51 results about "Radiation attenuation" patented technology

The invention relates to the technical field of photovoltaic panels, and discloses a photovoltaic panel dust deposition state-based power generation power prediction method, which comprises the steps of obtaining an infrared radiation image and spectral data of a photovoltaic panel, and performing primary processing on the infrared radiation image to obtain a calibration temperature matrix and a pre-processing image set; after the visible light or the ultraviolet light is converted to generate electric energy, actually measured power generation efficiency is collected for error calculation, a dynamic calibration process is triggered based on errors, and a calibrated power generation power prediction value is obtained; according to the invention, through coupling radiation attenuation, temperature loss, wind speed loss and other multi-physical field effects, the infrared spectroscopic analysis is utilized to identify dust components, so that the accuracy and operability of a physical mechanism are enhanced; besides, in combination with multi-source data such as infrared data, meteorological data and spectrum data, extreme conditions such as high humidity, strong wind speed and multi-type dust deposition can be effectively handled, the risk of single data source deviation is reduced, and high robustness and generalization ability are achieved.

A radiation safety apparatus for a semiconductor processing system has a safety fence with a support frame and radiation shields defining containment regions associated with load ports of the semiconductor processing system. The containment regions are associated with radioactive sources that emit radioactive radiation, where radiation shields attenuate the radiation to a region external to the containment regions. The radiation shields have access doors movably coupled to the support frame to provide access to the containment regions. Interlocks are provided with the access doors to selectively lock the access doors in a closed position to control the access to the containment regions from the external region through the access doors. A controller controls the interlocks based on a radiation decay associated with each of the radioactive sources and a predetermined safe radiation exposure level.

The invention discloses an X-ray fluorescence spectrum detection method and system for bauxite, a medium and a product, and relates to the technical field of bauxite detection. According to the method, firstly, fluorescence spectrum data of a sample to be detected and mining area environment fingerprint data are obtained, and the initial concentration is determined through background noise stripping; then constructing a mineral phase interference network, calculating an interface radiation attenuation rate and a secondary fluorescence excitation probability based on mineral phase characteristics, and generating an interphase coupling interference matrix; constructing a stress field model according to environmental parameters, and correcting an interference matrix by using a lattice distortion coefficient; and inputting the symbiotic mineral phase combination into the environment adaptive interference model, and determining a nonlinear matrix effect deviation value. And finally, carrying out iterative compensation correction until the difference between adjacent correction values is smaller than a threshold value, and outputting accurate grade data of the target metal element. By implementing the technical scheme provided by the invention, the accuracy of X-ray fluorescence spectrum detection of bauxite can be improved.

The invention discloses an epoxy composite coating with radiation attenuation performance and a preparation method thereof. The preparation process of the composite coating comprises the following steps: firstly, preparing a core-shell structure anti-radiation filler of a silicon dioxide shell layer through auxiliary ball milling of tetraethoxysilane, and then preparing a modified anti-radiation filler through further surface treatment of gamma-aminopropyltriethoxysilane (KH550); and finally, mixing the modified filler with epoxy resin to obtain the epoxy composite coating with the radiation shielding performance. The prepared composite coating has good thermal stability and adhesive strength, has excellent X / gamma ray attenuation performance and can be used for radiation attenuation of the surface of metal equipment.

The invention relates to a distributed photovoltaic short-term power generation power prediction method, system, device and medium, and belongs to the technical field of photovoltaic power prediction.The distributed photovoltaic short-term power generation power prediction method comprises the steps that a continuous multi-frame satellite cloud picture sequence is obtained, an independent cloud layer target is recognized and matched, and the vector angle of the moving direction of the independent cloud layer target is calculated; generating a moving track line of each cloud layer based on the moving direction vector angle, analyzing a thickness parameter value of each cloud layer from the generated cloud layer shielding time sequence, further obtaining a corresponding solar radiation attenuation coefficient, and accurately analyzing the coverage area percentage and the coverage duration of the cloud layer above the power station, so as to obtain the solar radiation attenuation coefficient of the power station. By accurately describing the dynamic characteristics of the cloud layer and the influence of the cloud layer on solar irradiation, the distributed photovoltaic short-term power generation power prediction precision is remarkably improved, and reliable data support can be provided for power station operation scheduling, power grid power balance and energy optimization configuration.

