59 results about "High radiation" patented technology

Assembly for determining a characteristic of a structure on a substrate, comprising a radiation illumination dipole having first and second sources that are angularly offset to a transverse direction in an illumination pupil plane. The first and second sources irradiate a structure having a periodically repeating pattern along a transverse. A multi-part wedge is located in an exit pupil of the assembly, configured to receive from the structure: a lower radiation order and a higher radiation order of diffracted radiation of the first source on a first part of the multi-part wedge, and a lower radiation order and a higher radiation order of diffracted radiation of the second source on a second part of the multi-part wedge. A detector receives a first and second spatially separated images formed from first and second source radiation incident on the first and second parts of the wedge, respectively.

This invention relates to the field of radiation leakage detection technology, and discloses a radiation leakage detection method and apparatus based on a target sensor. The method includes: determining the current state of a radiation device, and acquiring a first set of radiation data of the radiation device in the current state based on the target sensor corresponding to the radiation device and according to the acquisition mode corresponding to the current state; determining whether the radiation device has experienced radiation leakage based on the first set of radiation data and a preset radiation threshold; when radiation leakage occurs, determining the radiation leakage level, and triggering a radiation leakage alarm based on the radiation leakage level. Therefore, this invention can achieve real-time leakage monitoring of radiation devices, adapt to the detection needs of different working states, accurately identify radiation leakage risks and quickly trigger alarm measures, effectively improve the active safety protection capability of radiation devices, and promptly ensure the radiation safety of operators and surrounding personnel, thereby improving the safety and stability of radiation device use.

The application discloses a shortwave miniaturized antenna based on electromagnetic super-metamaterial resonance mechanism and belongs to the technical field of wireless communication and antenna. The antenna comprises a main radiator, a plurality of electromagnetic super-metamaterial resonance units and a feeding structure, wherein the physical length of the main radiator is far less than the working wavelength; the super-metamaterial resonance units are arranged in the near-field region of the main radiator and are strongly coupled with the main radiator, magnetic resonance or electric resonance is generated at a target shortwave frequency point, a frequency splitting effect is generated, the resonance frequency of the antenna is greatly reduced, and deep miniaturization is realized; and the feeding structure is used for coupling radio frequency energy. The application can reduce the size of the shortwave antenna to less than 1 / 5 of the size of a conventional antenna, meanwhile, a relatively high radiation efficiency is maintained, frequency electric tuning can be realized through integrated adjustable elements, and the application is suitable for shortwave communication occasions with limited space, such as mobile platforms and portable devices.

The application discloses a kind of based on low-loss anti-resonance hollow waveguide broadband high-efficiency leaky-wave antenna design method and structure, its technical scheme includes: first based on anti-resonance principle design single dielectric wall hollow waveguide;Further introduce second dielectric wall optimization form double dielectric wall anti-resonance hollow waveguide, significantly enhance the transverse restraint to electromagnetic energy in air cavity by cascading reflection effect, realize super low loss transmission;Finally, etching periodic radiation slot in the upper layer metal plate of double dielectric wall hollow waveguide, construct leaky-wave antenna with frequency scanning function.The application uses air as main transmission medium, fundamentally reduces dielectric loss, so that the antenna has ultra-low transmission loss and ultra-high radiation efficiency in wide frequency band, while the structure is simple, process compatibility is strong, only through standard PCB process can be realized, can be widely used in 5G / 6G communication, millimeter wave radar, terahertz imaging and other high-performance wireless systems.

This invention provides a foldable device and a laptop computer. The radiation enhancement device includes: a hinge, a top cover, a base, an antenna, and a radiating slot area. The top cover and the base are rotatably connected via the hinge. A connection gap exists between the hinge and the base. The antenna is disposed at the connection between the hinge and the top cover. A radiating slot area is provided on the base at the antenna projection position. The radiating slot area includes multiple radiating slots, which are used to collect and re-radiate the energy emitted by the antenna. The radiating slots are connected to the connection gap to form a secondary radiation system, thereby achieving the collection and transfer of radiated energy, effectively reducing mutual interference between the two antennas, and improving isolation. Furthermore, this embodiment also provides a virtual feed point at the edge of the connecting slot within the radiating slot area. The virtual feed point works collaboratively with the radiating slot area to optimize antenna performance and improve radiation efficiency.

