178 results about "Radiation level" patented technology

A hospital proton zone radiation protection performance intelligent monitoring and evaluation method and device relate to the radiation monitoring field, and the method comprises the following steps: carrying out three-dimensional scanning on an actual building structure and an actual device layout of a target proton treatment center to obtain three-dimensional scanning data, and correcting a preset BIM model by using the three-dimensional scanning data to obtain a three-dimensional building model; after the detection equipment is started, obtaining a measured dose rate level of the target proton treatment center at a preset target measurement point; and performing curve fitting on the measured dose rate level to obtain a measured dose rate curve, fusing the simulated dose rate level and the measured dose rate curve to obtain an actual dose rate level of each building structure position, and mapping the actual dose rate level into a three-dimensional building model to obtain a three-dimensional dose distribution diagram. By implementing the method, the radiation protection level of the proton treatment area of the hospital can be displayed more visually.

Interstitial brachytherapy is a cancer treatment in which radioactive material is placed directly in the target tissue of the affected site using an afterloader. The accuracy of this placement is monitored in real time using a urinary catheter that locates the radioactive material according to the radiation levels measured by sensors in the walls of the urinary catheter. A scintillator that is embedded in the walls of the urinary catheter produces light when irradiated by the radioactive material. This light is proportional to the level of radiation at each location. The light produced by each scintillator is carried through optical fibers and then converted to an electrical signal that is proportional to the light and the radiation level at each location. The radioactive material is located according to the plurality of electrical signals. This location can be used as quality control feedback to the afterloader.

The invention relates to an anti-radiation level conversion circuit. The circuit comprises a level conversion circuit based on a DICE structure and an anti-radiation reinforcement circuit. The level conversion circuit based on the DICE structure is used for realizing level conversion by adopting redundant control nodes; comprising an input module and a DICE module, and the DICE module comprises four branches formed by connecting one PMOS transistor and one NMOS transistor in series; drain electrodes of the PMOS transistor and the NMOS transistor in each branch are connected to serve as a control node; the input module is used for controlling an MOS switch to transmit a differential input signal to the DICE module through a transmission tube; and the anti-radiation reinforcing circuit is used for performing feedback regulation on the control nodes of the second branch and the third branch through the cross coupling structure. The circuit can complete level switching from ultra-low voltage to high voltage, the radiation resistance of the level converter is improved, the level converter can resist severe environments, and meanwhile power consumption and delay are reduced.

The invention discloses a transformer electromagnetic radiation minimization method and system, and relates to the technical field of power systems, and the method comprises the steps: building an electromagnetic radiation model; using a sensor to collect transformer radiation influence parameters in real time; inputting the influence parameters into the electromagnetic radiation model; operating parameter optimization is initiated when the predicted radiation level exceeds a safety threshold. According to the transformer electromagnetic radiation minimization method provided by the invention, by predicting the future electromagnetic radiation level of the transformer and adjusting the operating parameters of the transformer in real time, the change of the operating state and the environmental condition of the transformer can be dynamically coped with, so that more accurate and effective electromagnetic radiation control is realized.

Interstitial brachytherapy is a cancer treatment in which radioactive material is placed closely to the target tissue of the affected site using an afterloader (HDR-brachytherapy) or manually (LDR- and PDR-brachytherapy). For HDR-brachytherapy, the accuracy of this placement is calibrated using an external reference system that locates the radioactive material according to the radiation levels measured at locations around the source. At each of these locations, a scintillator produces light when irradiated by the radioactive material. This light is proportional to the level of radiation at each location. The light produced by each scintillator is converted to an electrical signal that is proportional to the light and the radiation level at each location. The radioactive material is located according to the plurality of electrical signals.

The invention relates to the technical field of transformation ratio monitoring, and particularly discloses an online monitoring method and device for the current transformation ratio of the high and low voltage sides of a combined mutual inductor, a processor and a storage medium, and the method comprises the steps: obtaining the historical current data of the combined mutual inductor; determining a low-radiation period based on the historical current data; acquiring current primary side current data and current secondary side current data in the current low-radiation time period; performing data optimization on the current primary side current data and the current secondary side current data to obtain optimized current data; and generating a current transformation ratio based on the optimized current data. By analyzing a historical transformation ratio curve, the system can identify a time period with a relatively low radiation level, so that the influence of environmental factors on current measurement is reduced. And noise and interference in the current signal are reduced by smoothing the historical transformation ratio curve, so that the electrorheological ratio value is more stable and accurate. By identifying and determining the low-radiation time period, data errors caused by external interference can be effectively avoided, and the reliability of data is improved.

