74 results about "Radiation sensitivity" patented technology

The invention relates to the technical field of carbon ion radiotherapy relative biological effects, and discloses a cell survival rate prediction method and system based on Monte Carlo simulation carbon ion spectrum distribution. The method comprises the following steps: collecting experimental data of isolated cells to construct a cell database; based on the energy range of carbon ion radiotherapy particles and the type of secondary particles, a monte carlo method is used to construct a monoenergetic particle DNA damage database. And then constructing a cell survival rate prediction model based on DNA damage repair, and fitting cell radiation specificity parameters of the model based on a cell database to accurately reflect the radiation sensitivity of the cells. Then on the basis of the monoenergetic particle DNA damage database, the mixed beam DNA damage characteristics are determined in a dose weighting mode, the mixed beam DNA damage characteristics are input into the model subjected to parameter fitting to predict the cell survival rate, the secondary particle biological effect is considered, and the prediction accuracy of the clinical carbon ion beam relative biological effect can be improved.

The invention discloses an urban scale rainfall absorption and vegetation configuration collaborative optimization evaluation method, which belongs to the field of urban rainfall flood management optimization, and comprises the steps of performing integration and rainfall event identification on basic data of an urban region; physical mechanism inference is carried out by constructing multiple physical gating such as energy consistency, wet surface dissipation and geometric radiation sensitivity, and underlying surface hydrological response characteristics are obtained; constructing and solving a robust optimization model in combination with the underlying surface hydrological response characteristics and a preset planning target, and determining an optimal vegetation configuration scheme; and carrying out back substitution on the optimal vegetation configuration scheme to carry out closed-loop check and effect evaluation. According to the method, the hydrological response characteristics of the urban underlying surface can be accurately quantified, the vegetation configuration scheme with the definite achievement probability and the controllable risk is formulated under the uncertain condition, and the scientificity and the reliability of urban water resource toughness planning are improved.

Disclosed herein are methods for setting the radiation sensitivity and operational temperature range of ion-conducting polycrystalline radiation detectors. Disclosed herein are material fabrication methods for setting the ion-conducting polycrystalline microstructure and the grain boundary ion blocking characteristics in ion-conducting polycrystalline materials. The methods may include introducing a selected precursor element into the grain boundaries of the ion-conducting polycrystalline material. These methods may allow for the device detection threshold, dynamic range, and / or operational temperature range to be adjusted for ion-conducting polycrystalline radiation detectors. The methods disclosed herein allow for the design of high-sensitivity and high-performance radiation detectors that are low cost, non-toxic, environmentally robust, scalable, and able to operate in harsh environments (e.g., high temperature, high humidity, pressure, and / or corrosive).

The invention belongs to the technical field of communication, and provides a test method, a test system and a test terminal of a wifi7 router, a tester can determine the transmission performance of conduction of the to-be-tested wifi7 router by using the test system, and determine the transmission performance of radiation of the to-be-tested wifi7 router; line loss compensation of the radiation sensitivity of the to-be-tested WiFi router is determined based on the transmission performance of the conduction and the transmission performance of the radiation, and the line loss compensation of the radiation sensitivity is used for testing the radiation sensitivity of the to-be-tested WiFi router, so that the sensitivity automatic test of the radiation receiving capability of the WiFi router is realized. The method has the characteristics of high test efficiency, wide applicability and good expansibility, and can reduce the detection difficulty and effectively reduce the manpower test cost.

The invention provides an anti-radiation high-performance enhanced gallium nitride-based power device and a manufacturing method thereof, and belongs to the technical field of semiconductors. On the basis of a traditional enhanced P-GaN HEMT device structure, a P-type InaGa1-aN back barrier layer, an InbGa1-bN / GaN superlattice layer, a composite gate structure composed of a dielectric layer and a gate Schottky metal layer and a gradient-changing island-shaped P-GaN layer are innovatively introduced, and a pair of composite problems of dynamic resistance instability and radiation sensitivity are cooperatively solved. The device not only maintains the normally-off characteristic and the high threshold voltage of an enhanced device, but also remarkably improves the anti-irradiation capability, the breakdown voltage and the dynamic resistance stability, and is particularly suitable for power electronics in strong irradiation environments such as aerospace and nuclear energy detection.

