Opmmur
Time Travel Professor
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What is a meltdown?
ABC News Online looks at how the Fukushima nuclear reactors work and explains the meltdown process.
The US Nuclear Regulatory Commission has warned there is no water left in the spent fuel pool of reactor No. 4 at the plant, resulting in "extremely high" radiation levels. High-pressure water cannons will now be used to try and spray water into the reactors.
The situation has been described by the International Atomic Energy Agency as "very serious" and US officials now say radiation levels at the plant may give emergency workers "lethal doses" in a short period of time, meaning their ability to take corrective measures will be hampered.
Sources: MIT Department of Nuclear Science and Engineering / Professor Stephen Lincoln, School of Chemistry and Physics, University of Adelaide.
ABC News Online looks at how the Fukushima nuclear reactors work and explains the meltdown process.
The US Nuclear Regulatory Commission has warned there is no water left in the spent fuel pool of reactor No. 4 at the plant, resulting in "extremely high" radiation levels. High-pressure water cannons will now be used to try and spray water into the reactors.
The situation has been described by the International Atomic Energy Agency as "very serious" and US officials now say radiation levels at the plant may give emergency workers "lethal doses" in a short period of time, meaning their ability to take corrective measures will be hampered.
Sources: MIT Department of Nuclear Science and Engineering / Professor Stephen Lincoln, School of Chemistry and Physics, University of Adelaide.