91 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 provides a material sorting method, and relates to the field of material sorting, the field of radiation inspection or other fields. The method comprises the following steps: controlling at least one of a radiation source and a detector to move in response to the condition that particle size information of a to-be-sorted material meets a preset condition, so as to obtain a radiation distance and a detection distance matched with the particle size information; the radiation source is controlled to send radiation rays to the to-be-sorted materials based on the radiation distance, the detector is controlled to receive a ray signal of the radiation rays based on the detection distance, and a radiation image is obtained; and sorting the to-be-sorted materials according to the radiation image. The invention further provides a material sorting device.

The invention discloses an anti-radiation aggregate, a preparation method thereof and high-strength anti-crack anti-radiation concrete, and belongs to the technical field of concrete. Comprising the following steps: S1, uniformly mixing lead powder, iron ore powder and barium cement, adding hydrogen peroxide and water, granulating, curing and heating at high temperature to obtain an aggregate core; s2, soaking the aggregate core in a mixed solution of sodium alginate and boron fibers, and then spraying the aggregate core with a calcium chloride aqueous solution to obtain aggregate particles; and S3, uniformly mixing red mud and graphite powder, calcining at 800-900 DEG C, grinding, sieving, uniformly mixing with an alkaline activator, adding water to obtain slurry, mixing the slurry with aggregate particles, and molding to obtain the composite material. The anti-radiation aggregate disclosed by the invention can attenuate radiation energy in a gradient manner, and has excellent speed reduction, weakening and absorption effects on radiation rays. Meanwhile, the anti-radiation aggregate disclosed by the invention has the characteristics of relatively small apparent density and high strength, concrete segregation and layering can be avoided, and the working and mechanical properties of the concrete are improved.

The purpose of the present invention is to provide: a radiation-sensitive composition capable of forming a resist film that can exhibit sensitivity and CDU at satisfactory levels when next-generation technology is applied and can suppress development defects; and a pattern formation method. The purpose of the present invention is also to provide a radiation-sensitive acid generator that can be applied to said radiation-sensitive composition. The present invention relates to a radiation-sensitive composition containing: a polymer (A) containing a structural unit (I) having an acid-dissociable group; a radiation-sensitive acid generator (B) represented by formula (1); and a solvent (C). (In formula (1): A is an (n1+n2+n3+1)-valent aromatic ring; R1 is a nitro group, a cyano group, a hydroxy group, an amino group, or a monovalent organic group; when there are multiple R1s, the multiple R1s are the same or different from one another; n1 is an integer of 1-5; n2 is an integer of 1-5; n3 is an integer of 0-5; m2 is an integer of 1-3; L is a single bond or an (m2+1)-valent linking group; Rf1 and Rf2 are each independently a fluorine atom or a monovalent fluorinated hydrocarbon group having 1-20 carbon atoms; Rf3 and Rf4 are each independently a hydrogen atom, a fluorine atom, a monovalent hydrocarbon group having 1-20 carbon atoms, or a monovalent fluorinated hydrocarbon group having 1-20 carbon atoms; when there are multiple Rf3s and multiple Rf4s, the multiple Rf3s and the multiple Rf4s may each be the same or different from one another; m1 is an integer of 0-10; and M+ is a monovalent onium cation.

The invention relates to the technical scheme. The invention belongs to the field of new energy and nuclear energy battery technology. The method is a comprehensive and systematic method for directly converting radioactive substances and radiation of the radioactive substances into electric energy. The utilization of radioactive substances is the utilization of a contact potential effect existing among substances with different Fermi levels. The utilization of the radiation is the utilization of the contact potential effect of a non-Fermi level; according to the technical scheme, the contact potential effect formed by the electric potential generated by radiation rays and radiation on a polar plate is utilized, and the effect is converted into electric energy capable of being actually utilized under the action of a medium which has conductivity and controls voltage and limits conductivity under a certain condition.

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 invention provides a thickness measuring device capable of measuring the thickness of a coating film functional sheet formed on a carrying sheet with high precision, and also provides a ceramic green sheet manufacturing device and a ceramic green sheet manufacturing method using the thickness measuring device. A thickness measurement device (1) for measuring the thickness of a coating film (20) formed on a carrier sheet (10) being conveyed includes: a first measurement unit (1A) for acquiring thickness information of the carrier sheet (10) before the coating film (20) is formed and acquiring a first position by irradiation with light; a second measurement unit (1B) that acquires thickness information of the mounting sheet (10) and the coating film (20) after the coating film (20) is formed by irradiation with radiation, and acquires a second position; and a calculation processing unit that calculates the thickness of the coating film on the basis of the thickness information of the mounting sheet at the first position and the thickness information at the second position.

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 an energy spectrum measurement device and method for tough-induced radiation X-rays, and relates to the field of ray detection and measurement, and the device comprises a collimator, a shielding body, a multi-layer absorption measurement assembly and a processor. An X-ray collimation hole channel is formed in the collimator; the shielding body and the collimator are coaxially mounted; a mounting hole channel is formed in the shielding body; the multi-layer absorption measurement assembly is arranged in the mounting hole channel of the shielding body; the multi-layer absorption measurement assembly comprises a plurality of absorption sheets and a plurality of Si dosage sheets which are sequentially arranged at intervals; after electron beam tough radiation X-rays pass through the X-ray collimation hole channel of the collimator, X-ray irradiation is carried out on the multi-layer absorption measurement assembly in the mounting hole channel of the shielding body; the processor is used for determining the energy spectrum data of the electron beam tough radiation X-ray according to the X-ray absorbed dose of each Si dose sheet. According to the invention, the measurement of the electron beam tough-induced radiation MeV wide-energy-region X-ray energy spectrum is realized.