The invention relates to the technical field of electronic detonator testing, in particular to a wireless through-the-earth detonation electronic detonator low-frequency safety verification testing method and device, and the method comprises the following steps: calling a safety testing strategy corresponding to a detonator ignition testing type; according to a safety test strategy corresponding to the detonator ignition test type, an ignition element in the wireless through-the-earth detonation electronic detonator corresponding to the test is tested, and the ignition voltage when the ignition probability corresponding to the ignition element is 50% and the ignition voltage when the ignition probability is 99.99% are determined; calling a safety test strategy corresponding to the magnetic field radiation sensitivity test type; and testing the ignition element according to a safety test strategy corresponding to the magnetic field radiation sensitivity test type, judging whether the ignition element is ignited or not in the test process based on the determined ignition voltage when the ignition probability of the ignition element is 50% and the ignition voltage when the ignition probability is 99.99%, and recording a test result.

The invention provides a trajectory data publishing method and system based on privacy protection, and belongs to the technical field of trajectory privacy protection, the scheme not only protects user privacy from a space-time dimension, but also considers semantic privacy of a position point, and further improves the security of privacy protection; meanwhile, according to the scheme, the sensitivity of different stay points to different users is measured through indexes such as global access frequency, personal access frequency and radiation sensitivity, personalized privacy budget distribution is provided for the users according to the sensitivity, and therefore personalized requirements are met while privacy is guaranteed, and user experience is improved. According to the scheme provided by the invention, the privacy security of the user is ensured, and meanwhile, the personalized requirement is met.

The invention discloses a ku-band high-field-intensity electric field sensitivity test system, a design method and a device. The system comprises a transmitter for generating an excitation signal, a ku-band high-field-intensity electric field sensitivity test antenna and a field intensity probe for receiving quasi-plane waves, in the antenna structure, the field angle horn comprises four side surfaces; the reflective curved surface is obtained by rotating a curve and is supported by the field-angle horn, and a radiation aperture is formed between the side surface of the field-angle horn and the reflective curved surface; the first rectangular waveguide converts the excitation signal into an electromagnetic wave; the rectangular-rectangular waveguide converter transmits the electromagnetic wave to the second rectangular waveguide; the second rectangular waveguide transmits the electromagnetic wave to the field angle horn; the field angle horn radiates electromagnetic waves to the reflective curved surface in a directional radiation mode; the reflection type curved surface reflects electromagnetic waves into quasi-plane waves and radiates the quasi-plane waves to the free space towards the front of the radiation aperture. According to the invention, an electric field radiation sensitivity test can be carried out in a generated high-field-intensity external radio frequency electromagnetic environment.

A first object of the invention is to provide an actinic ray-sensitive or radiation-sensitive resin composition that can maintain the ability to form a pattern having a good shape profile even after long-term storage. A second object of the invention is to provide a resist film, a pattern forming method, and an electronic device production method that use the actinic ray-sensitive or radiation-sensitive resin composition described above.The actinic ray-sensitive or radiation-sensitive resin composition of the invention includes an onium salt represented by formula (1), an acid-decomposable resin, and a solvent.

A method for improving the resolution of a radiation-sensitive microcapsule-based printer includes generating a plurality of sub-pixels in a sub-scanning direction. The method further includes mapping a plurality of grids onto a photosensitive medium, the plurality of grids corresponding to the plurality of sub-pixels. The method further includes determining the exposure energy required for each grid of the plurality of grids. The method further includes assigning the exposure energy required for each grid to a first exposure level and a second exposure level. The method further includes sequentially exposing each grid of the photosensitive medium to the corresponding first exposure level and the corresponding second exposure level as the photosensitive medium passes through a radiation-sensitive microcapsule-based printer in the sub-scanning direction.

The invention discloses a multi-antenna large-field-intensity radiation sensitivity automatic test system, which comprises a placement slide rail, a test slide rail, a detection slide rail, a control terminal, a plurality of signal generators, a plurality of power amplifiers, a power meter, a first change-over switch, a second change-over switch, a plurality of interference antennas and a plurality of field intensity probes, the control terminal is connected with the first change-over switch, the second change-over switch, the signal generator, the power meter and the field intensity probe; the signal generator is connected with the first change-over switch; the first change-over switch is connected with the power amplifier; the second change-over switch is connected with the power amplifier and the power meter; the placement slide rail and the test slide rail are located on one side of the test platform, and the detection slide rail is located on the other side of the test platform; the plurality of interference antennas are arranged on the placement slide rail; the pedestal of the interference antenna is provided with an identification code, and one side of one end of the test slide rail is provided with a scanning identifier. The test process is high in automation degree, and the efficiency of test work is improved.