The application discloses a kind of wastewater treatment devices of coaxial radiation antenna combined with power division structure, belong to microwave heating technical field, including power division combined waveguide coaxial conversion component, coaxial transition connecting component, coaxial slot radiator and polytetrafluoroethylene external protection device;The power division combined waveguide coaxial conversion component adopts BJ9 standard waveguide port to feed microwave, it is converted into coaxial transmission mode by stepped impedance matching structure, and its output end is two air coaxial ports with high power capacity;The coaxial transition connecting component is used to connect power division combined waveguide coaxial conversion component and coaxial slot radiator, and the length can be adjusted according to wastewater treatment depth;Coaxial slot radiator: the outer conductor of the coaxial slot radiator is provided with an I-shaped slot array, and the bottom of the coaxial slot radiator is slotted and filled with polytetrafluoroethylene medium, the application has the technical effects of high microwave energy transmission efficiency, good radiation uniformity, dynamic impedance matching optimization, equipment corrosion resistance, pollution prevention and strong structure adaptability.

The utility model discloses a kind of high radiation-tolerant underwater lamps, belong to underwater lamp technical field, solve when needing to the environment of different positions below water surface is clearly collected, then it needs to adjust the irradiation angle of underwater lamp, and ensure that the angle of underwater lamp cannot appear the situation of shaking due to the impact of water flow, otherwise it can cause the problem of influence to the environment collection below water surface. Including lamp shell, and a plurality of lamp bodies are set on lamp shell, the back of the lamp shell is fixedly connected with a set of hinged frame. When the utility model adjusts the angle of underwater lamp, traction electromagnet is powered off, elastic push-pull rod pushes away limit rod from tooth groove, friction strip is displaced under waterproof electric push rod control, the convex of friction sleeve and friction wheel increases friction coefficient, realizes that transmission ratio increases, friction wheel drives hinged frame and lamp body to rotate, completes angle adjustment. After adjustment, traction electromagnet is powered on, pull limit rod and embed tooth groove, fixed turntable, prevent underwater lamp from being affected by water flow and shaking.

This application discloses a magnetically responsive self-peelable membrane, its preparation method, and its application, belonging to the technical field of gamma pollution removal materials. The magnetically responsive self-peelable membrane comprises an ionic liquid, a film-forming matrix, a dispersion medium, a surfactant, a thickener, and a colorant. The ionic liquid is a magnetic imidazole onyx salt containing terbium, dysprosium, or gadolinium, imparting magnetic responsiveness to the membrane. The preparation method includes sequentially dissolving raw materials to prepare a mixture, coating the mixture onto the contaminated area by spraying or brushing to form a film, and achieving self-peeling using an electromagnet / permanent magnet. This application solves the problems of difficult mechanical peeling and high radiation risk of manual peeling in existing technologies, achieving non-contact, integrated peeling, with a removal rate of 78%~93% for gamma pollution on stainless steel surfaces, effectively avoiding secondary pollution.

The application provides a broadband slot scattering flat panel antenna applied to the field of communication systems. The antenna comprises, from top to bottom, a radome, a radiation slot layer, a coupling cavity layer and an H-T type broadband ridge waveguide feed network layer; the radiation slot layer comprises a radiation cavity, the bottom of the radiation cavity is provided with a plurality of radiation slots arranged uniformly and at intervals, and a radiation metal ridge is arranged between two adjacent rows of radiation slots; the coupling cavity layer comprises a plurality of coupling cavities, each coupling cavity corresponds to an antenna unit, each antenna unit comprises four radiation slots, the bottom center of each coupling cavity is connected with a ridge waveguide through a coupling slot, and the coupling slot is located on one side of the center of the wide side of the ridge waveguide; the H-T type broadband ridge waveguide feed network layer is internally provided with an H-T type broadband ridge waveguide feed network composed of a plurality of ridge waveguides, and a taper pin type power distribution is adopted to perform amplitude and phase weighting on input excitation signals so as to radiate out through the radiation slots. The antenna has an ultra-low profile, a lightweight design and higher radiation efficiency.

