161results about "Testing metals" patented technology

The invention discloses a test method for exploring the inhibition effect of a coating on GIL metal particles, and relates to the technical field of high-voltage transmission lines and insulation, the test is carried out in a GIL test platform, and the test method comprises the following steps: S1, selecting a coating material; s2, determining a film covering position; s3, selecting proper particles; s4, determining a particle placement position; s5, carrying out a pressurization test; and S6, observing the motion state of the particles under high voltage, recording the take-off voltage, the stop voltage and the distribution range of the particles, and analyzing the effect of the film on inhibiting the take-off of the particles. According to the test method for exploring the inhibition effect of the covering film on the GIL metal particles, the inhibition effect of the covering film on the metal particles in different shapes is observed and compared through tests, and a basis is provided for practical application of the covering film.

The utility model discloses a metal material constant load testing device suitable for a hydrogen environment, which comprises a high-pressure gas storage bin, the high-pressure gas storage bin is hermetically connected with an upper bin cover and a lower bin cover, the upper bin cover is provided with a gas inlet pipeline, the lower bin cover is provided with a gas outlet pipeline, the high-pressure gas storage bin is filled with hydrogen, the upper bin cover is provided with an upper loading rod, and the lower bin cover is provided with a lower loading rod. The upper end of an upper loading rod is connected with a loading head, the lower end of the loading rod extends into the high-pressure gas storage bin, a load sensor is installed on the upper loading rod, a lower loading rod is arranged on the lower bin cover, the upper end of the lower loading rod extends into the high-pressure gas storage bin, the lower end of the lower loading rod is connected with a base, the lower end of the upper loading rod is provided with an upper connector, and the upper connector is connected with a lower connector. A lower connector is arranged at the upper end of the lower loading rod, a constant-load sample is connected between the upper connector and the lower connector, an extensometer is mounted on the constant-load sample, and a temperature sensor and a pressure sensor are mounted in the high-pressure gas storage bin. According to the utility model, a high-pressure hydrogen test environment can be effectively provided, and the performance test of a metal material under a constant load is realized.

The present application relates to a kind of GH4706 alloy long time heat exposure organizational performance evaluation method, belong to high-temperature alloy performance evaluation technical field, solve the problem of not comprehensive of the performance evaluation of alloy by existing method.The method includes selecting alloy forge piece to carry out long term heat exposure test, obtains its organizational performance data and / or organizational parameter under different temperature and different heat exposure time, forms measured data set;Establish the relationship p=T(lgt+C) / 1000 between time-temperature uniform parameter and heat exposure time and heat exposure temperature, formula is substituted into by experimental data and different C value, calculate p;Through linear fitting, establish the preliminary fitting model between p and organizational performance data and / or organizational parameter;Determine the best C value;Establish the final fitting model between p and organizational performance data and / or organizational parameter;The equivalence of model is verified using p value, and performance is evaluated using final fitting model.The method of the present application is comprehensive to the performance evaluation of alloy.

A system, device, method, and program for acquiring feature data for material composition information based on artificial intelligence are disclosed. The system may include a memory configured to store a first artificial intelligence (AI) model configured to output first feature data for composition information of a material and a second AI model configured to output second feature data for structure information of the material; and a processor configured to learn the first AI model and the second AI model. The processor may be configured to learn the first AI model based on the second feature data for the structure information of the material output by the second AI model, and / or to learn the second AI model based on the first feature data for the composition information of the material output by the first AI model.

The method for generating a steel sheet material prediction model according to the present application is a method for generating a steel sheet material prediction model in a steel sheet cooling device, the steel sheet cooling device including a water cooling device that cools a steel sheet by spraying cooling water on the heated steel sheet, and a temperature measuring device that measures the surface temperature of the steel sheet during cooling, wherein the method for generating a steel sheet material prediction model includes the step of generating a steel sheet material prediction model after the steel sheet passes through the cooling device by machine learning using a plurality of learning data sets that include, as input performance data, surface temperature information data sets including measured data of the surface temperature at a reference point set in advance on the steel sheet and measured data of the surface temperature at a reference point set based on the reference point, and, as output performance data, material information of the steel sheet after passing through the cooling device at a position corresponding to the reference point on the steel sheet corresponding to the input performance data.