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.

A radiator (14) has a plurality of radiation lines (18), where each radiation line (18) includes a shield conductor (26) and an exposed conductor (28). The shield conductor (26) and the exposed conductor (28) of each radiation line (18) extend parallel to each other, and the exposed conductor (28) surrounds the shield conductor (26). The radiation lines (18) are arranged parallel to each other. The shielding conductor (26) and the exposed conductor (28) of the same radiation line (18) are electrically insulated from each other at least between the first end (30) and the second end (32) of the radiation line (18). The shielded conductor (26) of one of the radiation lines (18) is electrically connected by a bridge (20) to the exposed conductor (28) of at least one of the other radiation lines (18). Furthermore, an antenna (12) and a device (10) are shown.

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 invention provides a multi-frequency antenna. The multi-frequency antenna comprises a plurality of main radiation units and a plurality of auxiliary radiation units, the main radiation units are arranged on the bottom plate in an array mode, and the auxiliary radiation units are arranged between the main radiation units at intervals. Each auxiliary radiation unit comprises a dielectric substrate, a radiation line and a Balun plate; the dielectric substrate is recessed to form a slot and a plurality of notches symmetrically arranged about the slot, and the radiation lines are fixedly arranged between the notches; and one end of the balun plate is embedded into the slot, and the other end of the balun plate is connected with the feeder line. According to the invention, the auxiliary radiation units are nested between the main radiation units, and each gap is segmented by the radiation line, so that the influence of the main radiation units on the auxiliary radiation units is improved, and a multi-band radiation array is constructed.

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.

To suppress artifacts attributed to a difference in sharpness in a component image in which a specific component of a subject is highlighted in a radiation image processing apparatus, method, and program.SOLUTION: A processor acquires a first radiation image and a second radiation image obtained by imaging a subject on the basis of radiation rays in which energy distributions are different, executes sharpness conversion processing for at least one of the first radiation image and the second radiation image so that the sharpness of the first radiation image and the sharpness of the second radiation image are the same, and derives a component image in which a specific component in the subject is highlighted on the basis of the first radiation image and the second radiation image which have been subjected to the sharpness conversion processing.SELECTED DRAWING: Figure 3

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 embodiments of the present application provide a detector and a sterilization system. The detector comprises a shell assembly, a detection assembly, and a shielding assembly, wherein the detection assembly comprises a first shell, a detection circuit board, and a probe; the detection circuit board is arranged in the first shell and electrically connected to the probe, and the detection circuit board comprises a sensitive element; a first end of the probe is fixed in the first shell, and a second end of the probe extends out of the first shell; the shell assembly comprises an abutting shell and a pressing part that can slide relative to each other, and the detection assembly is located below the bottom of the pressing part; the abutting shell is configured to abut against a sampling position, and the pressing part is configured to drive the detection assembly to move towards the sampling position so as to allow the probe to pierce into the sampling position for detection; when the detector is sterilized using radiation rays, the shielding assembly is configured to block part of the irradiation rays so as to form a full-shadow shielding area for protecting the sensitive element, and at least part of the full-shadow shielding area is configured to be a sealed area for preventing an external object from entering.

The invention discloses a slot coupling rotary polarized antenna, which comprises a coupling structure, a radiation line supporting structure, a first radiation line and a second radiation line, wherein one end of the first radiation line is fixed to the upper surface of the radiation line supporting structure through a first pin, the other end of the first radiation line is arranged downwards in the reverse or hour hand or clockwise direction, and one end of the second radiation line is fixed to the upper surface of the radiation line supporting structure through a second pin. The other end of the second radiation line is arranged upwards in the anticlockwise or clockwise direction; an I-shaped slot is etched in one surface, close to the radiation supporting structure, of the coupling structure, a waveguide is arranged in the coupling structure, the input end of the waveguide is located on the outer side of the coupling structure, and the output end of the waveguide is located in the I-shaped slot. The slot coupling rotary polarized antenna provided by the invention is simple and compact in structure and low in cost, the thickness of the antenna is reduced, and the cross polarization isolation is improved through the self-reversal-rotation design.

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.

The embodiment of the invention provides a radiation intensity detection system and a radiation intensity detection method, and relates to the technical field of nuclear radiation monitoring. The system comprises a radiation measuring instrument and a first upper computer. The radiation measuring instrument comprises a Geiger counter, an electronic switch, a timer and a controller. The Geiger counter performs radiation ray detection on the scene to be detected to obtain a pulse signal; the timer determines the to-be-used duration between the receiving starting moment of each pulse signal and the moment when the pulse signal has a rising edge, and sends a timing ending signal to the electronic switch when each pulse signal has the rising edge; the electronic switch controls the Geiger counter to stop working when receiving the timing ending signal every time, and controls the Geiger counter to start working when a preset duration is reached; the controller calculates the to-be-utilized radiation intensity based on the to-be-utilized duration; and the first upper computer predicts the radiation intensity according to the to-be-utilized radiation intensity by using the prediction model, so that the radiation intensity can be accurately predicted.