63 results about "Radiation rays" patented technology

The invention provides a functional composite one-dimensional metal cavity slot array antenna, which belongs to the field of antennae, and comprises a feed cavity and a cover plate located at the top of the feed cavity, a plurality of groups of periodic intermediate-frequency anti-interference metal blocks and high-frequency anti-interference metal blocks are arranged in the feed cavity, and a radiation slot is formed in the cover plate. The polarization conversion structures are arranged on the two sides of the radiation slot in a stepped and open manner to form an undulating shape; an antenna array is also provided. An anti-interference periodic structure is embedded in the feed cavity, the antenna is endowed with anti-interference capacity in multiple different frequency bands, the polarization conversion structures are arranged on the two sides of the radiation slot in a stepped and open mode to form an undulating shape, an electromagnetic signal is input into the feed cavity, linearly polarized electromagnetic waves are radiated outwards through the radiation slot, and the antenna is formed. Linear polarization electromagnetic waves are decomposed into a group of orthogonal components with the same amplitude after passing through the polarization conversion structure, a 90-degree phase difference exists between the two components, circular polarization is formed to radiate towards the space, the polarization conversion structure is simple in structure and convenient to process, and the scattering characteristic of the antenna is improved.

The invention particularly relates to a two-dimensional wide-angle scanning phased array based on an electromagnetic metasurface, which comprises a radiation antenna and an electromagnetic band gap structure, the radiation antenna and the electromagnetic band gap structure are in coplanar design, the radiation antenna is positioned in the middle of the electromagnetic band gap structure, the upper layer of the electromagnetic band gap structure is metal with a hexagon and a rectangular branch, and the lower layer of the electromagnetic band gap structure is metal. The lower layer is the bottom of the dielectric substrate and is also made of metal, and the middle is a metalized via hole penetrating through the upper and lower layer metal. Wide beams are realized by utilizing leaky wave characteristics of an electromagnetic band gap structure and a left-right hand mode regulation and control line antenna beam in dispersion analysis, the whole antenna is of a planar structure and is only composed of a layer of dielectric substrate, the antenna array is arranged in a rectangular shape to form a two-dimensional antenna array surface, and the antenna has the characteristics of low profile, wide beam, wide angle scanning and low cost, and is suitable for large-scale popularization and application. And the structure is simple and the debugging difficulty is low.

A check device, comprising a bearing frame (1), a check apparatus (2) and a pressure measurement part. The check apparatus (2) is mounted inside the bearing frame (1), the check apparatus (2) being configured to emit radiation rays to an object to be checked so as to obtain a scanned image of said object. The pressure measurement part is connected to the bearing frame (1), wherein the pressure measurement part comprises N measurement mechanisms (3), the N measurement mechanisms (3) being used for measuring pressure values applied by the bearing frame (1) to N positions, and N being an integer greater than or equal to 1.

Embodiments of the present application provide a collimator module, a collimator, a detector module and an imaging device. The collimator module comprises a plurality of first shielding sheets, the plurality of first shielding sheets are arranged at intervals, the first shielding sheets extend along a first direction, and each of the first shielding sheets comprises a main body portion and a protruding portion extending from at least one end of the main body portion; and a plurality of second shielding sheets, the second shielding sheets extend along a second direction perpendicular to the first direction, and each of the second shielding sheets comprises at least one end shielding sheet connected to at least one end of the main body portion of the first shielding sheet, and the protruding portion of the first shielding sheet extends beyond the end shielding sheet. The protruding portion of the first shielding sheet can prevent the radiation passing through the gap between the collimator modules from irradiating some channels of the scintillator, so that the detector module can achieve imaging balance on all channels, and the imaging quality of the detector module is improved.