This invention relates to the field of enameled aluminum wire testing technology and discloses a device for testing the elongation rate of the coating after aging of enameled aluminum wire. The device includes a base and a frame fixedly mounted on the top surface of the base. A test plate is slidably mounted on the inner wall of the frame. Tooling fixtures are provided on both the inner top surface of the frame and the top surface of the test plate. A drive structure for driving the test plate is provided on the frame. Two mounting seats are symmetrically fixedly mounted on the inner top surface of the frame. This invention achieves precise adjustment of the mounting plate height through a threaded transmission structure of a threaded sleeve and an adjusting screw. Combined with the slot limiting during the movement of the rotating sleeve, it ensures that the mounting plate always corresponds to the center position of the tooling fixture during feeding. Simultaneously, the gravity traction of the counterweight and the magnetic drive of the centering component automatically center and align the enameled aluminum wire sample, avoiding premature core wire breakage due to clamping misalignment or clamping distance deviation, reducing test data errors, and accurately reflecting the actual elongation rate of the coating after aging.

A system and method for identifying working medium solidification of a liquid metal heat exchanger comprises a monitoring system, the monitoring system is installed on the liquid metal heat exchanger, temperature and pressure difference information of a working medium inlet and a working medium outlet of the liquid metal heat exchanger is obtained through the monitoring system, and therefore the working medium solidification condition of the liquid metal heat exchanger is confirmed. According to the method, the physical influence of the solidification phenomenon on the heat exchange process in the heat exchanger is combined, multi-area working medium parameters are measured, and judgment logic combining moving average, trend judgment, trend variation analysis and mutation detection is adopted, so that solidification occurrence identification based on multi-physical-parameter dynamic coupling is achieved. And meanwhile, the sudden change detection is adopted, so that the embodiment can respond to the serious rapid solidification phenomenon more rapidly, and the operation safety of the heat exchanger is further improved. According to the identification method, the operation state of the heat exchanger can be monitored in real time, the solidification phenomenon can be captured earlier, and the sensitivity and stability of early warning are both considered.

The utility model discloses a kind of plate shape detection devices, it is related to plate shape detection technical field.The device includes: base roll and flexible pressure-sensitive lining;The flexible pressure-sensitive lining is attached to the outer surface of the base roll, for real-time acquisition foil pressure distribution data;It can be convenient to collect the pressure data of different position regions of the foil needle to be detected to plate shape detection device.The scheme of the utility model, foil can be quickly and accurately detected to plate shape, provide help for ensuring the quality and performance of foil.

The application provides a water plugging device and method for realizing visual analysis under different flow rate conditions, which comprises a plastic pipe frame, a plastic cylinder sleeve supported on the top of the plastic pipe frame through a steel pipe elbow and a steel cylinder guard frame, the plastic cylinder sleeve is connected with an air pressure tank through a rubber conduit hole and a rubber pipe, the air pressure tank is provided with a grouting opening and is used for storing special magnetic slurry, the plastic cylinder sleeve is connected with a power supply through a valve, a direct current intelligent electromagnetic flowmeter and a rubber pipe, one end of the plastic cylinder sleeve is connected with a water tank through a self-made steel frame mold and a water pipe, the other end of the plastic cylinder sleeve is provided with a magnetic self-aggregation magnetic bar, and the magnetic self-aggregation magnetic bar is connected with a pressure test pump through a rubber pipe. The water plugging device can be used for simulating the water plugging example under the water gushing condition of a real karst area tunnel, can effectively control the water gushing disaster, and avoids serious economic loss and heavy casualties.

A method for assessing a structure arranged in an electrolyte may include connecting an electric source between the structure and an earth, and imposing, on the structure, a primary current with at least three frequencies including a first frequency of a duration and an amplitude, a second frequency of a duration and an amplitude, and a third frequency of a duration and an amplitude, a series of currents with the first and second frequency being separated by a time gap. Fields of electric fields may be measured with an instrument having first, second, and third sensors and a positioning system. Each sensor May be configured to measure a field of an electromagnetic field along the structure for each of the frequencies. A primary field resulting from an electric current within the structure based on the measured field may be computed.

[Object] To accurately evaluate delayed fracture characteristics under an environment which is a low-temperature high-humidity and high-chloride environment. [Solution] A method for evaluating a delayed fracture characteristic of a metal material that performs a step including a step (A) and a step (B) below once or a plurality of times to evaluate the delayed fracture characteristic of the metal material having been processed. Step (A): a step that brings an aqueous solution which includes a chloride ion into contact with a surface of the metal material to cause chloride of 1000 to 100000 mg / m2 in chloride amount to deposit to the surface. Step (B): a step in which the metal material to which the chloride has deposited in the step (A) is left stationary in an air atmosphere at a temperature from -50 to 10°C and at a relative humidity higher than or equal to a deliquescence humidity of the chloride.

