Fusion pumped laser

Coherent light generators – Particular pumping means – Pumping with optical or radiant energy

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372 69, 376146, 376147, 376326, H01S 309, G21B 100

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active

048005665

ABSTRACT:
Apparatus is provided for generating energy in the form of laser radiation. A tokamak fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The tokamak design provides a temperature and a magnetic field which is effective to generate a neutron flux of at least 10.sup.15 neutrons/cm.sup.2.s. A conversion medium receives neutrons from the tokamak and converts the high-energy neutrons to an energy source with an intensity and an energy effective to excite a preselected lasing medium. The energy source typically comprises fission fragments, alpha particles, and radiation from a fission event. A lasing medium is provided which is responsive to the energy source to generate a population inversion which is effective to support laser oscillations for generating output radiation.

REFERENCES:
patent: 4091336 (1978-05-01), Miley et al.
patent: 4160956 (1979-07-01), Fader
patent: 4398294 (1983-08-01), Miller et al.
F. P. Boody et al., "Progress in Nuclear-Pumped Lasers," Radiation Energy Conversion in Space, (AIAA, New York, 1978).
G. H. Miley, "Direct Nuclear Pumped Lasers-Status and Potential Applications," Proceeding of the Fourth Workshop on Laser Interaction and Related Plasma Phenomena, 4A, 181-220 (Editors Schwarz, Hora; 1977), pp. 181, 182, 185, 214-220.
G. H. Miley, "Direct Pumping of Lasers by Fusion Reactors," Fusion Reactor Engineering-II, pp. 633-634.
D. L. Jassby, "Feasibility of Laser Pumping With Neutron Fluxes From Present-Day Large Tokamaks," PPPL-2377, pp. 1-12.
D. L. Jassby, ".sup.3 He Functions in Tokamak-Pumped Laser Systems," PPPL-2387, pp. 1-20 (Oct. 1986).
M. Greenwald et al., "Energy Confinement of High-Density Pellet-Fueled Plasmas in the Alcator C Tokamak," Phys. Rev. Lett. 53, No. 4, 352-355 (Jul. 23, 1984).

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