8 results about "High energy particle" patented technology

The present application relates to the technical field of isotope production equipment, and particularly relates to a target capsule facilitating replacement of target material and a target material replacement method. The target capsule comprises: a first shell provided with a first recess, the opening of the first recess being located at the first end face of the first shell; a second shell provided with a second recess, the opening of the second recess being located at the first end face of the second shell; and a target material for receiving bombardment of high-energy particles to generate isotopes; wherein the first shell is embedded in the second recess and is threadedly connected with the second shell, the target material is installed in the first recess, and the bottom wall of the second recess covers the opening of the first recess. In the present application, the sealing structure of the target capsule is optimized to be the first shell and the second shell connected through a threaded structure, so that workers can conveniently assemble, disassemble and replace the target material of the target capsule, the sealing structure can be repeatedly used, and the production efficiency of isotopes is improved.

The invention discloses a method for analyzing long-term response of ozone in the Antarctic stratosphere to high-energy particle sedimentation, which comprises the following specific steps: firstly, acquiring vertical distribution characteristics of ozone from the Antarctic stratosphere to the middle layer from January to December in 30 years, and drawing a historical vertical distribution diagram; compiling a special method technical scheme for analyzing the long-term response of the ozone in the Antarctic stratosphere to the sedimentation of the high-energy particles, and carrying out technical disclosure to workers; then, the geomagnetic index is adopted as an agent index of high-energy particle sedimentation, a unary linear regression model of the southern hemisphere winter atmospheric variable is established, and the regression model is shown in the specification. The process that high-energy particles are settled and generated and conveyed to the stratosphere through polar region vortex and the ozone loss chemical process of the high-energy particles can be quantitatively analyzed, and the potential influence of extreme space weather events on an earth climate system can be conveniently evaluated.

The invention discloses a method and system for optimizing two-dimensional argon plasma uniformity by introducing a high-energy particle source, and the method comprises the steps: S1, filling a plasma reaction chamber with background gas, and simulating the distribution of neutral particles; s2, initializing the speed and the position of charged particles in the gas in the chamber, enabling the charged particles to be uniformly distributed in the chamber, and determining the intensity, the time sequence, the incident direction and the incident position of high-energy particles emitted by an external particle source; s3, calculation of charged particle density, potential and electric field; s4, calculating the force acting on the charged particles; s5, moving the charged particles; s6, checking and executing collision; and S7, repeating the steps S3 to S6, adjusting the high-energy particle injection time sequence until a steady state is reached, and obtaining the data distribution of the charged particles. Through controllable interaction between an external particle source and plasma or background gas, seed electrons-ions are actively generated in a specific space area or energy distribution is changed, and inherent space non-uniformity of the plasma is compensated.

The present application relates to the technical field of isotope production equipment, and particularly relates to a target capsule convenient to package and a packaging method thereof. The target capsule comprises: a support frame arranged in an annular structure with a through hole in the middle; a target material installed in the through hole, used for receiving bombardment of high-energy particles to generate isotopes; a first shell covered on one side of the support frame; and a second shell covered on the other side of the support frame; wherein a groove extending along the circumferential direction is arranged on the outer peripheral wall of the support frame, and the side wall of the first shell and the side wall of the second shell both extend to the groove opening of the groove and are welded to each other. In the present application, the groove is arranged on the outer peripheral wall of the support frame, and the first shell and the second shell are welded at the groove, so that welding between different materials can be avoided, and the welding position is transferred from the end face to the outer peripheral face, the probability of brittle failure of the welding seam is reduced, and the reliability of the target capsule is greatly improved.

The present application relates to the technical field of isotope production equipment, and particularly relates to a target capsule for isotope production and a manufacturing method thereof. The target capsule comprises a support frame, the middle part of the support frame is provided with a through hole; a target material is installed in the through hole, and is used for receiving bombardment of high-energy particles to generate isotopes; and an encapsulating shell is wrapped outside the support frame; wherein the support frame comprises a first support ring with the through hole as a ring hole, and a second support ring sleeved outside the first support ring. In the present application, the support frame is provided as two parts of the first support ring and the second support ring, so that when the target capsule is disassembled in a punching manner, the encapsulating shell can be easily cut off along the contact surface of the first support ring and the second support ring, the punching force applied on the target capsule can be greatly reduced, and the disassembling position is far away from the target material, so that the target material is prevented from being broken and the generation of radioactive dust is reduced.

The application relates to the technical field of fusion devices, and discloses a divertor and a cutting and welding method of a cooling pipeline of the divertor. The divertor comprises a box body and a plasma-facing component supported on the box body. The plasma-facing component comprises an inner target plate, an outer target plate and a dome which are connected. The inside of the box body is located below the dome and is provided with a first cooling pipeline and a second cooling pipeline which are connected in communication. The second cooling pipeline is perpendicular to the dome. The first pipeline is used for cooling the inner target plate and the outer target plate. The second cooling pipeline is used for connecting a coolant and cooling the dome. According to the application, the cooling pipelines of the inner target plate, the dome and the outer target plate are arranged in the box body which is relatively weak and is bombarded by high-energy particles at the lower part of the dome. The cooling pipelines are horizontally connected with the inner and outer target plates and are vertically connected with the dome. The pipelines are centrally arranged, so that cutting and welding are facilitated. Meanwhile, enough space is provided for maintenance tools to operate. The pipelines are rationally arranged and are convenient to operate.

The invention belongs to the field of magnetic confinement controlled nuclear fusion, and discloses a numerical calculation method and system for phase space distribution function evolution of helium ions in magnetic confinement deuterium-tritium fusion, and the method comprises the steps: carrying out the numerical stability verification based on a self-adaptive CFL condition, and determining a proper step size value, carrying out discretization processing on the input data by utilizing a multi-dimensional grid; establishing a Fokker-Planck equation containing friction, energy diffusion, position space transport and helium ion generation source items, and converting the Fokker-Planck equation into a difference format capable of being solved in a recursive manner through a finite difference method; in the calculation process, a corresponding boundary condition is set in combination with physical reality, a difference format of a boundary area is corrected, self-consistent updating is carried out on the main ion density based on a quasi-neutral condition, and information of evolution of a helium ion phase space distribution function along with time is obtained; and introducing an energy boundary judgment method related to the equivalent temperature of helium ash, distinguishing the helium ash from high-energy particles, and outputting a result of evolution of density profiles of the helium ash and the high-energy particles along with time.

The application belongs to the technical field of integrated circuits, and discloses a method for measuring high-energy particle ionization charge particle size, which comprises the following steps: performing irradiation experiments by adopting a mode in which a single high-energy particle is vertically incident on a static random memory circuit provided with multiple pages; in the irradiation experiments, a single event upset threshold of the multiple pages of the static random memory circuit is acquired; and based on the single event upset threshold of the static random memory circuit and a series inter-device spacing of the multiple pages, the high-energy particle ionization charge particle size is determined. The method for measuring high-energy particle ionization charge particle size provided by the application can realize reliable evaluation of the high-energy particle ionization charge particle size.