Methods, systems, and devices for digitally-beamformed antennas are described. For example, an antenna assembly in accordance with the described techniques may include components that are coupled (e.g., bonded, adhered, soldered, fused) with one another, with respective components including different portions of circuitry that support digitally-beamformed signaling. A first component may include antenna elements on a first side of a substrate. A second component (e.g., including analog amplification circuitry coupled with the antenna elements) may be bonded over a first location of a second side of the first component, and a third component (e.g., including analog-to-digital and / or digital-to-analog circuitry coupled with the amplification circuitry) may be bonded over a second location of the second side of the first component. The second and third components may implement different types of semiconductor substrates and / or shielding that is tailored to the respective types of circuitry and / or radiation sensitivity or exposure of the respective components.

The invention provides radiation sensitive films, radiation dosage indicators comprising these films, processes for preparing these films, and methods of use of these films in several industrial and domestic applications that require exposure to radiation for certain benefits. The radiation sensitive films comprise a radiation sensitive composition typically in the form of a film which is overlaid by an uncolored and optically transparent layer for increasing the radiation sensitivity of the films.

A radiation-sensitive composition contains: (A) a polymer including a structural unit (U) represented by the following formula (1); and (B) a radiation-sensitive acid-generator formed of an onium cation having at least one group Rf1 selected from the group consisting of a fluoroalkyl group and a fluoro group (excepting a fluoro group in the fluoroalkyl group) and an organic anion having an iodine atom. In formula (1), R1 represents a hydrogen atom, a methyl group, or the like. X1 represents a single bond, an ether bond, an ester bond, or the like. Ar1 represents a cyclic group bound to X1 via an aromatic ring. A hydroxy group or group —ORY is bound to an atom adjacent to the atom bound to X1, among the atoms forming the aromatic group in Ar1. RY represents an acid-releasable group.

The application discloses a heavy atom enhanced calix cyanine dye radioactivity detection colorimetric sensor, the dye is prepared by introducing heavy atoms in the calix cyanine dye skeleton, and the radiation sensitivity is significantly improved; the dye reacts with hydroxyl radicals generated by water radiolysis under the action of radiation, conjugate structure is destroyed, and color change from green to yellow is generated; the application comprises a colorimetric test strip prepared from the dye, and a detection system integrated with a smartphone image recognition function, the test strip comprises a base material and an additive; the additive comprises a copolymer, and preparation reaction monomers of the copolymer comprise N,N-diethylaminoethyl acrylate and 3-methylpent-2-ene dimethyl acid; the application has the advantages of high sensitivity, low cost, simple operation, portability and the like, can be used for rapid, visual and quantitative detection of radionuclides in water solution, urine and the like samples, and has important application value in the field of nuclear medicine radiation safety monitoring.

A radiation-sensitive composition includes: an onium salt compound represented by formula (1); a polymer including a structural unit which includes an acid-dissociable group; and a solvent. A is a monovalent organic group having 1 to 40 carbon atoms; R1 and R2 are each independently a hydrogen atom, a monovalent fluorine-free organic group having 1 to 20 carbon atoms, a cyano group, a nitro group, a hydroxy group, or an amino group, when there are a plurality of R1s and R2s, the plurality of R1s and R2s are the same or different from each other; m1 is an integer of 1 to 8; and Z+ is a monovalent radiation-sensitive onium cation.

The application discloses a micro integrated multi-radiation detection device, a detection method and a calibration method, relates to the field of radiation detection, and aims to realize micro integration of a multi-radiation detector. The device comprises: a heterogeneous detection layer which is formed by stacking or partitioning and isolating a plurality of sub-detection layers which are respectively adapted to the radiation sensitivity and thickness requirements of particles, particles, photons and photons, so as to respectively establish corresponding incident conditions and detection paths for different types of radiation; and a detection circuit which is connected to the heterogeneous detection layer and respectively acquires detection signals of the sub-detection layers, so as to be used for identifying detection events. The application proposes a cooperative solution which takes into account micro integrated structural design, stable electric field, low-noise sampling, wireless coexistence, event discrimination and engineering manufacturability.

A radiation-sensitive resin composition, includes: a base resin including a structure unit having an acid-dissociable group; a radiation-sensitive acid generator; and a solvent. The radiation-sensitive acid generator includes at least two of compounds selected from the group consisting of a compound represented by formula (1), a compound represented by formula (2), and a compound represented by formula (3), provided that the compound represented by the formula (1) and the compound represented by the formula (3) within the scope of the compound represented by the formula (2) are excluded. R1, R2 and R3 are each independently a group having a cyclic structure provided that at least one of R1, R2 and R3 is a hetero atom-containing alicyclic group in which a carbon ring atom of an alicyclic hydrocarbon group is replaced with a hetero atom, and the hereto atom-containing alicyclic group comprises a cyclic acetal structure.