The invention relates to the technical field of radiation early warning, in particular to an ambient radiation influence early warning system for a proton treatment system. The system comprises a radiation monitoring data acquisition module, a radiation space distribution generation module, a radiation risk level determination module, a radiation leakage analysis module, a risk information dynamic notification module and a treatment optimization suggestion module. According to the invention, through real-time monitoring and data integration of the radiation monitoring environment, the response speed and accuracy of radiation safety early warning are improved, and a detailed radiation distribution diagram can be constructed by using spatial data and radiation intensity information, so that risk assessment is more visual and easy to understand; the accurate assessment of the radiation risk allows specific and targeted protection measures to be taken, the potential leakage points are classified according to the radiation level deviation, the risk information is dynamically reported, it is ensured that the therapeutic personnel can receive key safety alarms in time, the therapeutic process is optimized, and the radiation risk of the patient is reduced.

The invention discloses a high-reliability cold backup satellite-borne broadband waveform generation assembly, which comprises a main waveform generation module, a backup waveform generation module, an anti-radiation power supply chip and an up-conversion module, and is characterized in that the two waveform generation modules have the same structure and are used for generating broadband waveform signals; the up-conversion module performs up-conversion on broadband waveform signals output by the two waveform generation modules and outputs the broadband waveform signals, and the anti-radiation power supply chip performs mutual exclusion power supply on the two waveform generation modules. The waveform generation module comprises an anti-radiation FPGA chip, an anti-radiation high-speed DAC chip, an anti-radiation FLASH chip, an anti-radiation read-back refreshing chip, an anti-radiation differential transceiver chip and an anti-radiation level conversion chip, the anti-radiation read-back refreshing chip periodically reads a configuration program stored in the anti-radiation FLASH chip, the anti-radiation FPGA chip carries out configuration program refreshing, and the anti-radiation level conversion chip carries out level conversion. Therefore, the bit error upset in the anti-radiation FPGA chip can be corrected. According to the invention, the problems in the prior art can be solved, and the anti-radiation capability and reliability of the assembly are greatly improved.

The invention discloses an anti-radiation isolation device for medical images, and relates to the technical field of medical instruments, and the device comprises a radiation detection module which is responsible for monitoring the radiation intensity in an environment in real time; the adjustment control module is responsible for automatically adjusting protection measures according to data of the radiation detection module; the display and control module is responsible for providing a visual operation interface and real-time information display for medical staff; the data recording and analyzing module is responsible for recording radiation level, adjusting history and other related data for subsequent analysis and reporting; according to the invention, the shielding cloth body can be retracted and released by rotating the shielding cloth retracting and releasing roller, and the protective door can be lifted by rotating the threaded rod, so that the opening and closing of the protective door can be controlled, that is, proper radiation isolation measures can be taken according to the radiation intensity of the current environment; and the working efficiency can be improved on the premise of ensuring the safety.

The invention relates to the technical field of nuclear power plants, in particular to a nuclear power plant radiation signal monitoring device and method, electronic equipment and a storage medium. The nuclear power plant radiation signal monitoring device comprises a power supply module, a radiation detector, a processing control module, a monitoring indication module and an integration module. The radiation detector is divided into a low-dose detection branch and a high-dose detection branch which are respectively provided with a corresponding sensitive element and a signal conditioning module so as to adapt to radiation environments with different dose rates. The processing control module is responsible for selecting a proper detection branch according to the radiation level and generating a monitoring indication signal. And the monitoring indication module receives the signals and executes monitoring response operation, and through unified management of the integrated module, effective monitoring of the wide-range radiation signals is realized, and the complexity and cost of the system do not need to be remarkably increased. Therefore, radiation signals in a wide range can be effectively acquired under the condition that complexity and cost do not need to be obviously increased.

