114 results about "Accelerated particle" patented technology

The invention discloses a multi-objective optimization method and system for a regional integrated energy system, and the method comprises the steps: constructing a multi-source input sequence sample; inputting a multi-source input sequence sample into the wind power and photovoltaic prediction model for processing, obtaining a current wind power and photovoltaic output optimization prediction result, calculating the current wind power and photovoltaic output optimization prediction result and a really constructed sample, obtaining a combined loss function value to train the model, obtaining the trained wind power and photovoltaic prediction model, processing the sample collected in real time, and obtaining a wind power and photovoltaic output prediction result. Outputting current wind power and photovoltaic output optimal values; and constructing an online optimization model of the integrated energy system, performing online optimization solution on the constructed model by an accelerated particle swarm optimization algorithm to obtain a control strategy of the energy system, issuing the control strategy to the energy equipment, and performing multi-target optimization scheduling. According to the method, the wind power and photovoltaic prediction model is combined with the accelerated particle swarm optimization algorithm, prediction errors are fully considered, and the stability and flexibility of the regional integrated energy system are enhanced.

The invention discloses a particle accelerator multi-particle dynamics efficient simulation method, system and device and a medium. The method comprises the steps that a small number of macro particles are sampled from an initial macro particle beam to form a new macro particle beam; performing multi-particle beam flow dynamics simulation on the new macro particle beams by adopting a PIC algorithm, and projecting the new macro particle beams to four two-dimensional phase spaces in a distributed manner to generate low-resolution phase diagrams of the four two-dimensional phase spaces; obtaining beam physical parameters based on the new macro particle beam; and inputting the low-resolution phase diagram and the beam physical parameters into a beam halo super-resolution network, and outputting a high-resolution phase diagram of each phase space to realize multi-particle beam flow dynamics simulation. Therefore, by combining a traditional numerical calculation method and an artificial intelligence technology, the problem that an existing artificial intelligence algorithm is weak in generalization ability in the field of beam dynamics simulation is solved, rapid and high-precision simulation of the large-scale multi-particle beam flow dynamics process is achieved, and the method is applied to the field of particle accelerator beam dynamics simulation.

The invention relates to the technical field of cooling of particle accelerators and nuclear power equipment, and discloses a cooling device suitable for high-power rays, which comprises an absorber assembly, a cooling water system assembly, a vacuum tube assembly, a shield assembly and a support assembly. The absorber assembly is formed by welding internal graphite and external copper through a brazing process, and air holes penetrating to a graphite layer are formed in the copper and communicated with an air cavity in the graphite to form a vacuum sealing cavity. The cooling water system assembly comprises a water segregator with two layers of water inlet ring cavities and two layers of water outlet ring cavities, and uniform flow distribution is ensured. And the absorber cooling water pipe is embedded into the copper and is connected with the U-shaped pipe to form a cooling loop. The electron beam bombards the graphite to generate heat, and the heat is transferred to the copper and taken away by cooling water in the cooling water pipe embedded in the copper. The shield assembly is arranged around the vacuum tube assembly to prevent radiation leakage. The cooling device realizes effective heat dissipation of 8GeV high-power rays, and has excellent radiation resistance and extremely long fatigue life.

The invention discloses a beam debugging method, device and equipment for a particle accelerator and a medium, relates to the technical field of accelerator debugging, and aims to enable each iteration process to have clear data support and ensure the accuracy of a beam debugging result by splitting an accelerator beam debugging process into a stage-cured reproducible process. The method comprises the following steps: creating flow configuration information of a particle accelerator according to a beam debugging task; on the basis of setting a debugging target, performing iterative debugging on the particle accelerator by using the process configuration information so as to generate setting information of a control variable according to an observation variable obtained by each iterative debugging; applying the setting information of the control variable to the actual particle accelerator and / or the virtual particle accelerator to obtain the current beam state output by the actual particle accelerator and / or the virtual particle accelerator; and if the iteration debugging process meets the iteration termination condition, generating a first beam debugging result according to the current beam state.