The invention relates to the technical field of an austenitic stainless steel sensitization process, in particular to an in-situ dynamic observation method for the austenitic stainless steel sensitization process. Aiming at the problem that dynamic precipitation of carbides on an original grain boundary cannot be clearly and continuously captured by the existing observation means, the method is realized by the following steps of: firstly, carrying out electrolytic polishing on a sample to obtain an observation surface without a deformation layer, and ensuring that only the original austenite grain boundary is shown at high temperature; secondly, executing a thermal cycle program including rapid solid solution and controllable cooling to a sensitization temperature in the HT-CLSM, and locking a precipitation process in a target isothermal stage; finally, automatic timing image acquisition is performed on the fixed field of view during an isothermal period. The method realizes clear, dynamic and visual observation of the whole sensitization process, especially initial nucleation, reveals carbide precipitation kinetics, provides an effective tool for research of a sensitization mechanism and material evaluation, and is suitable for austenitic stainless steel.

The invention discloses an intelligent positioning device for non-destructive detection of precious metal. The intelligent positioning device comprises a detection shell; the base is installed at the bottom of the detection machine shell in a sliding mode; the rotary disc assembly is mounted on the base, and the rotary disc assembly comprises a first rotary disc and a second rotary disc which are arranged in parallel up and down and can rotate independently; the two first telescopic rods are evenly arranged on the first rotary disc and the second rotary disc in the circumferential direction, and the telescopic direction of the first telescopic rods faces the radial direction of the first rotary disc and the radial direction of the second rotary disc; the first rotating seat is fixedly mounted at the extending end of the first telescopic rod, and a second telescopic rod is rotationally arranged on the first rotating seat; the second rotating seat is fixedly mounted at the extending end of the second telescopic rod; and the clamp assembly is rotationally mounted on the second rotating seat.

The invention provides a method for measuring the minimum out-of-focus distance of a turbine blade with femtosecond laser critical damage, and relates to the technical field of femtosecond laser processing, and the method comprises the following steps: manufacturing a plurality of groups of different types of samples, and configuring a plurality of samples in each group of the same type; dividing each group of samples of different types into a group of distance test units; the femtosecond laser processing technology is utilized, based on the safe defocusing distance, the defocusing distance in each time of processing is gradually reduced until the defocusing distance in the last time of processing is zero, and femtosecond laser processing of the multiple sets of distance testing units under different defocusing distances is completed; according to the types of the samples, performing performance detection on the different types of samples subjected to femtosecond laser processing; and determining the minimum defocusing distance of the femtosecond laser damage sample according to a performance detection result. According to the method provided by the invention, filling protection in a blade cavity is unnecessary in the process of repairing the air film hole of the turbine blade of the aero-engine, so that the processing efficiency is improved, and the product quality is ensured.

The utility model relates to the field of soluble alloy dissolution rate detection, in particular to a soluble alloy dissolution rate detection device which comprises a control base capable of adjusting the temperature and the stirring speed of a water bath kettle, a stainless steel water bath kettle arranged on the control base, a supporting rod connected to the control base, and a cross clamp connected to the supporting rod. The cross clamp is connected with a thermocouple fixing support, a thermocouple is inserted into a hole of the thermocouple fixing support, and the thermocouple is connected with the control base through a signal line; a magnetic stirrer is arranged in the water bath kettle, a cover with a hole is arranged on the water bath kettle, a thermocouple is inserted into the water bath kettle through the hole of the cover, a lantern ring chain penetrates through the hole of the other cover, the lower end part of each lantern ring chain is connected with a net bag, and a positioning bolt penetrates through the part, above the cover, of each lantern ring chain; the device can be used for simultaneously detecting the dissolution rates of multiple groups of alloys so as to improve the detection efficiency, and also has the function of simulating the flowing state of a dissolution solution of a material in a working environment.