A multilayer thin film radiation refrigeration device based on photonic crystal sideband relates to a radiation refrigeration device. The multilayer thin film is sequentially provided with an impedance matching layer, a high-loss metal titanium layer, a one-dimensional photonic crystal, a phase compensation layer, a uniform optical thick reflective film and a supporting substrate layer from top to bottom; the one-dimensional photonic crystal is composed of infrared transparent dielectric materials with high and low refractive indexes; the sideband of the photonic crystal is used to realize wideband wide-angle high reflection, the high-loss metal titanium layer and the impedance matching layer are used to excite wideband response and improve the absorption rate, the phase compensation layer is used to control the change of the propagation phase, the wideband wide-angle absorption characteristics of the atmospheric transparent window are formed, and the passive radiation refrigeration function is realized. Compared with others, the present application can be made in a large area without photolithography, and has high radiation refrigeration power.

The application discloses a kind of scintillation detector monitoring method, device, equipment and medium, the method includes: the light-emitting lifetime of original scintillator in scintillation detector is obtained;If light-emitting lifetime is greater than preset light-emitting lifetime threshold, replacement instruction is sent to replace original scintillator with target scintillator, so that the light-emitting lifetime of target scintillator is within preset light-emitting lifetime threshold, wherein the dielectric constant of organic layer in target scintillator is less than the dielectric constant of organic layer in original scintillator.By replacing original scintillator, the target scintillator after replacement has an organic layer with a lower dielectric constant than the original scintillator.By using an organic material with a smaller dielectric constant for the organic layer without changing the inorganic layer, the light-emitting lifetime of the scintillator can be effectively reduced to meet the demand for higher time resolution in the field of radiation detection.This method is simple and effective, and has a significant effect on improving the time resolution in the field of radiation detection.

The present application relates to the field of nuclear power plant field operation control technology, in particular to a kind of multi-action device collaborative operation control method and system. Including: multi-modal control terminal cluster, control safety control mechanism design module, collaborative control hub and high-reliability communication link module. The present application has the advantages that: it can realize the safe and efficient collaborative operation of multi-action device in the special environment of strong electromagnetic, high radiation and high noise in nuclear power plant, effectively solve the problems of multi-terminal control permission ambiguity, frequent instruction conflict and operation non-traceability, improve the operation safety, collaborative efficiency and compliance, effectively improve the overall operation efficiency and performance of the system.

The application provides a miniaturized multi-port high-suppression base station antenna, and relates to the technical field of base station antennas.The miniaturized multi-port high-suppression base station antenna comprises a metal reflecting plate and three low-frequency radiation arrays arranged on the metal reflecting plate; each low-frequency radiation array comprises a plurality of large-aperture radiation units and a plurality of small-aperture radiation units, and each low-frequency radiation array is a non-linear array. The miniaturized multi-port high-suppression base station antenna is characterized in that: the large-aperture radiation units and the small-aperture radiation units are arranged in an array, and the radiation units are reasonably arranged on the metal reflecting plate 1 in combination with a non-linear array distribution mode; the horizontal beam width is reduced on the basis of miniaturized design, the front-to-back ratio is improved, the suppression between arrays is improved, the intercell interference is reduced, and the radiation efficiency is improved; thus, the product is smaller and lighter under the premise of ensuring product quality, and the miniaturization purpose is achieved.

This invention discloses a broadband circularly polarized microstrip array antenna based on a hybrid S-shaped aperture and metasurface, belonging to the field of wireless communication antenna technology. The antenna employs a multi-layer stacked structure, comprising, from top to bottom, a first dielectric substrate, a second dielectric substrate, and a third dielectric substrate, and on the surfaces of each substrate are a metasurface radiating layer, a slot coupling layer, a microstrip feed network layer, and a metal grounding shield layer. The metasurface radiating layer is composed of periodically arranged rectangular metal patches; the slot coupling layer is etched with centrally symmetrical S-shaped bends; the microstrip feed network adopts a 2×2 sequential rotation architecture, providing excitation signals of equal amplitude and sequentially 90° phase difference. This invention increases the effective electrical length of magnetic flux through a topology-optimized S-shaped slot structure, achieves ultra-wideband characteristics through the hybrid resonance of slots, patches, and metasurfaces, and compensates for impedance singularities using sequential rotation feed technology, thus achieving wide bandwidth, high gain, high radiation efficiency, and excellent circular polarization performance.