The invention provides a particle accelerator beam pipeline support member design method and a support system, and relates to the technical field of particle accelerators, and the particle accelerator beam pipeline support member design method comprises the following steps: classifying devices on a beam transport line into interference source devices and sensitive devices based on the electromagnetic characteristics of the devices and the structural relationship between the devices and a beam pipeline; supporting pieces are independently configured for a beam pipeline and various devices, and specific electrical isolation, grounding and filtering measures are adopted for different device types: an interference source device is connected with an electrostatic protection ground and is added with a filter; sensitive equipment and a beam pipeline are electrically isolated and are connected with a signal ground. Through systematic supporting and grounding architecture design, a coupling path of electromagnetic interference is fundamentally cut off, electromagnetic noise on a beam pipeline is remarkably reduced, a clean reference ground is provided for beam diagnosis and other weak signal systems, and high-reliability and high-precision operation of an accelerator is guaranteed.

The application discloses a strip type NEG (Non Evaporable Getter) pump for a particle accelerator and a use method thereof. The pump comprises a getter assembly, a fixing part, a vacuum flange and an electrode. One end of the getter assembly is provided with the fixing part, the fixing part is fixedly connected with one side of the vacuum flange, the other side of the vacuum flange is provided with the electrode, and the getter assembly is electrically connected with the electrode. The getter assembly comprises two or more getter strips, each getter strip is arranged side by side and fixedly connected with the fixing part at one end, and a gap is reserved between two adjacent getter strips. The use method is that the strip type NEG pump is inserted into a vacuum chamber along the axial direction of the vacuum chamber and then fixedly installed, each getter strip is parallel to the axis of the vacuum chamber, the vacuum flange is fixedly installed with the side wall of the vacuum chamber, and the electrode is externally connected with a power supply device. The application can effectively improve the uniformity of vacuum distribution, maintain a high vacuum degree, avoid misfiring of a beam, has a simple structure, is convenient to install, and can be adapted to the installation requirements of the accelerator vacuum chamber in a large range.

The invention provides a cyclotron electrostatic deflection plate beam loss heat source reconstruction method, and relates to the technical field of particle accelerator thermal analysis and multi-physics field coupling calculation, and the method comprises the steps: 1, configuring beam dynamics simulation parameters, multi-particle tracking is carried out under a three-dimensional field graph containing a central area electromagnetic field, a harmonic coil magnetic field and an electrostatic deflection electric field, and a particle loss list is generated; step 2, transferring the particle loss list into a beam source file of a Monte Carlo radiation transport program, configuring Monte Carlo parameters including a deflection plate material, a boundary, a particle type and an energy spectrum, executing particle transport simulation, and obtaining a three-dimensional energy deposition matrix on an electrostatic deflection plate element; according to the method, high-resolution heat source reconstruction is realized, the peak temperature rise calculation error of the deflection plate can be reduced, a temperature field solving result can be fed back to optimize the particle source, and a reliable basis is provided for thermal structure design and cooling optimization of the electrostatic deflection plate.

The invention relates to the technical field of particle accelerators, and provides a medium-assisted acceleration structure and method for realizing low loss and high acceleration gradient by using a low-temperature environment. The structure comprises a medium-assisted acceleration structure body and a low-temperature maintenance and control system, the medium-assisted acceleration structure body comprises a medium layer and a metal cavity to provide electromagnetic field distribution, and the low-temperature maintenance and control system is integrated on the body to maintain the working temperature of the body to be less than or equal to 77K, reduce resistance and dielectric loss and improve a radio frequency breakdown threshold; according to the invention, the radio frequency breakdown threshold is increased at a low temperature, so that the acceleration structure stably operates under higher electric field intensity, and the particle energy gain is increased; the metal resistivity and the dielectric loss are synchronously reduced, the total power loss is reduced, and the energy efficiency is improved; micro-discharge and gas desorption effects are inhibited, the structural stability is improved, and the service life of equipment is prolonged; through low-temperature adaptive design and systematic integration, electromagnetic performance and mechanical reliability are ensured, and the synergistic advantage of low temperature and medium assistance is exerted.