This invention relates to a method, system, medium, and product for X-ray fluorescence spectrometry detection of bauxite, belonging to the field of bauxite detection technology. The method first acquires fluorescence spectral data and mining area environmental fingerprint data of the sample to be tested, and determines the initial concentration by background noise stripping. Then, a mineral phase interference network is constructed, and the interfacial radiation attenuation rate and secondary fluorescence excitation probability are calculated based on mineral phase characteristics to generate an interphase coupling interference matrix. Next, a stress field model is constructed based on environmental parameters, and the interference matrix is ​​corrected using the lattice distortion coefficient. The coexisting mineral phase combination is input into the environmental adaptive interference model to determine the nonlinear matrix effect deviation value. Finally, iterative compensation correction is performed until the difference between adjacent correction values ​​is less than a threshold, outputting accurate grade data of the target metal element. Implementing the technical solution provided in this application can improve the accuracy of X-ray fluorescence spectrometry detection of bauxite.

The present application relates to the technical field of radiation protection barrier production, and particularly relates to a vehicle-mounted radiation protection barrier online evaluation method and system for physical examination, which obtains process parameter information of a workpiece to be evaluated, obtains specification parameters of the workpiece to be evaluated based on the process parameter information, constructs a simulated three-dimensional model diagram of the workpiece to be evaluated if the actual radiation attenuation rate value is not greater than the preset radiation attenuation rate threshold, and preforms a crack sample model diagram, obtains a screened three-dimensional model diagram based on the simulated three-dimensional model diagram and the crack sample model diagram, obtains crack characteristic information in the screened three-dimensional model diagram, evaluates the workpiece to be evaluated based on the crack characteristic information, and obtains a first evaluation result or a second evaluation result. The present application can obtain the best repair scheme of unqualified semi-finished lead plates, so as to repair the semi-finished lead plates and reduce the scrap cost.

The invention provides a binocular infrared wide-area calorific value detection method based on distance and environmental background compensation, which comprises the following steps: acquiring a fused infrared radiation image and a visible light binocular image, and introducing an atmospheric transmissivity calculation mechanism based on an infrared radiation transmission physical model, pixel-by-pixel compensation is carried out on infrared radiation attenuation of different distances and environment conditions; the infrared radiation image is subjected to background segmentation, an environment background area of a non-heat source target is extracted, an environment background radiation field covering a monitoring range is reconstructed, and a radiation correction value of the surface of the heat source target is calculated according to the atmospheric transmissivity, the environment background radiation field and a radiation value of a pixel corresponding to the heat source target in the infrared radiation image. Therefore, the actually measured temperature is obtained. According to the method, differentiated distance compensation and environment compensation can be carried out on wide-area and multi-target scenes, temperature measurement errors under complex environment conditions are effectively reduced, and the accuracy and stability of infrared heat value detection in wide-range monitoring application are remarkably improved.

The invention discloses a water-based composite coating with X / gamma ray attenuation performance and a preparation method thereof. The preparation process of the composite coating comprises the following steps: firstly, preparing a core-shell structure modified anti-radiation filler of a silicon dioxide shell layer through auxiliary ball milling of tetraethoxysilane, and then preparing the water-based composite coating with stable performance by utilizing the hydrogen-bond interaction of the modified anti-radiation filler with water-based polyurethane and polyvinyl alcohol. The composite coating prepared by the invention has good thermal stability and mechanical properties, also has excellent X / gamma ray attenuation performance, and can be used for radiation attenuation of equipment and fabric surfaces.

A collimator includes a collimator cover formed from a material with low radiation attenuation, and a plurality of septa formed from a radiation attenuating material. The collimator cover includes a base plate, a first side plate extending from the base plate, and a second, opposing side plate extending from the base plate. The first side plate has a plurality of first slots defined therein and the second side plate has a plurality of second slots defined therein. Each septum includes a first end retained in one first slot of the plurality of first slots and a second end retained in one corresponding second slot of the plurality of second slots.