The embodiment of the invention provides a dual-polarization indoor distribution antenna, and belongs to the antenna communication equipment technology, the dual-polarization indoor distribution antenna comprises a vertical polarization radiation unit and a horizontal polarization radiation unit, the vertical polarization radiation unit comprises a grounding plate and a conical radiation oscillator arranged on the grounding plate, the conical radiation oscillator is used for being excited to radiate vertical polarization electromagnetic waves; the horizontally polarized radiation unit comprises a plurality of radiation subunits, the plurality of radiation subunits are sequentially arranged around the peripheral side of the conical radiation oscillator, a radiation gap is formed between every two adjacent radiation subunits, and the radiation gaps are used for being excited to radiate horizontally polarized electromagnetic waves; the orthographic projection of the radiation subunit on the grounding plate is located in the grounding plate. According to the dual-polarization indoor distribution antenna provided by the embodiment of the invention, broadband coverage can be realized, and the multi-band requirement of an indoor communication system is met.

The invention relates to an oral X-ray machine room for a residential building, a design method and a fixed machine room, an oral X-ray machine is mounted in a closed space formed by M mounting surfaces, and M is a positive integer and is greater than or equal to 6; the partition plate is arranged in the fixed machine room, is parallel to the mounting surface and is at least a meters away from the mounting surface, the interval between the partition plate and the mounting surface forms an interlayer, and a is a natural number greater than or equal to 0; and the detection port is arranged on the mounting surface, is communicated with the interlayer and the outer side of the fixed machine room, and is used for detecting the radiation level in the interlayer through the detection port. The technical problem that the oral clinics are difficult to operate normally due to the fact that the neighbors in the residential building do not cooperate with radioactive examination is solved.

The invention discloses a transmitting power configuration method and device, equipment, a storage medium and a product, and relates to the technical field of communication, and the method comprises the steps: determining a unified upper limit transmitting power according to a target overall electromagnetic radiation level value and a total number; generating a target power coordination strategy of each antenna according to the current application scene; and adjusting the unified upper limit transmitting power according to each power coordination strategy, and configuring the adjusted upper limit transmitting power for the corresponding antenna. Through the mode, the unified upper limit transmitting power is determined according to the target overall electromagnetic radiation level numerical value and the total number, and then the target power coordination strategy is generated according to the current application scene, so that an isolation decision mode among the communication units in the target communication module is broken, unified power management among the multiple communication units is realized, and the communication efficiency is improved. And then the adjusted upper limit transmitting power is configured for the corresponding antenna, so that the transmitting power configuration accuracy can be effectively improved, and the dual requirements of communication experience and compliance are ensured.

An optical fiber-based sensing membrane includes at least one optical fiber and a substrate. The at least one optical fiber is integrated in the substrate. The optical fiber-based sensing membrane includes, based on a specified geometric pattern of the at least one optical fiber, an optical fiber-based sensing membrane layout. The substrate includes a thickness and a material property that are specified to ascertain, via the at least one optical fiber and based on the optical fiber-based sensing membrane layout, a thermal property or a mechanical property associated with a device, or a radiation level associated with a device environment.

Arrays are configured to detect temperatures, radiation levels, strain, seismic vibrations, water levels, and other physical characteristics and report the same by transmission of electromagnetic radiation along a carrier fiber. No associated thermal mass may be required; the fiber itself may scatter or emit light in amounts, frequencies, intervals, etc. that directly indicate the characteristics. The arrays are useable in remote and inhospitable conditions and may report data over kilometers. Luminescence or scattering like Raman, Rayleigh, or Brilliouin scattering may cause the emission or scattering, and a computerized interpreter may detect the light and associate it with the characteristics for output to a user. Silica, silicon dioxide, quartz, acrylate, silicone, fluoropolymers, sapphire, rare earth elements, halogens, boron, germanium oxides, carbon-doped aluminum oxide are all useable for this effect, potentially at several hundred degrees Celsius without failure.

