Chernobyl should not be used as a reason for halting all nuclear reactors.
They have also been decisive; evacuating people and flooding reactors with seawater to contain the build-up of heat.
These expanded granular sludge bed (EGSB) reactors rely on the bacteria staying in the tank but high-solid waste would push them out.
And then they have, what is this, numerical design ALARA objectives, this is ALARA, this is the as low as reasonably achievable radiation exposure. Containment leakage testing for these reactors.
Now let me go over boiling water reactors and then we'll do pressurised water reactors.
The world holds its breath as Japan’s damaged nuclear reactors continue to spew radiation.
They switched to military fire engines to douse the reactors and the pools of spent fuel rods beside them.
So in 1996, Ottawa-based isotope wholesaler MDS Nordion hired AECL to design, construct and run two new reactors and a processing facility.
At the Fukushima Daiichi nuclear plant, water cannons spray jets of water to cool overheating nuclear reactors. But scientists say that's like using a squirt gun to put out a forest fire.
Three reactors melted down after the tsunami wrecked their cooling systems.
The Japanese reactors seem to have survived one of the most powerful earthquakes ever recorded without major structural damage.
India is short of usable uranium. If it could buy foreign fuel for its civilian reactors, it could devote more of the stuff it makes at home to bomb-building.
We could see the ravaged exterior of the reactors.
Early Tuesday morning, the frightening news came that Japan was facing the full meltdown of crippled reactors at a nuclear power station - with unknown and potentially catastrophic consequences.
Authorities dumped some of the waste seawater used to cool the reactors back into the sea, where it joined contaminated water leaking from cracks in the plant and nuclear fallout from the air.
Once the Japanese think things over, I expect they will make the right decision, namely to shut down all 55 of their current reactors and cancel the 11 new reactors they have planned.
Some 30 American reactors have designs similar to the crippled reactors in Japan.
So far, the authorities have been relatively open. They have also been decisive; evacuating people and flooding reactors with seawater to contain the build-up of heat.
Plutonium, believed to be from one of the damaged reactors, has been found in nearby soil, although Tepco insists this does not pose a threat to human health.
As soon as the earthquake struck, the reactors scrammed: the control rods, used to modulate the speed of the nuclear reaction, were inserted into the reactor cores, shutting off the nuclear reactions.
This mixture of plutonium and other radioactive elements couldthen be turned into fuel suitable for use in “fast” reactors.
And then we have gas cooled reactors which can use supercritical carbon dioxide or helium.
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