The application discloses a dynamic resolution ultrasonic phased array haptic generation device and a control method, relates to the technical field of ultrasonic haptic feedback, and realizes the software adjustment of the ultrasonic haptic focus size through an EDM beam forming algorithm, thereby breaking through the limitation of the traditional DAS method which is limited by hardware. Users can dynamically select a high resolution mode or a high radiation force mode according to specific application scenarios, and the flexibility and reality of haptic interaction are significantly improved. The system structure is compact, all adjustments are completed through software, hardware does not need to be changed, and the system is convenient to integrate into intelligent automobile central control, AR / VR headgear, interactive exhibition stands and other equipment, so that more rich and adaptive haptic experiences are provided for human-computer interaction. Under the premise of not changing the hardware structure, the system optimizes the phases and amplitudes of all channels of the ultrasonic array through the software algorithm of the upper computer, and cooperates with the hardware logic control of the FPGA controller to realize the dynamic control of the spatial resolution of the haptic focus and the generation of multiple foci.

The present application relates to a kind of far infrared heater of microcrystalline ceramic composite material, belong to far infrared heater technical field, including insulating substrate layer, electrode system, heat-conducting transition layer, microcrystalline ceramic radiation layer, the insulating substrate layer uses aluminum nitride ceramic plate, the electrode system uses embedded molybdenum metal grid electrode, the electrode system is set to insulating substrate layer, the heat-conducting transition layer uses silicon carbide nanowire reinforced alumina, the heat-conducting transition layer covers electrode system, the microcrystalline ceramic radiation layer is combined in heat-conducting transition layer.In the present application, compared with the radiation efficiency of only 0.6-0.8 of traditional metal heating body, emissivity ≥0.94 is adopted microcrystalline ceramic composite material radiation layer, with high radiation efficiency, laser microcrystallization surface layer forms nanoscale grain, can effectively shorten heat conduction path, to reduce heat consumption, more energy saving.

The utility model belongs to the field of light radiation test technology especially relates to radiation test system, including work table, rotary table, clamping mechanism, support column, lifting mechanism, test antenna, be equipped with rotatable rotary table on work table, the centre of rotary table is equipped with positioning hole, rotary table still is equipped with clamping mechanism, is used for clamping the lamp to be measured, makes the lamp to be measured axis perpendicular to positioning hole axis, work table one side is equipped with support column, be equipped with lifting mechanism on support column, the lifting end of lifting mechanism is connected with an installation frame, and test antenna is installed on the installation frame, makes test antenna towards clamping mechanism. Adjust the ground clearance of test antenna through lifting mechanism, can ensure that the light emitting surface center of lamp to be measured and test antenna keep the same horizontal plane, improve the precision of radiation detection. Then rotate rotary table again, adjust the light emitting angle of lamp and the height of lifting test antenna, capture the maximum radiation value of lamp space distribution, ensure the accuracy of test, reduce the detection blind area.

The present application relates to a kind of spent fuel insoluble residue processing and analysis method, comprising extracting residue, drying and weighing, strengthening dissolution, analyzing residue heavy uranium plutonium content and the like steps;Among them, through blank filter membrane contrast and eluent double baseline control, the interference influence of the filtration process in residue analysis is significantly reduced, so that nuclear material weighing result is more quantitative and reliable, conservative and reliable.Through in small sample amount, high radiation, complex multiphase matrix condition, using optimized mixed acid system proportioning and reaction time / temperature window, the full dissolution of trace target nuclide uranium / plutonium is realized, the purpose of quantitative analysis of target nuclide in high radioactivity residue is achieved, to ensure the accurate determination and safe and efficient processing of target nuclide in residue.The present application will soluble nuclide be transferred into liquid phase as far as possible, the source item intensity and volume of high-level solid residue are reduced to the greatest extent, the burden of final radioactive waste disposal is reduced, and it is suitable for insoluble residue component analysis in nuclear fuel reprocessing plant.