The invention belongs to the technical field of nuclear facility decommissioning and three-waste treatment, and particularly relates to an automatic laser decontamination system and method for polluted metal waste of a nuclear power plant. The decontamination / cutting workbench is transferred to all stations and an operation table through a transfer trolley; the operation table is used for controlling the transfer of the transfer trolley, controlling the operation of the workpiece turnover device, measuring the size of a to-be-decontaminated item and measuring the surface contamination level and radiation level of the to-be-decontaminated item before and after decontaminating; and the controller is used for recording a measurement result, presetting cutting parameters and decontamination process parameters of a to-be-decontaminated item, and controlling the laser cutting device, the laser cleaning device and the laser stripping device to carry out laser cutting and automatic laser decontamination operation. According to the invention, the labor intensity of personnel can be effectively reduced, the exposure dose of the personnel is reduced, the decontamination working efficiency is improved, waste degradation or clean control of surface polluted metal waste is realized, and waste minimization is further realized.

This application provides a communication method, apparatus, storage medium, and computer program product. The communication method includes: in response to the influence of the Maximum Allowable Radiation Level (MPE) on a terminal device, recording radiation impact information caused by the MPE; receiving a first Radio Resource Control (RRC) reconfiguration message from a source base station; recording a measurement report from the terminal device; and sending the measurement report and the radiation impact information to the source base station. Using this application embodiment can reduce the impact of MPE on mobility and improve the handover success rate.

The present invention discloses an adaptive vehicle-mounted γ radiation patrol and survey system, which includes a γ radiation patrol and survey device, an adaptive adjustment bracket, and a result analysis module. The γ radiation patrol and survey device is installed on the adaptive adjustment bracket, and the γ radiation patrol and survey device is communicatively connected to the result analysis module; an adaptive vehicle-mounted γ radiation patrol and survey system has a reasonable measurement height, strong adaptability, a fast response speed of the γ radiation measurement device, accurate γ radiation measurement results, higher cooperation efficiency for multiple sets, can simultaneously display real-time patrol and survey trajectories and results, and can real-time produce γ radiation level isoline maps of emergency areas, providing real-time pollution situation and decision-making suggestions for nuclear and radiation accident emergencies; it has significant efficiency advantages during large-scale regional radiation patrol and survey.

Arrays are configured to detect temperatures, radiation levels, strain, seismic vibrations, water levels, and other physical characteristics and report the same by transmission of electromagnetic radiation along a carrier fiber. No associated thermal mass may be required; the fiber itself may scatter or emit light in amounts, frequencies, intervals, etc. that directly indicate the characteristics. The arrays are useable in remote and inhospitable conditions and may report data over kilometers. Luminescence or scattering like Raman, Rayleigh, or Brilliouin scattering may cause the emission or scattering, and a computerized interpreter may detect the light and associate it with the characteristics for output to a user. Silica, silicon dioxide, quartz, acrylate, silicone, fluoropolymers, sapphire, rare earth elements, halogens, boron, germanium oxides, carbon-doped aluminum oxide are all useable for this effect, potentially at several hundred degrees Celsius without failure.

The present invention belongs to the technical field of controlling the source term of radioactive anions in a primary circuit during a refueling overhaul of a nuclear power plant, and specifically relates to a system and method for purifying radioactive anions Sb-124 in a nuclear power plant. The system comprises: a primary circuit main pipeline, a reactor special drainage system, a chemical and volume control system degasser, and a primary circuit coolant temporary storage system. The primary circuit main pipeline is connected to the chemical and volume control system degasser via the reactor special drainage system, the chemical and volume control system degasser is connected to the primary circuit coolant temporary storage system to purify the Sb-124 nuclide, and the primary circuit coolant temporary storage system is connected to the primary circuit main pipeline to achieve closed-loop purification of the Sb-124 nuclide. The present invention can reduce the primary circuit Sb-124 radiation source term, reduce the radiation level in the maintenance area, and reduce the radiation exposure dose to personnel.