The utility model discloses an anti-warping multilayer FPC antenna, comprising an FPC body comprising a first protection layer, a radiation line layer, a flexible substrate, a grounding layer, an insulation layer and a second protection layer which are stacked in sequence, the radiation line layer comprises a main radiation body and a branch radiation body which are connected, and the grounding layer is provided with an abdicating gap; the micro-strip feeder line is arranged between the insulating layer and the second protective layer, one end of the micro-strip feeder line directly faces the main radiator and is arranged in the abdicating gap, and a feed connection structure is arranged between one end of the micro-strip feeder line and the main radiator; the stress adjusting structure comprises a plurality of reinforcing ribs and a plurality of round holes penetrating through the FPC body, all the reinforcing ribs are distributed on one side of the second protection layer at equal intervals, and intervals are formed between the round holes and the main radiator, between the round holes and the branch radiators and between the round holes and the microstrip feeder. The cable is wide in area and application range, can reduce the stress formed during bending, is good in anti-warping performance, and is reliable in signal transmission.

The light-emitting device provided by the embodiment of the invention comprises an RGB light-emitting assembly and a spectrum supplementing unit, the RGB light-emitting component comprises a blue light unit, a green light unit and a red light unit of which the color purity is greater than 0.7; the RGB light-emitting assembly is used for providing color light and participating in dimming of mixed white light; the spectrum supplementing unit is used for emitting warm white light to supplement light emitted by the RGB assembly so as to emit mixed white light with the color tolerance smaller than 5SDCM; the CRI (Ra) of the spectrum supplementing unit is smaller than 75, so that the light-emitting device can emit mixed white light close to blackbody radiation within the range of 1800-2700 K through the matching of the light intensity proportion between the red light unit and the spectrum supplementing unit. The light-emitting device can realize that mixed white light is closer to blackbody radiation rays in a range of 1800K-6500K.

The application relates to the field of LED health lighting, and discloses a method for LED mixed generation of sunlight-like white light and an LED lamp set. The method comprises the following steps: determining the color points of each LED lamp bead around a blackbody radiation line, independently packaging each LED lamp bead, and comprising LED chips with specific peak wavelengths and various fluorescent powders; determining l target sunlight-like white light color points on the blackbody radiation line, and calculating l groups of luminous flux parameters; selecting a group of luminous flux parameters from the l groups of luminous flux parameters according to a preset target, and using the group of luminous flux parameters to control the m LED lamp beads to form mixed light, i.e. sunlight-like white light. According to the combination of different intensities of various light sources, the application changes the single waveband excitation of fluorescent powder for emitting white light by the existing full-spectrum white light LED into multi-waveband LED chip mixed dimming, fills the gap of the spectrum of about 480 nm, has a higher color rendering index, and has a more continuous mixed spectrum, and can realize sunlight-like dimming along the blackbody radiation line.

The invention discloses radiation shielding type high-strength ceramsite based on lead-zinc ore tailings and a preparation method of the radiation shielding type high-strength ceramsite, and relates to the technical field of radiation protection concrete. The lead-zinc ore tailings containing more Pb elements are used as main ceramic forming raw materials, a proper amount of lead-rich raw materials are used as auxiliary materials to adjust the content of the Pb elements, a proper amount of boron-rich raw materials are used as auxiliary materials to adjust the content of the B elements, and the composite powder with the proper content of the Pb elements and the proper content of the B elements is prepared. The efficient shielding effect of the Pb element and the B element on gamma rays and neutron radiation is fully exerted, and the sintering temperature of the ceramsite is remarkably reduced. In addition, a proper amount of fly ash floating beads with spheroidal cavity structures are introduced as a pore-forming template, so that the purpose of regulating and controlling the density grade of the ceramsite is achieved, and the problem that the concrete structure is not uniform due to the fact that the density of aggregate is not matched with that of a cementing material is solved. The prepared ceramsite has relatively high strength and a good radiation shielding coefficient, and has a density similar to that of a cementing material.

The embodiments herein provide thermal processing apparatus. The thermal processing apparatus includes a radiation module configured to generate a line of radiation for an annealing process, a substrate support configured to receive a substrate thereon, and a translation mechanism. The substrate support includes one or more channels configured to flow a working fluid therethrough. The working fluid is configured to enable a bottom surface of the substrate disposed upon the substrate support to be cooled to a temperature of about 200°C to about -200°C during the annealing process. The translation mechanism is configured to translate the substrate support and the line of radiation relative to one another.

