11 results about "Plasma confinement" patented technology

A method for depositing at least one material on a substrate is described. The method comprises a first deposition, wherein the first deposition comprises sputtering from a first rotating target and a second rotating target through an aperture, the aperture being adjustable and having a size smaller than a first size. The first rotating target has a first magnet assembly providing plasma confinement in a first direction toward a second rotating target. The second rotating target has a second magnet assembly providing plasma confinement in a second direction toward a first rotating target. The first direction and the second direction deviate from being parallel to the substrate plane of the substrate by an angle less than a first value. The method comprises a second deposition on the top of the first deposition. The second deposition comprises sputtering from a first rotating target and a second rotating target through an aperture, the aperture having at least a second size, the second size being larger than the first size. The first magnet assembly provides plasma confinement in a third direction. The second magnet assembly provides plasma confinement in a fourth direction. At least one of the third or fourth directions deviates from being parallel to the substrate plane by at least an angle of the second value, and the second value is greater than the first value.

The present invention addresses a problem in which a metal is easily corroded by rust when water is used as a plasma confinement layer in a laser peening method utilized as a metal surface modification method.　This laser processing method comprises a step of applying or affixing a gel-like substance to a processing region of an object to be processed, and a step of repeatedly irradiating the processing region with a laser. Because the laser processing method allows use of a gel-like substance containing no water as the plasma confinement layer, corrosion of the metal, which is the object to be processed, due to rust can be avoided. The gel-like substance is suitably used as a physical gel.

This invention relates to the field of intelligent welding simulation and control, and particularly to a method for constructing an AI welding composite energy field model based on a dynamic coupling mechanism. The method includes: firstly, constructing an asymmetric rotating-tilted body laser energy field model, an arc energy field model considering plasma constraints, and a dynamically coupled enhanced energy field model; simultaneously acquiring multimodal sensor data including current and voltage signals and molten pool images; then, using a pre-trained AI deep inversion network, mapping the extracted multimodal feature vectors and process parameters to accurate plasma compressibility factors and synergistic effect coupling coefficients; finally, updating the heat flux density distribution through back substitution and superimposing it to construct the overall composite energy field distribution, which is then input into a multiphysics solver for transient hydrodynamic calculations. This invention achieves the inversion and real-time dynamic coupling of key heat source parameters, improving the simulation optimization efficiency of the composite welding energy field model and the accuracy of weld morphology prediction.

An intelligent plasma stabilization system for a fusion reactor, consisting of: a plasma diagnostic acquisition module for acquiring real-time plasma operating data from a variety of reactor sensors; a real-time plasma state analysis module for generating dynamic plasma state models based on the acquired operating data; an AI-based instability prediction module for predicting plasma instability events using machine learning algorithms; a dynamic magnetic field optimization module for autonomously adjusting the magnetic confinement parameters in response to predicted plasma instability events; and a central intelligent fusion control module for coordinating the operation of the plasma stabilization system to maintain plasma confinement stability in the fusion reactor.

This application provides a method for optimizing the quasi-isomagnetic field line symmetry configuration of a stellarator, comprising: obtaining the original magnetic field of the stellarator's quasi-isomagnetic field line symmetry configuration; extracting all original magnetic traps from the original magnetic field, performing a three-step transformation of flattening-stretching-rearrangement on each original magnetic trap to obtain a reference magnetic trap corresponding to each original magnetic trap, and combining all reference magnetic traps to form a reference magnetic field; obtaining the magnetic field parameters of the original magnetic field and the geometric parameters of the stellarator, and constructing an objective function for optimizing the stellarator's quasi-isomagnetic field line symmetry configuration based on the magnetic field parameters, geometric parameters, preset constraint parameters, and preset weighting coefficients; iteratively optimizing the objective function, and outputting the optimized stellarator configuration parameters. The optimization method of this application, by combining magnetic trap transformation, objective function construction, and precise constraint conditions, can output accurate configuration parameters and obtain a stellarator configuration with better plasma confinement performance and reasonable engineering parameters.