The utility model provides a radioactive source shell which comprises a source cover and a source frame installed together with the source cover, and an inner cavity is formed inside the source cover and the source frame. The radioactive source and the shielding column are placed in the inner cavity, and the shielding column is located above the radioactive source. The utility model further provides a radioactive source container which comprises the radioactive source shell and further comprises a barrel body composed of a barrel body bottom plate, an outer barrel body and a barrel body upper cover. A shielding layer is wrapped in the barrel body, and the radioactive source shell is arranged in the shielding layer in the barrel body; and the upper part of the barrel body upper cover is also covered with a cover. According to the radioactive source shell, the length of the source frame is shortened, the shielding columns are additionally arranged, the length of the source cover is increased, the shielding effect of the top of a container is improved, after the radioactive source shell is placed in the radioactive source container, shielding bodies are arranged on the periphery, the upper portion and the lower portion of a radioactive source, and meanwhile radiation levels in all directions of the periphery of the container are almost consistent.

The embodiment of the invention provides a radiation monitoring device and method and electronic equipment, and relates to the technical field of health monitoring. The device comprises a radiation sensor, a timing module and a radiation value processing module, wherein the radiation sensor is electrically connected with the timing module and the radiation value processing module respectively; the timing module is used for acquiring radiation monitoring time of the current wearing object; the radiation sensor is used for acquiring the current in-vivo radiation value of the current wearing object within the radiation monitoring time; and the radiation value processing module is used for determining the current radiation level of the current wearing object according to the current in-vivo radiation value and a preset nuclear medicine radiation value. Thus, the current in-vivo radiation value of the current wearing object is obtained in time within the proper radiation monitoring time through the radiation sensor and the timing module, and the current radiation level is determined according to the current in-vivo radiation value and the preset nuclear medicine radiation value, so that the actual radiation condition of a patient can be better reflected, and powerful support is provided for medical decision making.

The invention discloses a method and system for evaluating and forecasting water-wind-solar complementary characteristics based on grading. The method comprises the following steps: acquiring historical meteorological data of continuous multiple days in a target area; the meteorological data comprises wind speed, total radiation and precipitation; according to the wind speed, the total radiation and the precipitation of multiple days, the quartile, the average value and the positive and negative two-time standard deviation of the wind speed, the total radiation and the precipitation of multiple days are calculated, and according to the quartile, the average value and the positive and negative two-time standard deviation of the wind speed, the total radiation and the precipitation of multiple days, the average value and the positive and negative two-time standard deviation are calculated. Calculating division intervals of different grades of wind, light and water according to different grades of wind, light and water power generation efficiency; future forecast meteorological data are obtained, and grades corresponding to future wind speed, total radiation and precipitation are calculated according to different grades of divided intervals of wind, light and water; and adding the future forecast wind speed grade, the current day total radiation grade and the future forecast precipitation grade to obtain a complementary characteristic index. According to the invention, the water-wind-light complementary characteristic index can be accurately evaluated and forecasted.

This invention relates to the field of radiation early warning technology, specifically to an early warning system for the radiation impact on the environment surrounding a proton therapy system. The system includes a radiation monitoring data acquisition module, a radiation spatial distribution generation module, a radiation risk level determination module, a radiation leakage analysis module, a dynamic risk information notification module, and a treatment optimization suggestion module. In this invention, by real-time monitoring and data integration of the radiation monitoring environment, the response speed and accuracy of radiation safety early warning are improved. By utilizing spatial data and radiation intensity information, a detailed radiation distribution map can be constructed, making risk assessment more intuitive and easier to understand. Accurate assessment of radiation risk allows for specific and targeted protective measures, and potential leakage points are classified according to radiation level deviations. Dynamic notification of risk information ensures that treatment personnel receive critical safety alerts in a timely manner, optimizing the treatment process and reducing the radiation risk to patients.

A system for monitoring ultraviolet (UV) exposure of a wearer. The system comprises a wearable device operable to sense UV radiation levels to which the wearer is exposed, and to transmit UV radiation information. The system further comprises an external computing device in remote communication with the wearable device, operable to receive the UV radiation information from the wearable device and configured to determine the wearer's real-time UV index value and the wearer's daily cumulative percentage of minimal erythema dose based upon the UV radiation information.