This invention provides a method and apparatus for accurately determining the solubility of rare earth oxides in high-temperature molten salt. It relates to the field of rare earth oxide solubility detection technology, and overcomes the measurement errors caused by severe volatilization of molten salt under high-temperature conditions and the presence of undissolved rare earth oxide or rare earth fluoride particles in the obtained samples, which are present in existing technologies. Furthermore, by using rare earth fluorides instead of rare earth oxides, the amount of rare earth oxides dissolved in the rare earth fluoride-alkali metal fluoride mixed molten salt can be accurately measured, avoiding indirect analysis errors and greatly improving the accuracy of rare earth oxide solubility determination results in high-temperature molten salt.

The invention discloses an enrichment and separation process method for thorium in feldspar-based minerals, and relates to the technical field of recovery of radioactive element thorium. The enrichment and separation process method comprises the following steps: S1, pre-crushing: crushing feldspar-based raw ores to-30-+ 150 meshes by using crushing equipment; s2, multi-section collaborative flotation enrichment is conducted, wherein at least three sections of flotation are conducted on the feldspar-based raw materials with the size ranging from-30 meshes to + 150 meshes; s3, wet grinding and crushing, wherein the thorium-rich concentrate is subjected to wet grinding, and the particle size is controlled to be-200 meshes; s4, stepped acid leaching is conducted, specifically, sulfuric acid with the concentration being 0.5-0.8 mol / L is used for conducting multi-tank series connection and staged acid leaching treatment on the ground ore pulp; s5, acid cake washing; s6, circulating enrichment and acid recovery; according to the method, flotation is conducted on feldspar minerals containing fine crystal structures such as iron sulfide and silicon dioxide under the conditions of normal temperature and normal pressure, so that the element thorium and iron-containing impurities are enriched, then acid leaching treatment is conducted on enriched products, thorium is dissolved and leached out under the condition that main components of the minerals are not damaged, and separation and purification of the minerals are achieved.

The invention provides a metallographic inspection-based die steel heat treatment process optimization method and system, and relates to the technical field of heat treatment process optimizing.The method comprises the following steps: acquiring a digital metallographic image of a die steel heat treatment sample, and constructing a first quantitative characterization system; defining a deviation structure tensor to construct a lightweight deconstructor based on deconstruction of a deviation mode; carrying out process characterization deviation measurement and minimum mode unit deconstruction on the first quantitative characterization system; inputting the process deviation analysis information into a process optimization module, and executing process characterization to a forward generation decision and a reverse generation verification judgment of optimized process parameters; and the heat treatment optimization process is sent to the PLC control end to execute heat treatment control. The technical problem that in the prior art, die steel heat treatment process deviation is difficult to effectively control controllability can be solved, metallographic structure dynamic monitoring and real-time adjustment in the heat treatment process are achieved, and the technical effect of accurately controlling the process deviation is achieved.

In alternative embodiments, provided are synthetic, or non-natural, protein heterodimers or homodimers whose protein / protein binding interactions are controlled through metal or small molecule binding, and methods of making and using them. In alternative embodiments, provided are metal-controlled or small molecule-controlled heterodimers or homodimers, wherein each dimer is fused or joined to half or a portion of a detectable entity, and the when the two dimers are joined or come in contact with each other because of each dimer's binding to a metal, the detectable entity's halves, now also joined or having come in contact with each other, only now can directly or indirectly generate or initiate a detectable signal. In alternative embodiments, provided are biosensors or microfluidic devices comprising synthetic, or non-natural, protein heterodimers or homodimers as provided herein.

The invention discloses a steel structural member coupling loading test method considering a corrosion fatigue time similarity ratio. The method comprises the following steps: (a) determining a natural corrosion annual average thickness loss rate Dn of a steel structural member service site; (b) determining an accelerated corrosion test environment based on the natural corrosion environment type; (c) determining a daily average thickness loss rate Dt of an accelerated corrosion test, and calculating a corrosion time similarity ratio ac; (d) determining a fatigue load action frequency design value Nd according to the service condition; (e) determining a lower limit value NT of fatigue test loading times, and calculating a fatigue test loading frequency f required for reaching a fatigue time similarity ratio af; (f) establishing a corrosion fatigue coupling damage evolution model, and establishing a relationship between a corrosion fatigue coupling loading test life Nf and a corrosion fatigue test similarity ratio coefficient ak; and (g) calculating the deviation between the test life Nf under the test working condition and the life N1 when the consistency of the corrosion fatigue time similarity ratio is considered, and evaluating the corrosion fatigue performance of the structural member under the actual environment corrosion and load working condition.