The invention relates to a hybridization probe mixed solution for radiation biological dose detection as well as a preparation method and a product thereof, and belongs to the field of molecular cell genetics. The technical problem to be solved is to provide a hybridization probe mixed solution with significantly improved chromosome distortion recognition accuracy and sensitivity, higher detection efficiency and better repeatability. According to the key point of the technical scheme, the hybridization probe mixed solution is composed of a probe and a hybridization buffer solution, the volume ratio of the probe to the hybridization buffer solution is 1: (50-1000); the hybridization buffer solution is a 40%-70% formamide solution containing 10 to 20 mM of Tris-HCl or PBS (Phosphate Buffer Solution). When the hybridization probe mixed solution is used for radiation biological dose detection, the distortion identification accuracy and sensitivity are high, the radiation dose estimation precision is high, and the operation is convenient.

This invention provides a radiosensitive linear composition capable of forming a hardened film with high radiation sensitivity, dry etching resistance, and excellent transparency; an interlayer insulating film formed from said composition; a display element including said interlayer insulating film; and a method for manufacturing the interlayer insulating film. This invention relates to a radiosensitive linear composition comprising: an alkali-soluble polymer (A) (excluding polymer (C)); a quinone diazide compound (B); a polymer (C) comprising a structural unit (V) represented by formula (1) and a structural unit (VI) derived from at least one compound selected from the group consisting of maleimide, N-substituted maleimide, and maleic anhydride, wherein the total content of said structural unit (V) and structural unit (VI) is 55% by mass or more relative to all structural units constituting polymer (C); and a solvent (S).

This invention relates to a testing apparatus and method for a rotating target used in particle accelerators. The testing apparatus for the rotating target includes a vacuum system, a power loading system, a drive control system, a cooling system, and a sensor and data acquisition system. The rotating target is mounted within a vacuum testing chamber using a fixed bracket. The stator of a motor that drives the target's rotation is mounted on the fixed bracket, while the rotor is fixed to the target. The target is driven by induction via the drive control system. The motor stator generates a rotating magnetic field through a power supply to drive the rotor, thereby driving the target to rotate at high speed. By establishing extreme operating environments such as high vacuum, high temperature, and high radiation for the rotating target, simulating actual working conditions, and by testing parameters such as rotational speed, acceleration, and displacement, the performance and reliability of the rotating target or bearing are comprehensively evaluated, thereby improving the design optimization of the rotating target or bearing.

This invention relates to a staggered covalent organic framework thin film, its preparation method, and its application, belonging to the field of thin film technology. The invention first dissolves an amine monomer in acetic acid solution to obtain an aqueous solution; then dissolves an aldehyde monomer in mesitylene to obtain an organic solution; finally, the aqueous and organic solutions are added to the aqueous and organic phase chambers of a diffusion cell, respectively, for interfacial polymerization. After the reaction, the membrane material is removed, washed, and dried to obtain the staggered covalent organic framework thin film. This film forms a staggered stacked structure and constructs sub-nanometer transport channels with pore sizes of approximately 0.5 nm to 0.7 nm. Through a synergistic mechanism of Donnan repulsion and hydrogen bonding interactions, it maintains structural stability under extreme environments of high acidity, strong corrosion, and high radiation, achieving highly efficient selective permeation of protons and efficient retention of metal ions in high-level radioactive waste liquids.

This invention provides a method for dismantling nuclear reactor equipment that improves the efficiency of sorting and managing metal powder generated during dismantling and tools used in dismantling, while also preventing sorting errors. [Solution] The method for dismantling a nuclear reactor facility includes the steps of: preparing a plurality of types of containers separated according to the radiation level of the contents; cutting an object to be cut located inside the containment vessel to generate cutting pieces; placing the cutting pieces into containers selected from the plurality of types of containers according to the radiation level of each cutting piece; and placing at least one of the metal powder generated when the cutting pieces were produced and the tools used to produce the cutting pieces into a container capable of accommodating the cutting piece with the highest radiation level.