The present invention discloses a detection device for detecting the orientation of a radioactive source, comprising a circular shell, in which a main control board, a detector and a shielding block are arranged. The shielding block is composed of an upper shielding lead block and a lower shielding lead block that are fixedly connected. The upper shielding lead block and the lower shielding lead block are both arc-shaped and respectively placed on both sides of the center line of the shielding block, and the thickness of the upper shielding lead block gradually increases from left to right, while the thickness of the lower shielding lead block gradually decreases from left to right. The detector is provided with two, namely an upper detector and a lower detector, both of which are cylindrical and arranged up and down, and respectively placed in a semi-enclosed space formed by the upper shielding lead block and the lower shielding lead block. Each detector is connected to the main control board, used for collecting gamma rays in the environment, and generating a number of pulses and transmitting them to the main control board. The main control board judges the orientation of the gamma radiation emitted by the radioactive source according to the number of pulses fed back by each detector and the lead attenuation thickness corresponding to the collected gamma rays.

A material sorting method, relating to the field of material sorting, the field of radiation inspection, or other fields. The material sorting method comprises: in response to particle size information of materials to be sorted satisfying a preset condition, controlling at least one of a ray source (221) and a detector (222) to move, so as to obtain a radiation distance and a detection distance matching the particle size information; controlling the ray source (221) to emit radiation rays toward the materials on the basis of the radiation distance, and controlling the detector (222) to receive ray signals of the radiation rays on the basis of the detection distance, so as to obtain a radiation image; and sorting the materials on the basis of the radiation image. Further provided is a material sorting device. The material sorting method and device can improve the image quality of imaging and the accuracy of subsequent steps such as analysis and identification.

The present disclosure relates to a system for imaging. The system may include a supporting assembly and a detector assembly. The supporting assembly may include a detection region to accommodate a subject. The detector assembly may surround the detection region. The detector assembly may be configured to detect radiation rays emitted from the subject located within the detection region. The detector assembly may include a plurality of detector rings. Each detector ring may include a scintillator array and a plurality of photosensors. The plurality of detector rings may be arranged on the supporting assembly in an axial direction of the supporting assembly to form an axial field of view (FOV) having a length no less than 0.75 meters.

The application provides an inspection equipment, comprising a bearing frame, an inspection device and a pressure detection part; the inspection device is installed inside the bearing frame and is configured to emit radiation rays to an object to be inspected to obtain a scanning image of the object to be inspected; the pressure detection part is connected with the bearing frame, wherein the pressure detection part comprises N detection mechanisms, and the N detection mechanisms are used for detecting pressure values applied by the bearing frame at N positions, and N is an integer greater than or equal to 1. The inspection equipment of the application is provided with a plurality of detection mechanisms at the bottom of the bearing frame, the detection mechanisms are used for detecting the pressure values of the corresponding positions of the bearing frame, and based on the pressure values, timely measures can be taken for the areas with relatively large stress of the bearing frame, so that the overall stress of the bearing frame is balanced, and then the ground in contact with the inspection equipment is prevented from being damaged, and the reliable operation of the inspection equipment is ensured.

The present application provides a neutron capture therapy system, which can reduce or avoid the radiation damage and radiation leakage caused by the neutron and other radiation generated by the neutron capture therapy system to the treatment table positioning device. The neutron capture therapy system of the present application comprises a charged particle beam generating unit, a beam transmission unit, a neutron beam generating unit, a treatment table and a treatment table positioning device. The treatment table positioning device comprises a linear shaft and a mechanical arm. The mechanical arm is arranged between the linear shaft and the treatment table for supporting and positioning the treatment table. The linear shaft comprises a slide rail fixed to the building and a support connected with the mechanical arm. The support drives the treatment table and the mechanical arm to slide along the slide rail. The neutron capture therapy system further comprises a shielding device of the treatment table positioning device. The shielding device comprises a slide rail cover.

