“Nuklearni reaktor, uređaj u kojem se vrši kontrolirana lančana reakcija fisije u svrhu dobivanja energije i neutronskog fluksa potrebnog za proizvodnju umjetnih radioaktivnih izotopa i za ispitivanje materijala. Već prema tome koja je od tih dviju namjena primarna, grade se ENERGETSKI, odnosno istraživački REAKTORI. Prvi nuklearni reaktor sagradio je E. Fermi 1942. u Chicagu.”
(http://nuklem.tripod.com/nuklearni_reaktor.htm)


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Note added at 12 hrs 10 mins (2004-11-04 23:13:36 GMT)
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Nuclear reactor,
device for producing controlled release of nuclear energy. Reactors can be used for research or for power production.
- A RESEARCH REACTOR is designed to produce various beams of radiation for experimental application; the heat produced is a waste product and is dissipated as efficiently as possible.
- In a POWER REACTOR the heat produced is of primary importance for use in driving conventional heat engines; the beams of radiation are controlled by shielding.
(http://www.cartage.org.lb/en/themes/Sciences/Chemistry/Nucle...