The application relates to a radiation field reconstruction method, a computer device and a readable storage medium. The method comprises the following steps: constructing a kernel data digital twin environment according to three-dimensional basic data, and generating virtual scene data; performing radiation field calculation on a three-dimensional space of the virtual scene data based on radiation source parameters and shielding material parameters, and generating radiation dose distribution data; deploying virtual nodes corresponding to virtual robots and physical robots; planning an inspection path of the virtual robots and the virtual nodes; controlling the physical robots to perform an inspection task according to the planned inspection path of the virtual nodes; acquiring real-time simulation data of the virtual nodes and receiving real-time feedback data of the physical robots; and verifying and updating the radiation dose distribution data based on the real-time simulation data and the real-time feedback data. The method can solve the problem of large deviation between static simulation and a real environment through virtual-real closed-loop correction, continuously improve the radiation field model precision, and provide a reliable basis for subsequent inspection path optimization.

This invention discloses a radiation-resistant, high flame-retardant composite sheath for cables and its preparation method, belonging to the field of cable sheath technology. It consists of an inner sheath and an outer sheath. The inner sheath is made of EVA-silicone rubber sheath material; the outer sheath is made of ceramicized silicone rubber material. The EVA-silicone rubber sheath material comprises the following raw materials by mass percentage: 20-30% phenyl silicone rubber, 16-24% irradiated functional filler, 10-20% flame retardant, 1.8-3.0% peroxide crosslinking agent, 2-5% processing aids, and the balance being ethylene-vinyl acetate copolymer. The composite sheath of this invention is suitable for extreme environments with high radiation and fire risks, providing reliable protection for special cables.

This invention discloses an antenna with applied impedance, belonging to the field of wireless communication technology. The antenna has a long, flat structure with a slot inside, forming a slot opening. The slot opening is a semi-circular structure, which constitutes the main part of the antenna's radiating surface. The semi-circular structure has a gap, and the applied impedance is placed in the gap of the slot opening. The antenna is flat and can be printed on a single-sided PCB, facilitating its assembly in compact wireless device environments. It also provides a tunable and easy-to-operate antenna radiating surface. By placing the applied impedance in the gap of the slot, a reasonable traveling and standing wave distribution of the antenna current is ensured, resulting in a wide antenna impedance bandwidth while maintaining high radiation efficiency. Therefore, the antenna of this invention can be built into compact and complex wireless communication device environments and maintain high performance.

The embodiment of the application relates to the technical field of antennas, and discloses an antenna and a communication device, the antenna comprising a main plate, a first antenna unit and a first metal grounding ring, the first antenna unit being arranged at one end of the main plate, the first antenna unit comprising a first support, a first sub antenna and a first parasitic structure, the first sub antenna being arranged on the first support, wherein the first sub antenna comprises a first frequency band radiation area, the first frequency band radiation area respectively extending a second frequency band radiation area and a third frequency band radiation area, the first parasitic structure being arranged around the second frequency band radiation area, and a preset gap being formed between the first parasitic structure and the second frequency band radiation area, and the first metal grounding ring being connected with the first sub antenna. In the above manner, the embodiment of the application can realize coverage of multiple frequency bands while maintaining high radiation efficiency and gain performance.

A friction device and its application method for simulating a hybrid field of microgravity, radiation, and temperature on an extraterrestrial body can meet the demand for simulating material damage under extreme conditions in the cosmic environment (high radiation, extreme temperature, and extreme gravity). This invention uses high-permeability magnetic materials, a vacuum pump, and a gamma radiation source to simulate the cosmic environment. Traditional "stretching suspension" methods are designed for medium or large spacecraft and robotic arms, but cannot balance the partial gravity on small particles by stretching and suspending them. This device overcomes the gravity of small molecular particles by constructing Maxwell coil pairs to achieve a gradient magnetic field, improving the reliability of the simulated environment. Simultaneously, this invention can simulate the extremely cold or hot climate conditions, vacuum conditions, and high-energy gamma-ray radiation conditions of the lunar surface. Furthermore, it can be used to conduct wear tests on high-performance aerospace materials under hypergravity or weightlessness conditions caused by Martian dust and interstellar dust.