This invention relates to the field of solar photovoltaic power generation technology and discloses an adaptive angle adjustment method for solar cell modules, comprising the following steps: acquiring average wind speed and original pitch angle signals; performing frequency domain decoupling on the original pitch angle signals; calculating the high-frequency energy integral, low-frequency energy integral, and energy ratio parameter; calculating the actual diffuse reflectance by combining the average wind speed and the high-frequency energy integral; constructing a theoretical radiation model to obtain the optimal target tilt angle; extracting the radiation sensitivity gradient; calculating the tracking error between the actual tilt angle and the optimal target tilt angle; determining the actual dead zone by combining the energy ratio parameter and the radiation sensitivity gradient; and outputting control commands or drive commands based on the relationship between the absolute value of the error, the actual dead zone, and the high and low frequency energy integrals. This invention reduces mechanical wear by dynamically filtering out high-frequency wave disturbances through a dead zone and precisely optimizes the reflectance using high-frequency energy correction to improve power generation, achieving a balance between mechanical loss reduction and power generation benefits.

To provide an actinic ray-sensitive or radiation-sensitive resin composition that is capable of giving a pattern having excellent LWR performance even if the composition has been stored for a long period of time, and to provide a resist film, a pattern forming method, and a method for manufacturing an electronic device, each employing the actinic ray-sensitive or radiation-sensitive resin composition.SOLUTION: An actinic ray-sensitive or radiation-sensitive resin composition includes one or more specific compounds selected from the group consisting of a compound represented by general formula (1), a compound represented by general formula (2), and a compound represented by general formula (3), and an acid-decomposable resin.SELECTED DRAWING: None

The utility model provides a variable polarization test system for a high-frequency radiation sensitivity horn antenna, and relates to the technical field of electromagnetic compatibility detection. The variable polarization test system for the high-frequency radiation sensitivity horn antenna comprises a lifting vehicle body, a cabinet is installed on the top of the lifting vehicle body, and a baffle is installed on the cabinet. By arranging the lifting vehicle body, the height of the horn antenna body can be conveniently adjusted, a transmitting antenna is aligned to a tested area to be tested, the height and polarization of the antenna are adjusted, meanwhile, the adjusting steps are simple, operation is convenient, the transmission path from a power amplifier output waveguide port to the antenna is short, loss is low, the system is stable and easy to use, and the vibration resistance is high; the test efficiency is greatly improved, and the waveguide rotary joint is arranged and is installed on the baffle through the rotary joint clamp, so that the waveguide rotary joint can drive the horn antenna body to rotate, and the purpose of angle adjustment is achieved.

Organometallic precursors are described for the formation of high resolution lithography patterning coatings based on metal oxide hydroxide chemistry. The precursor compositions generally comprise ligands readily hydrolysable by water vapor or other OH source composition under modest conditions. The organometallic precursors generally comprise a radiation sensitive organo ligand to tin that can result in a coating that can be effective for high resolution patterning at relatively low radiation doses and is particularly useful for EUV patterning. The precursors compositions are readily processable under commercially suitable conditions. Solution phase processing with in situ hydrolysis or vapor based deposition can be used to form the coatings.

The present application relates to a kind of patterning material, patterning composition and pattern forming method.The patterning material of the present application has metal oxygen cluster skeleton, radiation-sensitive organic ligand and second ligand, the radiation-sensitive organic ligand is coordinated with metal M via coordination atom, the coordination atom is at least one selected from oxygen atom, sulfur atom, selenium atom, nitrogen atom, phosphorus atom, and the radiation-sensitive organic ligand is monodentate ligand or is two or more ligands;The second ligand is inorganic ion or coordination group.

An actinic ray-sensitive or radiation-sensitive resin composition containing a resin which provides increased polarity by action of an acid, an onium salt (A) including a sulfonate anion and not including a fluorine atom and a specified structure, and an onium salt (B) including the specified structure and not including a fluorine atom, a resist film formed using the actinic ray-sensitive or radiation-sensitive resin composition, a pattern forming method using the actinic ray-sensitive or radiation-sensitive resin composition, and a method for producing an electronic device.