A pretreatment system and a pretreatment method for inspecting metal components in a sample are disclosed. The pretreatment system includes a robot including a number of arms that are relatively rotatable with respect to each other, and the tips of the number of arms are movable within an operating radius; a gripper device attached to the tip of the robot, the gripper device including a first gripper unit that grips or releases a dosing head on one side and a second gripper unit that grips or releases a tube on the other side; a dosing head mounting table on which a plurality of dosing heads can be placed; a tube mounting table on which a plurality of tubes with tube caps coupled to tube bodies can be placed; a sample input unit lifting device on which the dosing head is placed and which is movable up and down, and including a tube mounting cup disposed under the sample input unit lifting device and on which the tube is placed, the sample input device being configured to input the sample in the dosing head into the tube placed in the tube mounting cup; a cap opening and closing device configured to separate the tube cap from the tube body or couple the tube cap to the tube body; an acid injection device configured to inject acid into the tube into which the sample has been input by the sample input device or inject distilled water into the tube containing the acid in which the sample has been dissolved; a heat shaker configured to apply heat to and shake the tube containing the acid mixed with the sample to dissolve the sample in the acid; a vision device configured to acquire an image of a set portion of the tube containing the sample solution in which the sample has been dissolved in the acid; and a pipetting device configured to transfer a part of the solution in one tube to another tube.

This invention relates to the field of solid-state hydrogen storage material testing technology, and discloses a multi-parameter comprehensive testing system for magnesium-based solid-state hydrogen storage materials. The system includes a sample feature extraction module, an in-situ data injection module, a dynamic test field module, a cross-domain mapping training module, and an instruction parsing and reporting module. The system applies multi-physical field composite excitations such as temperature, pressure, and stress to the material sample and simultaneously acquires multi-dimensional response signals; it generates a real-time environmental perturbation spectrum based on the signal sequence, uses its deviation from the standard model to drive adversarial training, dynamically generates test field control commands and material state evolution commands, and finally outputs a comprehensive test report. This system can realistically simulate multi-field coupled environments under complex working conditions, achieving adaptive optimization of test conditions and high-precision dynamic analysis of material performance evolution.

The application relates to the technical field of liquid hydrogen cylinder detection, in particular to a fire post-liquid hydrogen cylinder detection management method and system, wherein the method comprises the following steps: a preliminary judgment step, a fire-affected part detection step, a toughness prediction step, an adiabatic evaluation step, a safety determination step and a traceability archiving step; wherein the system comprises a processor and a memory in communication connection with the processor. The application realizes independent monitoring in three dimensions and dangerous determination based on a logical or relationship, so that the detection result can comprehensively reflect the real safety state of the cylinder in a super-low-temperature service environment.

The hot upsetting detection system comprises a platform, a fence, a cutting device, a sample holder, a furnace body, an upsetting main machine and a mechanical arm, the fence is arranged on the platform, and an operation space is defined on the platform; the cutting device, the sample holder, the furnace body and the upsetting main machine are all mounted in the operation space and are sequentially arranged at intervals in the circumferential direction of the operation space, the cutting device is used for cutting and processing a sample, the sample holder is used for storing the sample, the furnace body is used for heating the sample, and the upsetting main machine is used for performing an upsetting test on the sample; the mechanical arm is installed in the operation space, located in the middle of the platform and located in the space defined by the cutting device, the sample holder, the furnace body and the upsetting main machine, and the mechanical arm can swing in the circumferential direction of the operation space. The technical problems that in the prior art, hot upsetting is large in harm to the human body, safety is poor, and detection accuracy and precision are low are solved.

The non-contact determination of the mechanical and / or electromagnetic material properties Qi of a magnetizable metallic flat product 2 is carried out by means of a device 1 comprising a coil arrangement 4, an adjustable current source 10, and a control and measuring unit 12. The coil arrangement 4 has at least one first coil unit 41 with an excitation coil 51, a magnetizable yoke 6, and measuring coils 81, 82. The yoke 6, which is enclosed by the excitation coil 51, is U-shaped. In cyclic measurement runs Mk, the excitation coil 51 is sequentially supplied with alternating current of one or more fundamental frequencies fj between 10 Hz and 1000 Hz, whereby the control and measuring unit 12 detects a response signal rj corresponding to the respective fundamental frequency fj in the measuring coils 81, 82.

