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91. In a fission reaction, the light particle (the free neutron) collides with the heavy particle (the uranium or plutonium isotope) which splits into two or three pieces.

92. S. in the 1970s can recycle only the plutonium in spent fuel, plutonium is just one of a dozen or so long-lived actinides.

93. In its declaration, North Korea will state how much plutonium it possesses.

94. Much of this remains dangerous for thousands of years, and a proportion of it can be used to produce weapons-grade plutonium.

95. A first step would be an agreement on a phase-out and then elimination of highly-enriched uranium (HEU) and plutonium (Pu) (primary materials for a nuclear device) from the civilian sector.

96. The benchmark problem for GT-MHR plutonium burner accidents is a part of the IAEA Coordinated Research Program(CRP) on "heat transport and afterheat removal for GCR under accident conditions".

97. The United States and Russia signed an agreement to dispose of sixty-eight tons of weapons-grade plutonium. They plan to use the plutonium as fuel for civilian nuclear reactors.

98. Dealing with the phase-out of plutonium might be more difficult, as it remains part of some countries' fuel cycles and power generation.

99. Plutonium radiates dangerous emissions.

100. The probability to produce the weapon-grade plutonium clandestinely in some countries were discussed, some possible ways to detect the clandestine production activities have been given.

101. Analysts say that would allow the reclusive Communist state to extract plutonium from the reactor's fuel rods - giving it additional fuel with which to build nuclear weapons.

102. The plutonium also could be used, however, to make nuclear weapons.

103. There has been a parallel argument about the lax stock-taking procedures for plutonium.

104. It is possible to use a plutonium foil as a filter to remove the second - order contamination.

105. The documents date back to 1986 and outline operations at the Yongbyon nuclear complex, where North Korea produced weapons-grade plutonium that was used in an October 2006 nuclear detonation.

106. Those who possess source of plutonium shall register it at the AEC.

107. Unlike them ,(http://sentencedict.com/plutonium.html) it declines to end the production of fissile material — uranium and plutonium — for bombs.

108. The Jiuquan reactor could have facilitated about 0.9 tonness of weapon-grade plutonium.

109. Engineers said that plutonium could begin seeping from the corroded sub.

110. New types of reactors were designed, including the Fast Breeder reactor powered by plutonium and cooled by liquid sodium.

111. Three days later, the US dropped a plutonium bomb on the port city of Nagasaki, killing about 80,000. Japan surrendered on Aug. 15.

112. When plutonium decays, it emits what is known as an alpha particle, a relatively big particle that carries a lot of energy.

113. Indirect ionization by neutrons can also result from fission of plutonium or uranium isotopes.

114. South Korea admitted experimenting with traces of plutonium , in 1982 , and with uranium enrichment, in 2000.

115. But roughly 5 percent of reactor waste is highly radioactive fission products, including plutonium and other actinides.

116. Dmytro Melnychuk, rector of the national university, said: "Strontium-90, plutonium, and americium-241 are all extremely susceptible to upward atmospheric migration and dispersal via heat from fires.

117. Only this time, a Plutonium bomb nicknamed "Fat Man" was dropped on the city.

118. Before it can be used in weaponry, the plutonium must first be separated from the fuel rods at a highly guarded nuclear facility near Rawalpindi, about 100 miles northeast of Khushab.

119. He was quoted as saying that his nation would "weaponize" its existing plutonium stockpiles and begin a program to enrich uranium, which can also be used to make atomic warheads.

120. The uranium that gets from inside recycle and plutonium are usable will make new nuclear fuel.