The invention discloses an anti-radiation linear voltage regulator and an anti-radiation electronic device. A first sensitive node and a second sensitive node in an amplifier module and a third sensitive node in a bias mirror current module are respectively provided with at least two split branches; split branches in each sensitive node area are arranged in a discrete layout mode in a physical space, and a single event effect is reduced or eliminated through a circuit split multipath and physical space charge sharing technology mode, so that the single event effect is reduced or eliminated under the state that redundant circuits are not increased and the chip area is not sacrificed; and the reinforcement design work of the anti-radiation linear voltage regulator is completed.

The present disclosure provides a device and an equipment for radiation ray generation. The device may include: a radiation target assembly configured to generate radiation rays under irradiation of an electron beam with a predetermined energy; and a heat dissipation assembly arranged on a back surface of the radiation target assembly, wherein a range of a thickness of the target assembly may be determined based on a peak of energy deposition of a target material of the radiation target assembly under the irradiation of the electron beam with the predetermined energy.

The light-emitting device provided by the embodiment of the invention comprises a blue light unit used for emitting blue light; the chromaticity coordinates B (xB, yB) of the blue light units meet the following conditions: 0.1 < = xB < = 0.2, and 0 < = yB < = 0.1; the green light unit is used for emitting green light; the color coordinate G (xG, yG) of the green light unit satisfies the following conditions: 0.1 < = xG < = 0.2, and 0.65 < = yG < = 0.75; the red light unit is used for emitting red light; the chromaticity coordinates of the red light unit, such as R (xR, yR), meet the following conditions: 0.63 < = xR < = 0.7, 0.3 < = yR < = 0.35; the warm white light unit is used for emitting warm white light, and the color coordinates W (xW, yW) of the warm white light unit meet the following conditions: 0.4 < = xW < = 0.5, 0.4 < = yW < = 0.5; the color coordinate W (xW, yW) of the warm white light unit is positioned above the Planck track; the chromaticity coordinates of the warm white light unit and the chromaticity coordinates of the red light unit are located on the two sides of the Planck track respectively; and the blue light unit, the green light unit, the red light unit and the warm white light unit can be matched to emit mixed white light which is close to black body radiation rays in a color temperature adjusting interval of 1800K-6500K. The mixed white light with various color temperatures emitted by the light-emitting device has a good color rendering index.

The present invention provides a multi-frequency, multi-port terahertz source generation method based on stimulated amplification of coherent radiation, comprising: obtaining free electrons emitted by an electron emission source and accelerating the free electrons to a set speed; initially clustering the accelerated free electrons under the action of an external pump source to form primary electron clusters; interacting the primary electron clusters with a clustering grating to generate coherent electromagnetic radiation to achieve electron clustering; based on the interaction of the coherent electromagnetic radiation with the radiation grating in a resonant cavity structure to form stimulated amplified coherent electromagnetic radiation, the electron clustering is enhanced, the size of the electron clusters is reduced, and high-density periodic clustered electron clusters are obtained; the periodic clustered electron clusters interact with the radiation grating to generate high-order frequency-doubled coherent electromagnetic radiation signals, which are output from a port, the terminal window containing a diamond window, and the output waveguide connected to the resonant cavity. The present invention solves the problems of existing small-scale terahertz electronic devices operating at room temperature that are difficult to increase the frequency and effectively compress the radiation linewidth.

This utility model provides a handheld antenna structure, including a supporting tube with several fixed ring plates on it. Side strips are distributed around the outer periphery of the fixed ring plates, and a radiation coil is disposed on the outer side of each side strip. Each side strip includes a connecting head section, a middle section, and a connecting tail section. The middle section is located between the connecting head section and the connecting tail section and includes a metal sheet and a connecting plate. The metal sheet is disposed on the outer side of the connecting plate. The beneficial effect is that by equidistantly distributing fixed ring plates on the supporting tube, and then setting side strips around the outer periphery of the fixed ring plates, and then sleeved with radiation coils on the outer side of the side strips, the device can be lightweight and miniaturized. Furthermore, the presence of the radiation coils can shorten the physical length of the antenna to a certain extent with minimal impact on its functionality. Compared with the prior art, this application has the advantages of overall miniaturization, light weight, and ease of integration.