The invention relates to the technical field of particle accelerators, in particular to a compact rotary thin-wall beam transmission vacuum system and a design method. The beam transmission vacuum system comprises: a first transmission unit, one end of which is provided with a first bifurcated thin-wall dipolar iron vacuum chamber to form a first branch and a second branch; one end of the second transmission unit is connected with the second branch, and a second bifurcated thin-wall dipolar iron vacuum chamber and a third bifurcated thin-wall dipolar iron vacuum chamber are sequentially arranged in the second transmission unit to form a third branch, a fourth branch and a fifth branch; the fixed treatment terminal is connected with the first branch; and rotating the treatment terminal to provide the beam to one of the plurality of treatment rooms in an alternative manner. According to the invention, an intensive architecture that a single rotary treatment terminal provides particle beams for a plurality of treatment rooms at the same time is adopted, so that the equipment manufacturing cost is greatly reduced, the equipment utilization rate is improved, and the treatment cost is reduced.

The invention relates to an experimental platform for particle accelerator material irradiation, which comprises a six-dimensional mechanical arm, a camera and light spot identification system, a rotary grasping clamp and an integrated control system, and is characterized in that the camera and light spot identification system is used for acquiring a particle beam light spot image on a scintillator in real time, and transmitting data to the integrated control system; the integrated control system accurately calculates the real-time spatial position deviation of the sample relative to the center of the irradiation beam; then the six-dimensional mechanical arm is driven to dynamically adjust the posture compensation deviation, and meanwhile, the rotary gripper is controlled to stably clamp the sample and rotate by 360 degrees, so that accurate and flexible positioning, uniform irradiation, stable clamping and real-time monitoring and correction of the sample are realized, and the precision, reliability and efficiency of an experiment are improved; and an efficient, stable and intelligent experimental tool is provided for particle accelerator material irradiation research.

The invention provides an online self-checking method and system for a parallel plate ionization chamber and a beam loss monitoring system, and relates to the technical field of particle accelerators, the parallel plate ionization chamber comprises a bias pole plate and a signal pole plate, and a composite voltage formed by superposing a DC bias voltage and a preset low-frequency AC oscillation voltage is applied to the bias pole plate; a test current with the same frequency as the low-frequency alternating-current oscillation voltage is induced on the signal pole plate by using the natural capacitance between the bias pole plate and the signal pole plate; the test current is collected and analyzed to obtain at least one preset characteristic parameter, and the characteristic parameter comprises a quantity related to the magnitude or period of the test current; and comparing the characteristic parameters with a preset reference value so as to judge the health states of the parallel plate ionization chamber and the signal measurement link thereof. According to the invention, a radioactive source and a complex mechanical structure do not need to be additionally arranged, and online self-inspection with high reliability and comprehensive diagnosis of the parallel plate ionization chamber can be remotely realized.

The present disclosure provides an ultra-thin vacuum transition device and pressure difference elimination system, which can be applied to the field of particle accelerator technology. The vacuum transition device comprises: a vacuum transition film configured as a non-metal film with a thickness less than 0.1 mm, two sealing connectors respectively arranged on both sides of the vacuum transition film and connected to a particle beam pipeline. The vacuum transition device can realize the transition of the vacuum gradient in a super wide range while greatly reducing the energy loss of the particle beam. The pressure difference elimination system can accurately control the pressure on both sides of the vacuum transition film during the vacuum pumping and air amplification stages, thereby eliminating the pressure difference on both sides of the vacuum transition film during use to avoid bearing a large gas pressure, which can significantly reduce the risk of film structure damage, greatly increase the service life of the vacuum transition film, and ensure that the ultra-thin film structure vacuum transition device can realize long-term safe and stable operation.

This invention provides a multi-cavity tuner control system and method for high-frequency cavities in particle accelerators, belonging to the field of particle accelerator technology. The system includes: a field-programmable gate array (FPGA) communicatively connected to multiple high-frequency cavities, used to acquire cavity sampling signals and incident reference signals from the multiple high-frequency cavities, and generate corresponding phase difference information for the high-frequency cavities based on the cavity sampling signals and incident reference signals; an embedded computer communicatively connected to the FPGA, used to generate control commands based on the phase difference information; and multiple tuner actuators, each corresponding to a high-frequency cavity, which are communicatively connected to the embedded computer via an industrial Ethernet bus, used to adjust the resonant frequency of the corresponding high-frequency cavity according to the control commands. This invention achieves high-precision, high-synchronization, and automated tuning of the multi-cavity tuner.

