenamed"Little Boy")whose fissile material was highly enriched uranium, and a plutonium-based device(see Trinity test and"Fat Man") whose plutonium was derived from uranium-238.
After the North's last underground nuclear test in February last year,analysts could not determine whether the North used highly enriched uranium for fuel.
Bush said that to end its isolation, North Korea must, for instance,dismantle all of its nuclear facilities and resolve outstanding questions on its highly enriched uranium and proliferation activities“and end these activities in a way that we can fully verify.”.
Stanford University scholars, including nuclear physicist Siegfried Hecker who visited North Korea's centrifuge facility at Nyongbyon in 2010, wrote earlier this year thatNorth Korea is estimated to have a highly enriched uranium inventory of 250 to 500 kilogrammes, sufficient for 25 to 30 nuclear devices.
North Korea's Atomic Energy Institute, which has jurisdiction over Yongbyon,also told Kyodo it had been producing highly enriched uranium necessary for nuclear arms and power"as scheduled".
According to South Korean and other assessments, Yongbyon alone is estimated to have 110 pounds of weaponized plutonium,enough for six to 10 bombs, and a highly enriched uranium inventory of 550 to 1,100 pounds, sufficient for 25 to 30 nuclear devices.
Stanford University scholars, including nuclear physicist Siegfried Hecker who visited North Korea's centrifuge facility at Nyongbyon in 2010, wrote earlier this year thatNorth Korea is estimated to have a highly enriched uranium inventory of 250 to 500 kilogrammes, sufficient for 25 to 30 nuclear devices.