The invention discloses an electric field radiation sensitivity test method for a radio frequency signal detection system. The method comprises the following steps: generating a radiation field by adopting a signal source A, an amplifier and a transmitting antenna; a directional coupler is connected in series to the rear end of an antenna of the radio frequency signal detection system, the output end of the directional coupler is connected to the input end of the radio frequency front end of the radio frequency signal detection system, and the coupling end of the directional coupler is connected to a signal source B through a coaxial cable; the working frequency of the signal source B is set to be f0, the output amplitude of the signal source B is recorded, the working frequency of the signal source B is kept unchanged, and the amplitude is increased by 3dB for emission; moving the transmitting antenna to radiate towards the components of the radio-frequency signal detection system, restarting radiation according to the recorded frequency and amplitude, observing whether the radio-frequency signal detection system is sensitive or not, and recording; and repeating the previous step until all the components of the radio frequency signal detection system are tested. According to the invention, the electric field radiation sensitivity test can be carried out on the whole system in the test frequency band range.

The present invention discloses a low-noise electric field radiation sensitivity test system and test method. The system is a method and device for achieving low-noise output in an electric field radiation sensitivity test based on a conventional power amplifier. A waveguide, a filter, and a narrowband transmitting antenna are combined to achieve low-noise level output outside the operating frequency band of the electric field radiation sensitivity test system, thereby realizing an effective electric field radiation sensitivity test for receiver-type test products. Simultaneously, switching between various sub-frequency bands is performed through a high-power programmable switching switch. In actual electric field radiation sensitivity tests, the test time is not increased, thereby maintaining test efficiency.

The invention discloses a prefabricated assembly type programmable metasurface radio wave reverberation chamber system and an application method.According to the system, a programmable metasurface stirrer and a flexible metal shielding material are combined, the radio wave reverberation chamber system is built under the field condition, and a statistical uniform electromagnetic field is formed in a reverberation chamber testing area; the engineering technical problems that a traditional reverberation chamber test space and a test site are fixed, and a mode stirring scheme is difficult to implement are solved. The modular design is adopted, the radio wave reverberation room can be flexibly deployed and rapidly built under the field condition, the construction cost and period are greatly reduced, a fixed office space is not occupied, and the test of projects such as radiation emission and radiation sensitivity of large equipment can be achieved. In conclusion, the field-oriented electromagnetic compatibility test system provided by the invention has the advantages of being flexible in deployment, convenient to disassemble, assemble and carry, high in physical space expandability and the like, and can be widely applied to various electromagnetic compatibility test scenes.

The invention discloses a maneuvering deployment electromagnetic environment effect test system and method, and relates to the field of electronic engineering and electromagnetic measurement. According to the invention, a military cross-country general chassis vehicle is adopted to carry a 9m shelter as an integrated carrier, and based on modular integration of four subsystems of conduction emission, radiation emission, conduction sensitivity and radiation sensitivity, a mobile lifting platform is matched with a multi-degree-of-freedom servo turntable to realize maneuvering deployment of an antenna and a power amplifier; the electromagnetic environment effect one-stop test which covers the full frequency band of 10 kHz to 40 GHz, is compatible with multiple GJB standards, and has high external field adaptability and rapid unfolding and folding capability is realized.

Organometallic patterning compositions are modified with iodine to improve radiation sensitivity and reduce radiation dose without significant loss of pattern quality. Iodine can be introduced as ligands to the metal ion and / or through introduction of iodide containing additives. Iodine is found to survive, at least in part, pre-irradiation processing. Thus, iodide ions are maintained in some form in the films being irradiated.

The invention relates to the technical field of wireless testing, in particular to an antenna radiation sensitivity testing method and device, terminal equipment and a storage medium. The method comprises the steps that a radio frequency interface of a tested device is connected with a first output port of a radio frequency power divider, an input port of the radio frequency power divider is connected with a radio frequency port of a wireless comprehensive tester, and a second output port of the radio frequency power divider is externally connected with a matched load; traversing all target wireless channels, and measuring and recording the conduction sensitivity of the tested equipment under each channel as the reference sensitivity; the second output port is changed to be connected with a matched antenna, a low-noise amplifier is connected between the matched antenna and the radio frequency power divider in series, and the gain of the low-noise amplifier is equal to the insertion loss of the radio frequency power divider; traversing all target wireless channels, and measuring and recording the equivalent radiation sensitivity of the tested equipment under each channel; and calculating the difference between the reference sensitivity and the equivalent radiation sensitivity under the same channel to obtain the radiation sensitivity deterioration degree of the tested equipment.