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Latest News
Russia withdraws from 25-year-old weapons-grade plutonium agreement
Russia’s lower house of Parliament, the State Duma, approved a measure to withdraw from a 25-year-old agreement with the United States to cut back on the leftover plutonium from Cold War–era nuclear weapons.
D. L. Jassby
Fusion Science and Technology | Volume 13 | Number 3 | March 1988 | Pages 463-472
Technical Paper | Alpha-Particle Workshop / Nonelectrical Application | doi.org/10.13182/FST88-A25124
Articles are hosted by Taylor and Francis Online.
Helium-3 placed in an annular cell or array of cells around a tokamak fusion generator can convert moderated fusion neutrons to energetic ions by the 3He(n, p)T reaction and thereby excite gaseous lasants mixed with the 3He while simultaneously breeding tritium. The required 3He inventory is ∼ 5 kg for large tokamak devices. Special configurations of toroidal field magnets, neutron moderators, and reflectors must be incorporated to maximize the neutron flux in the laser cell. The annular laser radiation can be coupled to an unstable resonator at the top of the tokamak and extracted as a single output beam.