A method of manufacturing a cyclotron (10) for producing a beam (18) of accelerated particles comprises the following steps: A cyclotron set-up is defined, the cyclotron set-up including a number of sectors (12) having an RF cavity (14, 16) of the cyclotron (10), an arrangement of the sectors (12) relative to each other and a cavity type for each of the sectors (12) selected from the group comprising acceleration cavities and flattop cavities. Then, a beam path in the cyclotron (10) is determined for a default operation mode and at least one beam path in the cyclotron (10) is determined for a cavity failure mode in which the radio-frequency cavity (14, 16) of one or more of the sectors (12) is not operational. A position of an extraction device (20) of the cyclotron (10) within the sectors (12) is calculated based on the determined beam paths, and the extraction device (20) is placed at the calculated position. Further, a cyclotron (10) and a method for operating a cyclotron (10) is described.

Aspects herein describe new methods of determining optimal actions to achieve high-level objectives based on an optimized chosen statistic. At least one high-level objective, along with various observational data about the world, is identified by a computational unit. The computational unit determines, through a particle method, an optimal course of action. The particle method is doubly-exponentially accelerated based on one or more acceleration methods. The doubly-exponentially accelerated particle method comprises alternating backward and forward sweeps of a coupled induction loop to optimize a selection policy and test for convergence to determine said optimal course of action. The doubly-exponentially accelerated particle method may be applied in multiple different time scales.

The invention provides a tandem double-target-chamber irradiation device, and belongs to the technical field of application of particle accelerators. The device comprises a differential section vacuum cavity, a first irradiation target chamber and a second irradiation target chamber which are connected in sequence. And a first quadrupole magnet, a second quadrupole magnet and an octupole magnet are arranged in the differential section vacuum cavity and are respectively used for defocusing, focusing and homogenizing beam flow. The first irradiation target chamber is provided with a liftable target frame and is isolated from the second irradiation target chamber through a gate valve. The device is configured to automatically switch beam modes under the condition of maintaining high vacuum by controlling starting and stopping of the magnet, lifting of the target material frame and opening and closing of the valve, and samples in the two target chambers are subjected to continuous irradiation with high and low particle number densities in sequence. The device has the advantages of high precision, high cleanliness, high efficiency, compact structure and low cost.

Disclosed is an electric propulsion system (110, 210) utilizing particles collected from atmosphere, the electric propulsion system having a first end (112) facing, when in use, incoming flow of particles (102, 202) and an exit aperture (252) at a second end (114) to eject accelerated particles to generate thrust, the electric propulsion system comprising an active intake module (220, 320A, 320B, 320N) having an opening (222, 322A, 322B, 322N), an active compression mechanism (224) and a first output (226); a guiding channel (230, 330) comprising a splitter (332, 432); the ion thruster; and the cathode.

This invention relates to the field of low-temperature superconductivity and particle accelerator technology, and particularly to a collimation structure and collimation method for a superconducting accelerator unit. The collimation structure includes: a vacuum chamber with a cavity for providing an adiabatic vacuum environment; a cold mass string disposed within the cavity of the vacuum chamber; a cold support frame for supporting the cold mass string; and a support member disposed between the vacuum chamber and the cold support frame to reduce heat transfer. The vacuum chamber includes a base plate, and the support member engages with the base plate and the cold support frame in three dimensions according to a Cartesian coordinate system to decouple the positioning of the cold mass string within the vacuum chamber. In this invention, by decoupling the positioning of the cold mass string, it is unnecessary to perform collimation measurements and adjustments on each cold mass element, thus reducing on-site integration workload and improving the acceleration and focusing efficiency of the accelerator beam, thereby enhancing beam quality.