The embodiment of the invention provides a photon counting detector. The photon counting detector may include a sensor layer (201, 251), a chip (202, 252, 300, 350), and a substrate (203, 253). The sensor layer (201, 251) may be configured to detect incident radiation photons and generate an electrical signal. The chip (202, 252, 300, 350) may be electrically connected to the sensor layer (201, 251) and include a plurality of connection components and one or more processing circuitry (304, 354) through the chip (202, 252, 300, 350). Each of the one or more processing circuits (304, 354) is electrically connected to one or more portions of the sensor layer (201, 251) through at least one of the plurality of connection components. The substrate (203, 253) may be electrically connected to the chip (202, 252, 300, 350).

The embodiments herein provide thermal processing apparatus. The thermal processing apparatus includes a radiation module configured to generate a line of radiation for an annealing process, a substrate support configured to receive a substrate thereon, and a translation mechanism. The substrate support includes one or more channels configured to flow a working fluid therethrough. The working fluid is configured to enable a bottom surface of the substrate disposed upon the substrate support to be cooled to a temperature of about 200° C. to about −200° C. during the annealing process. The translation mechanism is configured to translate the substrate support and the line of radiation relative to one another.

The invention discloses an irradiation-resistant agent for PVC (polyvinyl chloride) resin as well as a preparation method and application of the irradiation-resistant agent, and the preparation method comprises the following steps: 1) mixing silicone oil, a surfactant, a metal oxide, a catalyst, water and hydrotalcite, and heating for reaction to obtain a component A; and 2) uniformly mixing an antioxidant, beta-diketone, the component A in the step 1) and an optional additive to obtain the irradiation-resistant agent for the PVC resin. According to the radiation-resistant agent for the PVC resin, the component A is introduced, so that the radiation-resistant agent has certain radiation resistance while assisting stabilization, the prepared radiation-resistant agent for the PVC resin has multiple functions of terminating free radicals, absorbing radiation rays, reducing peroxides, replacing unstable structures, absorbing hydrogen chloride and the like, the full-scene application requirements in the polymerization, post-processing and radiation sterilization processes are ensured, and the radiation-resistant agent for the PVC resin has wide application prospects. The problems of yellowing and fogging caused by PVC irradiation are solved in the whole process.

The invention relates to the field of safety inspection, in particular to radiation scanning inspection equipment and a radiation scanning inspection method. The radiation scanning inspection apparatus includes: a bracket; the arm frame is connected with the support in a swinging mode and forms an inspection channel for an inspected object to pass through, and the swinging axis of the arm frame is parallel to the horizontal plane; the top view angle radiation source is arranged at the top of the arm support and is configured to emit radiation rays; the detector is configured to receive radiation rays which are emitted by the top view angle radiation source and penetrate through the detected object; the included angle between the scanning face of the top view angle radiation source and the passing direction of the detected object is configured to be adjusted through swinging of the arm support relative to the support. According to the embodiment of the invention, the adaptability to the detected object can be improved.

The embodiment of the invention provides a radiation ray generating device. The radiation ray generating device comprises a first target assembly, a first heat dissipation layer and a second target assembly, wherein the first target assembly is used for generating radiation rays under irradiation of electron beams with preset energy; the first heat dissipation layer is arranged on the back face of the first target assembly;

An antenna module includes a plurality of bezel segments and at least one antenna structure. The antenna structure is connected to the bezel segments. The antenna structure is located at a corner of the antenna module and includes at least three branches, and the branches extend in a first direction, a second direction and a third direction constituting the corner. The antenna module can use the part of the frame of the display device that is not used as an antenna, forming an integrated bezel segment and antenna structure. In this way, the number of antennas of the display device can be increased under the same machine operation space, increasing the space utilization. The radiation lines of the antenna structure are designed in three dimensions and can cover multiple surfaces of the frame, so that the antenna structure has good radiation efficiency and field pattern. The present disclosure also relates to a manufacturing method of a display device with an antenna module.

