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New Concept of Fusion Reactor


Investigation of New Concept of Energy Source Based on Fusion Reactions.

Tech Area / Field

  • FIR-ENG/Reactor Engineering and NPP/Fission Reactors

3 Approved without Funding

Registration date

Leading Institute
ITEF (ITEP), Russia, Moscow

Supporting institutes

  • TRINITI, Russia, Moscow reg., Troitsk

Project summary

The purpose of this project is to ground the conceptual possibility of new solution of the controlled fusion problem. The essence of this solution is the hot thermonuclear plasma production by the collision of counterstreaming clusters beam inside the open magnetic trap. Clusters (microdrops) consist of 103-104 atoms of the fusion fuel (2D,3T, 3He) are accelerated by the RFQ type linear accelerator.

The score of the present efforts includes theoretical and experimental investigations both the production of the hot thermonuclear plasma and the direct conversion of the fusion power to the alternating current of an industrial frequency.

The project program includes the following.

- Elaboration of complex of numerical codes for studying of physical processes during the production and confinement of the hot thermonuclear plasma in a magnetic field. By the using of these codes the following problems can be solved:

a) dynamics of the turbulent collision of plasmoids in dependence on the energy per nucleus of the colliding of the different density plasma and magnetic trap geometry;
b) dynamics of the burning plasma (the radial and axial expansion, the magnetic field diffusion);
c) influence of the nonhomogeneity on the plasma turbulence threshold arising from the colliding plasma produced by the separate clusters destruction;
d) decreasing of Lawson parameter (nt) due to the nonmaxwellian velocity distribution as a result of the turbulent heating.

- Elaboration of complex of numerical codes for study of the simultaneous acceleration different mass clusters by the linear RFQ accelerator, in particularly, the transmission efficiency of the different mass clusters acceleration and beam pergence.

- Theoretical and experimental investigations of new type accelerator combining a strong focusing of the RFQ accelerator and a high energy rate for acceleration of the clusters beam with a wide mass spectrum.

- Experimental study of new method of RF power supply of the RFQ accelerator which can be realize due to the shifting of the accelerating RF power supply frequency to 1-5 MHz for 103-104 atoms clusters.

- Study, design and fabrication of hydrogen clusters injector with the controlled mass spectrum.

The basic knowledge of these experimental and theoretical investigations is necessary for design of an experimental device for the checking of proposed method of the hot plasma production and the fusion power conversion into the electric power. Cost of such device is in 2-3 order of magnitude lower than the cost of the full scale industrial prototype.

Proposed system based on the collision of the counterstreaming charged clusters beam of heavy isotopes of hydrogen (D+2n+1, T+2n+1, n =103-104) accelerated up to 20 keV per nucleus makes possible to use the long magnetic traps with a small diameter 2R ~ 10 cm. This method of the hot plasma production has the following features:

a) Considering acceleration technique there is no technical problem for going from 20 keV/nucleus to 200 keV/nucleus clusters acceleration. So the more hot plasma with temperature up to 100-200 keV depending on the specific energy per nucleus can be produced. Such temperature is required for aneutronic fusion reaction (D-3 He,p-11B, p-7Li). It should be note that there is no another acceptable methods for production 200 keV plasma.
b) The acceleration pulse frequency can be increased up to 50-100 Hz. As the plasma burning time (the plasma lifetime) can reach the value about ~ 10 ms - the linear conversion of the fusion power into the electric current of the industrial frequency is possible without conventionally used intermediate conversion stages by the scheme: heat - turbine- generator. Thus, considering economy factors, proposed system can compete with the existing fission power plants and fusion powerplants being developed.

Performance of this project in accordance with ISTC goals is aimed to support fundamental and applied investigations for peaceful purposes which are being studied by scientists involved formerly in weapon research.

Foreign organization and scientists are welcomed to take part in this project.


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