The invention relates to the technical field of particle accelerators, in particular to a high-precision scanning magnet suitable for low-field ultrahigh frequency. The scanning magnet comprises a magnet module provided with an iron core assembly and a coil assembly; the supporting module is provided with a supporting seat, a first supporting assembly and a second supporting assembly; the first supporting assembly and the second supporting assembly are respectively connected with the supporting seat in a sliding manner and are arranged along a straight line, the iron core assembly is fixed on the first supporting assembly, the coil assembly is fixed on the second supporting assembly, and the iron core assembly and the coil assembly are not in contact with each other. According to the invention, the structure of the scanning magnet is optimized, and different supporting assemblies are used for independently supporting the iron core assembly and the coil assembly, so that the iron core assembly can be prevented from being damaged by high-frequency vibration of the coil assembly under an ultrahigh-frequency operation condition, and the magnetic field precision of the scanning magnet can be improved; therefore, the scanning magnet can stably perform high-precision scanning on the particle beam for a long time.

The invention discloses a particle accelerator operation mode switching control method, system and device and a medium, relates to the technical field of particle accelerator control, can dynamically reconstruct a device operation safety boundary according to different operation scenes, and realizes self-adaptive matching of safety constraints and operation modes. The method comprises the following steps: defining a mode object and configuration information of the mode object in a mode library; in response to a switching instruction of the operation mode, acquiring comprehensive configuration information of a to-be-activated mode object in a mode library according to a to-be-activated mode identifier; issuing the equipment parameter configuration information and the security constraint configuration information of the to-be-activated mode object to a target equipment controller, so that the target equipment controller adjusts an equipment running state according to the equipment parameter configuration information; and issuing the operation authority configuration information of the to-be-activated mode object to an access security module of the underlying control network, and controlling the access security module to switch the operation authority to a state matched with the to-be-activated mode.

The invention relates to a high-current pulse proton accelerator beam synchronous control system and method, belongs to the technical field of particle accelerator control, and solves the problem of high operation risk of a high-current pulse proton accelerator in the prior art. The beam synchronous control system comprises a beam control system, a particle source acceleration power supply system, a particle source extraction power supply system and each high-frequency acceleration cavity system; the beam control system determines a beam mode and a beam pulse width according to a received user beam output instruction, and synchronously sends a boost event code to the particle source acceleration power supply system and a turn-off event code to the particle source extraction power supply system; the particle source acceleration power supply system, the particle source extraction power supply system and each high-frequency acceleration cavity system respectively trigger hard interruption after receiving corresponding event codes, and execute corresponding events in the hard interruption to realize synchronization of beam current and high-frequency feedforward. And the operation risk is reduced.

The invention relates to a bifocal mode petal accelerator, which belongs to the field of particle accelerators and comprises an injection section, an energizing section, a focusing section and a conversion target, the injection section comprises an electron gun, a bunching element, a solenoid and a collimator; the energizing section comprises a coaxial radio frequency acceleration cavity and a chromatic dispersion deflection structure around the coaxial radio frequency acceleration cavity; the focusing section comprises a quadrupole magnet group or a solenoid; the conversion target is a rotating target and comprises an inner circle and an outer ring which are of a concentric structure. Specific design is used in a petal-shaped accelerator, the petal-shaped accelerator comprises an achromatic deflection structure, a collimator, a quadrupole magnet set and the like, the beam focus and X-ray focal spot size of a high-energy X-ray source of the petal-shaped accelerator are compressed to 10 [mu] m level, and the innovatively designed bremsstrahlung conversion target based on concentric partition of a target surface is provided. And the compatibility of a single petal accelerator X-ray source to two focal spot size working modes is realized.

The present application relates to a gas target system (100) having: a body (110) having a frustoconical chamber; a cooling circuit having at least one channel surrounding at least a portion of the chamber; a window positioned facing the inlet of the chamber to enclose the chamber, the window having a thin plate that is transparent to at least a portion of the particle beam emitted by the particle accelerator and a support grid configured to withstand a pressure difference between an interior of the chamber and an exterior of the gas target system (100), the thin plate positioned between the support grid and the chamber (120); and a flange support (160) holding the window, sealingly secured to the body, having a mechanical fastening interface for fastening to an outlet of a particle accelerator (170).

