Laser fusion ignition device and fusion ignition method
A technology of laser fusion and ignition device, which is used in fusion reactors, thermonuclear fusion reactors, greenhouse gas reduction and other directions, and can solve the problems of laser plasma parameter instability and hydrodynamic instability.
Active Publication Date: 2020-09-18
INST OF PHYSICS - CHINESE ACAD OF SCI +1
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Problems solved by technology
[0002] Due to highly complex intrinsic physical problems such as laser plasma parameter instability, hydrodynamic instability, and implosion mixing process in the laser fusion (ICF) process, the laser fusion process is highly complex
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Embodiment Construction
[0022] This application proposes a laser fusion ignition device, which uses high-power laser to compress, ablate, and accelerate the fuel in the conical structure, combined with the lateral pinching effect of the conical structure, to realize the three-dimensional spherically symmetrical centripetal implosion of the fuel , so as to achieve laser fusion ignition. Wherein, the fuel is a fuel capable of fusion, such as deuterium-tritium.
[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In the drawings, the same reference numerals are assigned to components that have substantially the same or similar structures and functions, and repeated descriptions thereof will be omitted.
[0024] figure 1 A schematic cross-sectional view of an embodiment 100 of the laser fusion ...
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The invention discloses a laser fusion ignition device. The device comprises a laser source, two identical hollow compression cones which are separated from each other and used for being filled with fuel for fusion, wherein a hole is formed in the cone top of each compression cone, the cone bottom of each compression cone is open and the two compression cones are made of a metal, coaxial and opposite in cone top, and an ignition assembly which is used for heating the fuel which is sprayed out of the holes of the two compression cones and collides with each other, so that fusion ignition is carried out on the fuel. A laser source generates a plurality of paths of laser pulses to irradiate the fuel from the cone bottom of each of the two compression cones to the cone top direction, so that the fuel is oppositely sprayed out from the holes of the two compression cones and collides with each other. The laser fusion ignition device can reduce the energy of laser for implementing fusion compression and ignition, and can improve the stability of laser fusion ignition. The invention further discloses a laser fusion ignition method.
Description
technical field [0001] The present application relates to the field of laser-driven inertial confinement fusion, in particular to a laser fusion ignition device and a laser fusion ignition method. Background technique [0002] Due to highly complex intrinsic physical problems such as laser plasma parameter instability, hydrodynamic instability, and implosion mixing process in the laser fusion (ICF) process, the laser fusion process is highly complex. [0003] It is expected that a laser fusion ignition device and a corresponding ignition method can substantially reduce the complexity of the laser fusion ignition process, and reduce the total demand for laser energy in the laser fusion compression and ignition process. Contents of the invention [0004] In one aspect, a laser fusion ignition device is disclosed, which includes a laser source; two identical hollow compression cones separated from each other for filling fuel for fusion, each of the two compression cones The ...
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IPC IPC(8): G21B1/19
CPCG21B1/19Y02E30/10
Inventor 张杰张喆王伟民远晓辉李玉同
Owner INST OF PHYSICS - CHINESE ACAD OF SCI