To provide a measurement value recording device, radiation measurement recording system, measurement value recording method and program that can reduce a radiation exposure dose of a measurer measuring radiation.SOLUTION: A measurement value recording device to be carried by a measurer measuring a level of radiation in a nuclear power plant comprises: a measurement value acquisition unit that acquires a measurement value indicative of the level of the radiation; a measurement location acquisition unit that acquires information indicative of a measurement location in the nuclear power plant; a recording unit that stores, in association with each other, the measurement value acquired by the measurement value acquisition unit and the information indicative of the measurement location acquired, related to the acquisition of the measurement value, by the measurement location acquisition unit; and a determination unit that determines whether or not the measurement value acquired by the measurement value acquisition unit exists within an allowance range based on a reference value associated with the information indicative of the measurement location acquired, related to the acquisition of the measurement value, by the measurement location acquisition unit, and when determining that it does not exist, performs prescribed notification processing.SELECTED DRAWING: Figure 2

The utility model provides an exemption-level while-drilling natural gamma and energy spectrometer graduator, which belongs to the technical field of underground geological mineral exploration and detection equipment and comprises a film for an energy spectrometer, the film for the energy spectrometer is prepared by mixing natural radiation raw materials and adhesives, and the proportion of the natural radiation raw materials and the adhesives can be adjusted according to requirements. The natural radiation raw materials comprise natural uranium-containing rock powder and natural thorium-containing rock powder, and the ratio of uranium in the natural uranium-containing rock powder to thorium in the natural thorium-containing rock powder is 2: 1. The exempt-level while-drilling natural gamma and energy spectrometer film does not belong to a radioactive source, and the radiation level belongs to an exempt level; the radiation spectrum is highly similar to the spectrum of radium 226, radon gas harmful to people is not generated in the storage state, an existing radioactive source radium 226 can be replaced, use is safe, and the while-drilling natural gamma and energy spectrum instrument can work under the uniform and stable working condition.

Interstitial brachytherapy is a cancer treatment in which radioactive material is placed directly into target tissue at the affected site using a afterloading machine. The accuracy of this placement is monitored in real time using a catheter, which positions the radioactive material based on radiation levels measured by sensors embedded in the catheter wall. A scintillator embedded in the catheter wall produces light when irradiated with the radioactive material. This light is proportional to the radiation level at each location. The light produced by each scintillator is transmitted via optical fiber and then converted into an electrical signal proportional to the light and radiation levels at each location. The location of the radioactive material is determined based on multiple electrical signals. This location can be used as quality control feedback to the afterloading machine.

A method and device for intelligently monitoring and evaluating the radiation protection performance of a hospital's proton therapy area relates to the field of radiation monitoring. The method includes: performing a 3D scan of the actual building structure and equipment layout of a target proton therapy center to obtain 3D scan data, and then modifying a preset BIM model using the 3D scan data to obtain a 3D building model. After the detection equipment is turned on, the measured dose rate level of the target proton therapy center at a preset target measurement point is obtained. The measured dose rate level is curve-fitted to obtain a measured dose rate curve. The simulated dose rate level and the measured dose rate curve are then merged to obtain the actual dose rate level at each building structure location. The actual dose rate level is then mapped onto the 3D building model to obtain a 3D dose distribution map. Implementing this method can more intuitively demonstrate the radiation protection level of a hospital's proton therapy area.

The utility model provides an MBBR (Moving Bed Biofilm Reactor) degradable biological filler device and belongs to the technical field of sewage treatment. Comprising a plurality of biological carriers placed in a container, and each biological carrier comprises a biological filler body. The multiple biological carriers are arranged, the biological filler body can bear a certain radiation level and can be degraded in the environment after being used, the influence on the environment is reduced, the multiple stages of biological membrane areas are used for increasing the growth space of microorganisms, different types of microorganisms can grow on different stages, the treatment efficiency is improved, and the treatment cost is reduced. The micropore channels promote the effective contact area between nutrient substances and microorganisms, increase the opportunity of the microorganisms to obtain nutrients and improve the activity and degradation capacity of the microorganisms, and the protrusions are used for increasing the contact area between the nutrient substances and the microorganisms and are beneficial to improving the substance exchange efficiency and enhancing the treatment capacity of the biological carrier. The contact efficiency and the degradation efficiency of microorganisms and pollutants in the sewage treatment process are improved.