This invention relates to the field of particle accelerator technology, and more particularly to a beam terminal membrane window, a beam terminal, and a particle accelerator. The beam terminal membrane window includes a pressure plate, a sealing plate, an isolation membrane, and a sealing protection structure. The sealing protection structure is located on the sealing plate and at the edge of the working window. The sealing protection structure includes a transition surface and at least two levels of protective recesses. The sealing protection structure is used to seal the isolation membrane between the sealing plate and the pressure plate, utilizing the various levels of protective recesses to reserve space for the recessed isolation membrane from the sealing connection surface to the vacuum environment side, forming a stepped space. The stepped space and the transition surface work together on the working window to achieve a synergistic effect of sealing and space protection. Under conditions of large scanning area and highly uniform beam passage, this beam terminal membrane window can seal and isolate the inside and outside of the accelerator device, ensuring reliable particle beam passage and effectively improving the sealing performance and safety of the accelerator device.

Aspects herein describe a new approach to determining optimal actions for achieving advanced goals based on optimized selection statistics. At least one advanced target and various observation data about the world are identified by a computing unit. The calculation unit determines an optimal action process by a particle method. The particle methodology is double exponentially accelerated based on one or more acceleration methodologies. A dual exponential accelerated particle method includes alternately coupling reverse and forward scans of inductive cycles to optimize selection strategies and test convergence to determine the optimal process of action. In one embodiment, a user inputs advanced targets into a cell phone that senses observation data. The cellular phone communicates with a server that provides instructions. The server determines an optimal process of action via a dual exponential accelerated particle approach, and then the cellular phone displays instructions to the user.

The application provides a storage ring double-time-of-flight detector collimation system and method, and relates to the technical field of particle accelerator collimation. The system comprises: a structured laser beam generator, which outputs a structured laser beam with a central bright spot and a concentric circular ring structure; a long-distance reference establishment module, which comprises first and second photoelectric sensors positioned on a theoretical beam center line respectively, and the structured laser beam simultaneously passes through the light-sensitive centers of the first and second photoelectric sensors to establish a straight line reference; and a detector alignment assembly, which comprises a third photoelectric sensor mounted on the double-time-of-flight detector and having a light-sensitive center coinciding with the geometric center of the double-time-of-flight detector, the third photoelectric sensor being used to detect the position of the light spot center to obtain a deviation value of the detector relative to the straight line reference, so as to guide the adjustment of the position of the detector. The application completely eliminates the measurement failure problem caused by the laser penetration of the traditional total station through the carbon film, overcomes the precision limitation of the non-prism scanning, and realizes the high-precision and high-reliability collimation of the double-time-of-flight detector.

The invention discloses an accelerator ignition probability prediction model construction method, a prediction method and a control system, and the method comprises the following steps: S1, respectively collecting the operation parameter data of an accelerator in a normal operation state and an ignition operation state, and carrying out the data marking; s2, performing data fusion on the operation parameter data to obtain a plurality of operation parameter arrays; s3, dividing each operation parameter array into a training set, a verification set and a test set; and S4, training a first preset model by using the training set, and then performing evaluation by using the verification set and the test set to obtain an accelerator ignition probability prediction model. According to the method, the technical problems that the particle accelerator is low in operation reliability, high in maintenance cost and short in service life due to the fact that ignition event positioning and troubleshooting of the particle accelerator are extremely difficult, a response and protection mechanism is delayed and more importantly, the ignition phenomenon of the accelerator is difficult to predict can be solved.

An electric propulsion system 210, utilizing particles collected from atmosphere, has an intake 112 facing an incoming flow of particles 202 and an exhaust 252 to eject accelerated particles to genera

The application discloses a medium laser acceleration system and method, the medium laser acceleration system comprises a laser system for providing a high-power laser pulse; a particle injection source for providing a charged particle beam; a medium laser acceleration device for generating a high-gradient acceleration electric field; an information acquisition module for acquiring parameters of the particle beam; a diagnosis module for diagnosing a state of the particle beam and electromagnetic field transmission characteristics of the medium laser acceleration device; and a controller connected to an output end of the diagnosis module and a controlled end of the laser system, for acquiring a preset energy value of the high-energy particle beam and determining a target power and time sequence of the laser pulse according to the preset energy value. The application further provides a medium laser acceleration method based on the above medium laser acceleration system. Compared with prior art solutions, the application can provide a high-energy particle beam while reducing the size of a particle accelerator.