This application discloses a superconducting magnet and testing device for plasma confinement. The superconducting magnet includes a superconducting coil, a cooling medium tank, and a cold screen. The two ends of the superconducting coil are connected to a superconducting power supply. The cold screen also has an abnormal energy discharge circuit and a quench failure energy discharge circuit. When the superconducting magnet malfunctions, the abnormal energy discharge circuit is activated; when the superconducting magnet loses quench, the quench failure energy discharge circuit is activated. This application connects the abnormal energy discharge circuit and the quench failure energy discharge circuit in parallel across the two ends of the superconducting coil. Both circuits contain resistors. When the superconducting magnet malfunctions or loses quench, a portion of the energy in the superconducting coil is rapidly released to the ambient temperature environment through the resistors, significantly reducing the cooling pressure of the cooling medium tank. This not only improves the safety of the superconducting coil but also shortens the cooling time of the cooling medium tank.

A magnetic confinement system includes a magnetic mirror device that includes a chamber to hold a target plasma and a coil arrangement to generate a magnetic field configuration in the chamber to confine the target plasma in cylindrically-symmetric form in the chamber, the magnetic field configuration having open ends. The magnetic confinement system further includes plasma guns to generate plasma pistons and project the plasma pistons at the open ends of the magnetic field configuration. In operation, the plasma pistons converge towards each other to close the open ends of the magnetic field configuration and to compress and heat the target plasma.

Systems and methods related to plasma-confinement devices are disclosed. A heat-sink chamber for a plasma-confinement device includes a base and a heat-sink structure protruding from the base. The heat-sink structure includes one or more heat sinks disposed on a surface of the heat-sink structure and configured to absorb thermal energy. The heat-sink structure further includes a lithium distributor configured to provide a flow of lithium to one or more surfaces of the heat-sink structure and at least one magnet configured to generate a magnetic field. The generated magnetic field includes a closed flux surface configured to confine a plasma and open field lines outside of the closed flux surface, the open field lines terminating at the one or more heat sinks.

The application relates to the field of intelligent welding simulation and control, in particular to an AI welding composite energy field model construction method based on a dynamic coupling mechanism. The method comprises the following steps: firstly, constructing an asymmetric rotating-inclined body laser energy field model, an arc energy field model considering plasma constraint and a dynamic coupling enhanced energy field model, and synchronously collecting multi-modal sensing data containing current voltage signals and molten pool images; then, using a pre-trained AI deep inversion network, mapping the extracted multi-modal feature vectors and process parameters into accurate plasma compression factors and synergistic effect coupling coefficients; finally, updating the heat flow density distribution through back substitution and superimposing to construct a composite energy field total distribution, and inputting the multi-physical field solver to perform transient fluid mechanics calculation. The application realizes inversion and real-time dynamic coupling of key heat source parameters, and improves the simulation optimization efficiency and weld appearance prediction accuracy of the composite welding energy field model.

Methods and systems are provided for Z-pinch plasma and other plasma confinement utilizing various electrode compositions and configurations. In one example, a plasma confinement system includes a plurality of electrodes, each electrode of the plurality of electrodes arranged coaxially with respect to an assembly region of the plasma confinement system and positioned so as to be exposed to the assembly region, wherein one or more electrodes of the plurality of electrodes includes an electrode material which releases hydrogen gas above a threshold temperature. In an additional or alternative example, a plasma confinement system includes an electrode body including a nosecone, and a liquid metal, a portion of the liquid metal forming a protective film between a surface of the nosecone and an exterior of the nosecone during operation of the plasma confinement system.

A plasma confinement ring and a plasma processing apparatus are disclosed. The plasma confinement ring includes: a first confinement ring body; and a plurality of first gas channels penetrating the thickness of the first confinement ring body and arranged radially along the first confinement ring body. The material of the first confinement ring body includes p-type silicon. The plasma confinement ring can better confine plasma and reduce plasma leakage.