The present application relates to a scatter model derivation apparatus, a radiation image processing apparatus, a method thereof, and a storage medium. The apparatus includes: a reference image acquisition unit configured to acquire at least one reference image representing a reference object having different thicknesses, the at least one reference image being obtained by radiographing the reference object with a radiation detector in a state in which the reference object is interposed between the reference object and the radiation detector; a reference object thickness and radiation attenuation coefficient relationship derivation unit configured to derive a relationship between a thickness of the reference object and a radiation attenuation coefficient of the reference object corresponding to an energy characteristic of the radiation and reflecting an influence of beam hardening caused by the reference object and an object; a primary ray component derivation unit configured to derive a primary ray component corresponding to the thickness of the reference object included in the reference image based on the relationship between the thickness of the reference object and the radiation attenuation coefficient of the reference object; a scatter ray component derivation unit configured to derive a scatter ray component corresponding to the thickness of the reference object included in the reference image based on a difference between the reference image and the primary ray component; and a scatter model derivation unit configured to derive a scatter model representing a relationship between the thickness of the reference object and a proportion of the scatter ray component with respect to the primary ray component.

The invention relates to the technical field of medical health, in particular to an intelligent evaluation and intervention system for muscle quality of a patient with advanced solid tumors. The multi-dimensional dynamic evaluation unit is used for forming the extracted somatic cell mass, the score of the anorexia-cachexia syndrome, the standardized skeletal muscle index and the average muscle radiation attenuation value into multi-dimensional feature data, and the multi-dimensional dynamic evaluation unit is used for evaluating the quality of the somatic cells on the basis of the multi-dimensional feature data and fusing tumor treatment scheme data. Generating a multi-dimensional muscle health index and a malignant fluid risk probability through a decision tree model, and dividing patients into different risk levels; and the intervention strategy generation unit is used for outputting a comprehensive intervention scheme based on the multi-dimensional muscle health index and the malignant fluid risk probability in combination with the real-time tolerance data and the risk level of the patient. According to the system, the L3 level skeletal muscle index and the muscle radiation attenuation value can be extracted more accurately and stably, manual annotation and manual variation are reduced, and the reliability of image quantification is improved.

The invention discloses a medium-wave thermal imager calibration method for solid engine tail flame radiation measurement. The method comprises the following steps: measuring image data of a target black body at a corresponding temperature in real time through a medium-wave thermal infrared imager additionally provided with a specific optical filter; performing time dimension alignment and static and dynamic region division on the target area array black body infrared image data to obtain target area array black body static and dynamic infrared features; performing mean value estimation on the target area array black body features to obtain black body uniform feature information at the target temperature; performing characteristic-radiance calibration and curve fitting on the measurement data corresponding to the intermediate infrared thermal imager through the Planck's law of radiation to obtain a calibration equation corresponding to the intermediate infrared thermal imager; and an attenuation piece is additionally arranged again, intermediate infrared calibration equations under different configurations are obtained, and then the infrared radiation attenuation ratio is calculated. According to the invention, high-precision calibration of the intermediate infrared thermal imager can be realized, and the radiation brightness measurement precision and reliability of the intermediate infrared thermal imager can be improved.

The invention relates to the technical field of ion beam irradiation treatment radiation protection, and provides a treatment room radiation shielding system and method based on a rotating beam line, and the system comprises a central equipment room which is internally provided with rotatable treatment equipment; the plurality of treatment rooms are arranged around the central equipment room, and each treatment room is used for treating a patient; the radiation shielding wall body comprises a shielding partition wall and a shielding enclosure wall, the shielding partition wall is arranged between the adjacent treatment rooms, and the shielding enclosure wall is arranged on the periphery of the treatment rooms; a radiation attenuation channel communicated with the treatment room is defined by the shielding partition wall and the shielding enclosing wall. According to the treatment room radiation shielding system based on the rotating beam wire, the radiation attenuation channel communicated with the treatment room is defined by the shielding partition wall and the shielding enclosing wall, the space utilization rate is improved, and the limited space radiation shielding problem of the treatment room is solved.

The application provides a high-voltage cable joint temperature detection method and system, and relates to the technical field of temperature detection. The method comprises the following steps: obtaining actual radiation intensity data of a sensitive wave band and a reference wave band, and original radiation intensity data emitted by a high-voltage cable joint; according to the actual radiation intensity data, calculating the respective radiation attenuation amounts of the sensitive wave band and the reference wave band respectively and analyzing the relative difference characteristics therebetween; according to the relative difference characteristics, determining a transmission compensation index of a transparent shielding member; using the transmission compensation index to correct the original radiation intensity data to obtain corrected data, and obtaining the real temperature of the high-voltage cable joint based on the corrected data. The method aims to solve the problem that the temperature detection result of the high-voltage cable joint is inaccurate due to the attachment of oily substances on the inner wall of the transparent shielding member in the prior art, and improves the accuracy of the high-voltage cable joint temperature detection.

