Since it would be of a quite different design to the production reactors, the X-10 Graphite Reactor lost its value as a prototype; but it was considered more important to get the pilot facility up and running as soon as possible in order to supply quantities of plutonium needed for research.
42.
In the U . S ., however, the first experimental atomic reactor ( 1942 ), as well as the Manhattan Project Hanford production reactors that produced the plutonium for the Trinity test and Fat Man bombs, all used pure carbon ( graphite ) neutron moderators combined with normal water cooling pipes.
43.
According to the DIA study, Iraq also has plans to construct or rebuild a uranium conversion plant; a uranium enrichment facility; a plutonium production reactor; a spent-fuel reprocessing facility to recover plutonium; a weapons fabrication facility; a high explosives test facility; and an underground " hardened " nuclear weapon storage facility.
44.
The "'Mayak Production Association "'( Russian : @ > 872 > 4AB25 = = > 5 > 1J548 = 5 = 85 ?0O : ? from 0O : 'lighthouse') is one of the biggest nuclear facilities in the Russian Federation, housing plutonium production reactors and a reprocessing plant.
45.
Additionally, a few grams of tritium ( a by-product of plutonium production reactors and thermonuclear fuel ) can increase the overall yield of the bombs by a factor of three to four . " The sixth Pakistan nuclear test, codename Chagai-II, ( 30 May 1998 ) at Kharan Desert was a successful test of a sophisticated, compact, but powerful bomb designed to be carried by missiles.