The invention relates to a GH4706 alloy long-time thermal exposure structure performance evaluation method, belongs to the technical field of high-temperature alloy performance evaluation, and solves the problem that an existing method is incomprehensive in alloy performance evaluation. The method comprises the following steps: selecting an alloy forge piece to carry out a long-term thermal exposure test, obtaining structure property data and / or structure parameters of the alloy forge piece at different temperatures and different thermal exposure time, and forming an actual measurement data set; determining a relationship p = T (lgt + C) / 1000 between the time-temperature unified parameter and the thermal exposure time and thermal exposure temperature, substituting experimental data and different C values into a formula, and calculating p; establishing a preliminary fitting model between the p and the structure performance data and / or the structure parameters through linear fitting; determining an optimal C value; establishing a final fitting model between the p and the structure performance data and / or the structure parameters; and verifying the equivalence of the model by using a p value, and evaluating the performance by using a final fitting model. The method can comprehensively evaluate the performance of the alloy.

The application relates to the technical field of material performance detection, in particular to a performance evaluation method and device for alloy steel, an electronic device and a medium. The performance evaluation method for alloy steel needs to acquire alloy steel performance test requirements and steelmaking raw materials of manganese-nickel-molybdenum alloy steel; based on the alloy steel performance test requirements, a simulation piece design benchmark matched with the manganese-nickel-molybdenum alloy steel is determined; alloy smelting is carried out on the steelmaking raw materials according to the simulation piece design benchmark, and a plurality of alloy steel simulation pieces are obtained; performance test is carried out based on the plurality of alloy steel simulation pieces, simulation piece test data are obtained; and performance evaluation data corresponding to the manganese-nickel-molybdenum alloy steel are determined according to the carbon content of each alloy steel simulation piece and the simulation piece test data. In this way, the scientificity, controllability and timeliness requirements for performance evaluation of the manganese-nickel-molybdenum alloy steel can be met.

The invention discloses testing equipment and a testing method for casting burnt-on sand and coating adhesion, and mainly relates to the technical field of casting. Comprising an equipment part which is mainly composed of a sealing shell with an air inlet pipe, an upper cover, an inner sleeve used for containing molten metal and a sand core and an outer sleeve used for fixing the inner sleeve. According to the method part, the solidification modulus and the metal liquid pressure of a target casting risk area are calculated and are equivalently converted into the size of a standard cylinder test structure and the gas pressure needing to be applied; a test sand core and a corresponding inner sleeve which are consistent with production conditions are prepared according to the production conditions, molten metal is poured after assembly, solidification is completed under controllable air pressure, and finally the adhesion condition of burnt-on sand and paint on the inner surface of a sample is evaluated. The device has the beneficial effects that the solidification environment of the sand core can be simulated, including metal liquid pressure and solidification time, so that the influence of different types of coatings and coating thicknesses on burnt-on sand and coating adhesion can be tested.

The invention discloses a corrosion and heat transfer dual-drive CCUS station heat exchanger tube bundle three-stage material selection method, and belongs to the technical field of CCUS station materials. According to the method, aiming at the problem that multi-factor coupling corrosion and heat transfer performance are not comprehensively considered, precise material selection is achieved through three-stage optimization, and specifically, first-stage material primary selection is conducted through CO2 pressure and dryness and humidity screening; secondly, determining a corrosion index through a corrosion test and a weightlessness test, and screening a secondary corrosion-resistant material; secondly, the heat exchange performance of the material is simulated and evaluated in combination with software, heat transfer coefficients are corrected in combination with multiple indexes such as energy consumption and cost, heat transfer indexes are determined, and the material with excellent three-level corrosion resistance, heat resistance and heat transfer performance is selected; finally, comprehensive indexes are determined by integrating the corrosion indexes and the heat transfer indexes, and material selection is guided. The failure frequency of the heat exchanger tube bundle can be effectively reduced, and reliable material support is provided for safe and stable operation of a CCUS system.

A gamma-ray image acquisition device (1) acquires the direction and energy of a target scattered gamma-ray generated by Compton scattering of an incident gamma-ray and acquires the direction and energy of a recoil electron. These pieces of information are used to acquire the incident direction and energy of the incident gamma-ray. The gamma-ray image acquisition device (1) acquires a two-dimensional image by imaging spectroscopy based on the incident directions and energies of a plurality of incident gamma-rays, the two-dimensional image being an image in which each pixel corresponding to each incident direction includes energy distribution information. In the two-dimensional image, the area and the solid angle of an imaging range are proportional to each other. This enables acquiring the distribution of gamma-ray intensities without depending on distance and thereby acquiring an image that indicates more useful information than conventional images.