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240 등은 어떤 값 이상의 운동 에너지를 갖는 중성자와 충돌했을 경우에만 핵분열이 일어날 수 있으므로, 핵분열 가능(Fissionable) 물질이라 한다. 토륨-232와 우라늄-238의 경우 각각 1.4 MeV와 0.6 MeV 이상의 높은 운동 에너지를 갖는 중성자에 의해서...

who was bred in a seafaring culture. To be the place of origin of: Austria breeds great skiers. To produce (fissionable material) in a breeder reactor. v. intr. To produce offspring. To copulate; mate. To originate and develop: Mischief...

a critical mass by a little more than a half. What's even more horrific to learn is that this small amount of fissionable material can either be used in a low yield 'atomic bomb' -- like the one's we dropped on Japan in WWII -- or they...

for most of this time. Since no radioactivity was ever detected at the WTC site, we can be sure it wasn’t fissionable material making all that heat. Therefore, it had to have been chemical energy -- chemical energy that can be released...

terms, this is a collection of uranium fuel elements that produce huge amounts of energy to power the vessel (a ton of fissionable material releases the energy equivalent to 2.5 million tons of coal). The entire process takes place...

이들 원자들은 수십억년 전보다 그렇게 많이 형성되지 않았다고 결론지어야만 한다. 한편…우라늄의 핵분열성 동위원소(fissionable isotope, U235)는 매우 귀해서, 주요 동위원소들 중에서 단지 0.7% 밖에 되지 않는다.....우라늄 U235의 반감기는 U238의...

moderated reactor 감속제 - moderator 냉각제 - coolant 농축 우라늄 - enriched uranium 핵분열 물질 - fissle(fissionable) material 방사성 동위원소 - radioactive isotope 반감기 - half life 전도 - conduction 대류 - convection 복사 - radiation...

by depleted uranium or natural uranium, whose U-238 is not fissile and cannot sustain a chain reaction, but which is fissionable when bombarded by the high-energy neutrons released by fusion in the secondary stage. This process provides...

to uranium hexafluoride gas and forced through thousands of micro pore filters during which uranium 235, the fissionable isotope is enriched from 0.7 per cent to 3 per cent - an extremely energetic process. Two aged 1500 megawatt coal...