The invention relates to the technical field of antennas, and discloses a magnetoelectric dipole antenna with polarization and reconfigurable directional diagram, which comprises a reflection cavity arranged in a nested manner, a vertical metal wall, a dielectric substrate arranged on the metal wall, and a radiation unit, a stepped parasitic unit, a crossed dipole type feed structure and two groups of switches which are arranged on the lower surface of the substrate. The first group of switches is integrated in the feed structure, and the second group of switches is arranged between the radiation unit and the parasitic unit. Different dipole arms of the feed structure are selectively excited through the first group of switches, and different parasitic units are conducted in combination with the second group of switches, so that the antenna realizes three modes of left-handed and right-handed circular polarization, beam deflection linear polarization and axial radiation linear polarization. Through cooperative work of two groups of switches, multiple working modes are integrated in a single structure, good impedance matching and stable far-field radiation performance are maintained in all modes, the number of used antennas is reduced, and the problem of electromagnetic compatibility caused by introduction of multiple antennas is avoided.

A radiographic imaging apparatus configured to be able to communicate with a control apparatus includes: a radiation detecting unit configured to detect incident radiation rays to acquire a radiographic image; a storage unit configured to, in a case where radiographic imaging is performed when in a first imaging state, in which a state of communication with the control apparatus is abnormal, store radiographic imaging information from the radiographic imaging; and a communication control unit configured to, upon a transition from the first imaging state to a second imaging state, in which the state of communication with the control apparatus is normal, transmit the radiographic imaging information stored in the storage unit to the control apparatus.

The application discloses a polarized direction adjustable electromagnetic pulse directional radiation system, which comprises a movable rotating support, a directional radiation line grid antenna and a high-voltage differential pulse source. The directional radiation line grid antenna comprises an upper line grid, a lower line grid, an upper edge roll, a lower edge roll, a loading loop and a load resistor. The input ends of the upper line grid and the lower line grid are respectively connected to the upper differential output electrode and the lower differential output electrode of the high-voltage differential pulse source, the output end of the upper line grid is connected to the upper edge roll, the output end of the lower line grid is connected to the lower edge roll, one end of the loading loop is connected to the upper edge roll through an upper adapter plate, and the other end of the loading loop is connected to the lower edge roll through a lower adapter plate. The load resistor is arranged on the loading loop. The directional radiation line grid antenna is arranged on the movable rotating support, and the directional radiation line grid antenna can rotate with the rotating shaft as the center. The system has high radiation efficiency, the polarized direction is adjustable, and a polarized direction adjustable electromagnetic pulse radiation environment can be generated.

The utility model discloses a UHF frequency band RFID glass tube temperature measurement label comprising a toughened glass tube, a tuning coil, an ultrahigh frequency RFID temperature measurement circuit module and a ceramic rod are arranged in the toughened glass tube along the axial direction in sequence, and a main radiation coil is wound on the ceramic rod. The ultrahigh frequency RFID temperature measurement circuit module comprises a PCB, a temperature measurement chip and an impedance matching capacitor. According to the scheme, the ceramic rod is combined with the main radiation coil, the dielectric constant of the ceramic rod is utilized, efficient radiation is achieved through the short main radiation coil, and the overall size of the glass tube is reduced; the components are axially arranged to optimize the electromagnetic environment, and stable signal transmission and accurate temperature measurement are guaranteed; an impedance matching capacitor in the ultrahigh frequency RFID temperature measurement circuit module adjusts coil impedance, perfect matching with a chip is achieved, signal loss is reduced, the signal transmission efficiency is remarkably improved, the tag achieves long-distance communication and temperature measurement in the UHF frequency band, and the scene requirements of animal internal temperature measurement, laboratory monitoring and the like are met.