The present disclosure relates to a distributed photovoltaic short-term power generation power prediction method, system, device and medium, belonging to the technical field of photovoltaic power prediction, the distributed photovoltaic short-term power generation power prediction method, by acquiring continuous multiple frame satellite cloud picture sequence, identifying and matching independent cloud layer target, calculating its moving direction vector angle, generating the moving trajectory line of each cloud layer based on the moving direction vector angle, by from the generated cloud layer obscuration time sequence, the thickness parameter value of each cloud layer is parsed out, and the corresponding solar radiation attenuation coefficient is further obtained, while accurately analyzing the coverage area percentage and coverage duration of the cloud layer above the power station, by accurately depicting the dynamic characteristics of the cloud layer and its influence on the solar radiation, the prediction accuracy of the distributed photovoltaic short-term power generation power is significantly improved, which can provide reliable data support for power station operation scheduling, power grid power balance and energy optimization configuration.

The invention discloses a method and a system for predicting output power of an offshore photovoltaic system, particularly relates to the technical field of power prediction data processing, and is used for solving the problem of insufficient prediction precision caused by the fact that the dynamic attitude change of a floating photovoltaic platform in waves is not considered in the existing prediction method. The method comprises the following steps: determining a dominant motion mode of a platform and generating a time-varying attitude angle sequence by acquiring real-time wave spectrum data and platform structure parameters of a target sea area; carrying out geometric coupling on the sequence and a sun position vector, and dynamically solving an effective sunlight incident angle cosine value on the surface of the photovoltaic panel; then combining real-time cloud layer monitoring information, comprehensively evaluating geometric attenuation caused by waves and atmospheric attenuation caused by cloud layers, and obtaining a comprehensive radiation attenuation degree; correcting the total solar radiation data of the horizontal plane by using the attenuation degree, and generating an effective solar radiation intensity sequence projected to the surface of the photovoltaic panel; and finally, inputting the sequence into a prediction model and outputting a predicted power value of the offshore photovoltaic system.

The application discloses a three-dimensional radiotherapy dose prediction method based on distance prior and local ranking loss. In view of the target boundary leakage and optimization instability problems existing in the traditional model, the method adopts a SwinUNETR network, and a continuous spatial distance map is injected at the input end to assist the model in establishing the physical law of radiation attenuation. At the same time, a boundary-aware local ranking loss is proposed, which accurately applies a one-way topological penalty to the 3mm high-risk area at the junction of the target area and the organ at risk, truncates the dose leakage and promotes the energy to gather in the target area. Experiments prove that the method makes the core target area coverage index D95 jump to 42.798Gy, and the irradiated volume V50 of the organ at risk is reduced to below 0.005%, realizing high-precision and high-safety radiotherapy dose distribution prediction.

The invention provides a composite material and a light-emitting device. The composite material comprises a heat exciton material and a fluorescent material. The composite material provided by the invention can realize simultaneous utilization of singlet and triplet excitons, so that the utilization efficiency of exciton energy is improved, the recombination efficiency of current carriers is improved, the non-radiation attenuation process is reduced, and the luminous efficiency, brightness and the like are improved.

The invention belongs to the technical field of organic electroluminescent materials, and particularly relates to a unilaterally substituted indenofluorene compound and an organic electroluminescent device thereof. According to the unilaterally-substituted indenofluorene compound provided by the invention, anisotropic indenofluorene is used as a rigid framework, has an electron acceptor group, namely L-Ar, and has an electron donor group, namely a nitrogen-containing fused ring, namely, the TADF characteristic, and the exciton utilization rate of 100% can be realized. Besides, the electron acceptor group and the electron donor group on the same side are close enough in space distance, so that the transmission of current carriers can be promoted through a space charge transfer effect, rapid radiation attenuation can be realized, and high luminous efficiency can be further obtained; and the nitrogen-containing condensed ring with steric hindrance on the other side can prevent intermolecular accumulation, effectively inhibit aggregation quenching phenomena, realize high-efficiency luminescence and prolong the service life of the device, and can be used as a main body, so that the series of structures can be applied as a non-doped luminescent layer material.

