self-sustaining chain reaction

This important observation suggested that a self-sustaining chain reaction might be possible.

This is then a self-propagating and thus self-sustaining chain reaction.

It was all the human race neededa chance to use what could turn into a self-sustaining chain reaction.

This would reduce the neutron capture rate, and in theory make a self-sustaining chain reaction possible.

Criticality is a self-sustaining chain reaction producing energy and radioactivity.

However, so long as the system is well below the critical level needed for a self-sustaining chain reaction, all will be well."

So far, no atomic pile in the United States had even managed a self-sustaining chain reaction.

And in 1963 a self-sustaining chain reaction there lasted 10 hours and gave four men large doses of radiation.

Fissile Fissile materials can produce a self-sustaining chain reaction by themselves.

A self-sustaining chain reaction occurs as more atomic nuclei collide, releasing huge amounts of energy in the process.

The last two areas exploit the property of actinides to release enormous energy in nuclear reactions, which under certain conditions may become self-sustaining chain reaction.

With careful control over the geometry and reaction rates, this can lead to a self-sustaining chain reaction, a state known as "criticality".

Critical mass: The smallest mass of fissile material that will support a self-sustaining chain reaction under specified conditions.

These "subcritical" bombs use fissile materials which do not reach the self-sustaining chain reaction of a typical nuclear bomb.

Did the nuclear age begin in 1942, when Chicago Pile-1, a reactor built in a squash court, went "critical" by achieving self-sustaining chain reaction?

Self-sustaining chain reactions were unlikely, thanks to the huge amounts of boric acid that were poured into the reactor.

A mass of fissile material large enough (and in a suitable configuration) to induce a self-sustaining chain reaction is called a Critical mass (nuclear).

It consisted of a stack of uranium rods and graphite blocks that were steadily built up until a self-sustaining chain reaction took place.

Such calculations, which can help scientists identify self-sustaining chain reactions, are vital in the construction of reactors and also in the development of nuclear explosives.

(uranium naturel) "nuclear criticality" means a self-sustaining chain reaction of nuclear fission.

But it was Enrico Fermi and his research group in Chicago in 1942 that made the bomb a reality, by setting up a self-sustaining chain reaction.

Subcritical explosions use nuclear fuel like plutonium in small discharges that stop short of producing a self-sustaining chain reaction that releases any nuclear energy.

Of importance, is that U emits more neutrons than it absorbs; upon reaching the critical mass, U enters into a self-sustaining chain reaction.

Spontaneous fissions release neutrons as all fissions do, so if a critical mass is present, a spontaneous fission can initiate a self-sustaining chain reaction.

Next, said Dr. Rowland, they found that the liberated chlorine set off a self-sustaining chain reaction in which one chlorine atom "takes out about 100,000 ozones."