The invention discloses a computing resource allocation method for mobile detection task scheduling in an extreme environment, which comprises the following steps of: calculating a priority coefficient of a task to be scheduled based on the time sensitivity, importance weight and resource occupancy rate of the task; outputting the actual energy efficiency ratio of the calculation core based on the basic energy efficiency of the calculation core and the temperature attenuation coefficient and the radiation attenuation coefficient in the current environment; dynamic load balancing is executed, a two-dimensional scheduling model is constructed based on the priority coefficient and the actual energy efficiency ratio, high-priority tasks are directionally distributed to a calculation core with the high actual energy efficiency ratio, and low-priority tasks are distributed to a calculation core with the low actual energy efficiency ratio; and an energy consumption prediction module is introduced to predict the calculation load in a future set time period, and the working state of the calculation core is adjusted in advance according to a prediction result. The total power consumption of the calculation module can be reduced, the cruising ability of the detector can be prolonged, and collaborative optimization of the task real-time requirement and the system energy consumption can be realized.

The invention relates to a multi-dimensional feature-based anti-infrared decoy interference target detection tracking method, and relates to the technical field of computer vision and target tracking, and the method comprises the steps: constructing a detection tracking network through a data set generated through simulation, and obtaining track-level time series data; extracting a radiation energy feature, a geometric contour feature and a motion vector feature of the target from the trajectory-level time sequence data, and fusing the features into a multi-dimensional dynamic vector; constructing a Trans-SRU cascade time sequence discrimination network, inputting a multi-dimensional dynamic vector, focusing a key radiation attenuation and maneuvering change stage in combination with parallel feature processing and a time attention mechanism, and outputting a classification result of a target and a bait; the defect that a traditional circulation network is insufficient in capturing the cross-cycle physical process is overcome, and the stable anti-interference capacity is provided for an infrared guidance system in the complex environment.

The utility model discloses a desktop type industrial CT is with protection shell, including upper casing, the lower casing of being located in the bottom of upper casing and the top cover of being located in the top of upper casing, the rear side of upper casing is equipped with a plurality of through grooves, and one side of through groove is equipped with heat dissipation subassembly, heat dissipation subassembly includes the heat dissipation plate of being fixed on upper casing, a plurality of heat dissipation channels that are located in the heat dissipation plate inside, the mounting frame of being fixed on heat dissipation plate and the fan of being fixed on mounting frame, and heat dissipation channel is equipped with the lead layer on the inner wall and is communicated with through groove, and the one side of heat dissipation plate is equipped with shielding assembly close to mounting frame. Through above -mentioned structure, the through groove on upper casing is communicated with the multi -bending heat dissipation channel inside heat dissipation plate, and the fan of installation is used for forced convection heat dissipation, realizes the heat dissipation of shell inside, and the inner wall of heat dissipation channel is plated lead, and adopts the multi -bending structure and forms the radiation attenuation path, and the radiation dose is reduced through multiple turns, and the heat dissipation performance is optimized while guaranteeing the radiation safety.

The present application relates to the field of infrared temperature measurement, more particularly to a temperature and humidity attenuation compensation method in infrared radiation temperature measurement, comprising: obtaining the temperature of a target object based on an infrared temperature measurement device, establishing a functional relationship between the spectral radiance, a given wavelength range and the target measured temperature, and calculating the spectral radiance corresponding to the target measured temperature and the ambient temperature respectively; also establishing a functional relationship between the water vapor absorption transmittance and the ambient temperature and humidity, and obtaining the water vapor absorption transmittance under different ambient temperatures and different ambient humidities; also deriving a correction formula of the target infrared radiation after attenuation by the ambient temperature and humidity based on the Kirchhoff's law of thermal radiation, and correcting the measured spectral radiance of the target object; finally inversely solving the real temperature of the target object. The present application can solve the problem of inaccurate infrared temperature measurement caused by inconsistent infrared radiation attenuation rules under different ambient temperature and humidity.

This invention relates to rigid structures and composite materials for providing radiation attenuation / shielding. Some embodiments relate to radiation shielding devices comprising: a plurality of positionable radiation shielding tile stacks. These stacks are arranged sequentially and adjacently. A tile positioning mechanism allows the tiles within the stacks to move between a stacked (retracted) position and an extended position. In the extended position, the tiles of each of the plurality of radiation shielding stacks at least partially overlap the tiles of sequentially adjacent tile stacks at their corresponding opposite side edges.

A radiation attenuating shield apparatus and associated systems, devices, and methods are disclosed herein. In some embodiments, a radiation attenuating shield apparatus includes a first radiation shield panel and a second radiation shield panel, both of which are composed of a material that at least partially blocks radiation. The radiation attenuating shield apparatus is configurable between (i) a collapsed configuration in which the second panel substantially overlaps with the first panel to define a first radiation blocking footprint, and (ii) an expanded configuration in which less of the second panel overlaps with the first panel to define a second radiation blocking footprint that is greater than the first radiation blocking footprint.

The invention discloses a bimetallic plasmon nano gap cavity structure for enhancing up-conversion luminescence and a preparation method and application thereof, and belongs to the technical field of nano photonics, plasmon and luminescent materials. In order to solve the problems that the local electric field enhancement of a single metal particle is weak, the LSPR peak position tuning is narrow, a complex metal array is difficult to prepare, and the microcosmic essence is difficult to reveal by an averaging effect brought by macroscopic ensemble research, a metal-insulator-metal sandwich structure is constructed and comprises a substrate, a silver micron sheet, up-conversion nanoparticles and a gold nano bipyramid from bottom to top; by flexibly tuning spectral resonance, excitation absorption and radiation attenuation dual-mode enhancement can be selectively realized for a specific light-emitting channel. The structure can be prepared through a wet chemical method and a self-assembly process, has the advantages of being simple and convenient in preparation method, high in repeatability, good in structural consistency and the like, can be used for researching a horizontal mechanism of a single nanocavity, and has application potential in the fields of biological imaging, optical anti-counterfeiting, micro-nano photonic devices and the like.

This invention proposes a radiation source localization method based on spatial analysis and radio wave propagation models, comprising: generating a unified multidimensional digital map for localization; establishing an antenna database; and performing data modeling for both the local and external radiation sources; mapping the specific deployment locations of the local and external radiation sources; extracting the terrain elevation and slope values ​​of each point; determining the relative elevation of each point to the location of the local radiation source; and whether there are any obstructions to the transmission of the radiation waves from the local radiation source to each point; determining whether an antenna device for the local radiation source can be erected at each location point, and whether the erected antenna device is concealed; calculating the shortest road distance between the expected location point for setting up the local radiation source and the starting point; calculating the radiation attenuation value from the location point of the local radiation source to the external radiation source based on different radio wave propagation models; calculating the suppression power of the local radiation source; and calculating the optimal location point for the local radiation source.

The invention discloses a polycrystalline organic eutectic material as well as a preparation method and application thereof, and belongs to the technical field of organic luminescent materials. According to the invention, a polycrystalline organic eutectic crystal 1-BrTC composed of an electron acceptor TCNB and an electron donor 1-BrDBT is synthesized. And carrying out self-assembly in different crystallization environments to obtain two polycrystalline crystals with obviously different emission colors, which are respectively named as g-eutectic and y-eutectic. Experimental results show that spin-orbit coupling is enhanced through multiple halogen bond effects in the g-eutectic, intersystem crossing and anti-intersystem crossing processes are remarkably accelerated, and thermal activation delayed fluorescence emission is enhanced. Besides thermally activated delayed fluorescence, singlet radiation attenuation and triplet non-radiative transition are inhibited by stronger hydrogen-bond interaction in the y eutectic, and room-temperature phosphorescence emission is realized. A new thought is provided for effective utilization of triplet excitons in the polycrystalline organic eutectic, and reasonable design of a novel luminescent material is facilitated.

The invention belongs to the technical field of solar thermal power generation, and particularly relates to a solar radiation attenuation calculation method and system based on aerosol type recognition, and the method comprises the steps: recognizing the aerosol type through AOD and AROD; calculating a spectral attenuation coefficient by using visibility data and an MIE theory; combining the transmission distance to obtain the spectral optical thickness; and finally, the attenuation efficiency is calculated by adopting a Planck spectral band average model. According to the method, the defect that a traditional empirical formula does not consider the difference of the spectral characteristics of the aerosol is overcome, the calculation precision under the dust type aerosol and low-visibility conditions is remarkably improved, the method is particularly suitable for energy loss evaluation of a large mirror field, and a reliable tool is provided for precise design and efficient operation of a photo-thermal power station.