Method for water molecule adsorption and desorption experiment in lunar permanent shadow region

Abstract

The application relates to a lunar permanent shadow area water molecule adsorption and desorption experiment method and belongs to the field of space environment simulation. The method solves the problem that the coincidence degree of a preparation method of an existing simulation object and real lunar soil water ice is low, and the difference between physical property indexes and theoretical values of real lunar soil water ice is large. The method comprises the following steps: placing an experimental sample array into a deep low-temperature vacuum environment simulation cabin; constructing a deep low-temperature vacuum environment, and injecting micro-quantitative water molecules into the array to adjust the water molecule atmosphere; after the environment conditions reach the experimental requirements, starting to carry out an adsorption experiment, and after T1 hours, encapsulating and transferring the adsorption experimental sample; after encapsulation is completed, extracting residual water molecules in the environment simulation cabin, and re-creating a clean vacuum environment; simultaneously adjusting the sample temperature in the desorption sample area and the migration sample area to meet the experimental conditions; after T2 hours of desorption experiment is continuously carried out, the desorption experimental sample is encapsulated and transferred, and after T3 hours of migration experiment is continuously carried out, the migration experimental sample is encapsulated and transferred. The method is applied to the field of lunar exploration engineering.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of space environment simulation, in particular to a method for water molecule adsorption and desorption experiment in the lunar permanent shadow area. BACKGROUND

[0002] Since the 21st century, human beings have proved by remote sensing detection means that there is ice natural water in the lunar polar permanent shadow area, which exists in the form of ice-soil cohesive body in the lunar soil profile. Under the condition of super-high vacuum on the moon, why is there ice natural water? The scientific mechanism believes that it is due to the following three conditions: first, the extremely low temperature and lightless environment in the permanent shadow area, which provides the cold trap sublimation condition for water material; second, there is a global thin water molecule injection flow; third, there are physical actions such as cold trap capture, absorption deposition and cold end migration between water molecules and lunar soil particles.

[0003] Planetary science and remote sensing detection evidence shows that the minimum temperature in the lunar polar permanent shadow area is about 10-30K, and the lunar atmospheric pressure is about 10 -10 Pa, which is far beyond the research limit of the earth's permafrost and conventional water material science. Under the coupling condition of low temperature and vacuum in the lunar permanent shadow area, the complex physical actions such as cold trap capture, absorption deposition and cold end migration may occur between the global free diffusion of thin water molecules and lunar soil particles, and then the stable ice-soil cohesive body is formed. Due to the limitation of deep space exploration capability, human beings have not obtained the field sampling and detailed evidence of lunar soil water ice material, and the formation and evolution mechanism of ice-soil material in the lunar permanent shadow area and the influence factors of environmental-material factors on the comprehensive properties of ice-soil cohesive body are not clear.

[0004] Facing the major needs of scientific investigation, resource exploitation and utilization of ice-soil material in the lunar permanent shadow area, it is urgent to solve the basic problems such as simulation of lunar soil water ice material, comprehensive property testing and characterization of lunar soil water ice. Looking at the technical status of the world, the lunar soil water ice material high simulation is a world problem. The current technical routes can be summarized into three categories: normal pressure water frozen ice, low temperature ice mixed soil, and normal pressure vapor condensed ice, which can basically meet the envelope simulation and engineering verification of the mechanical harshness of lunar soil water ice. However, the simulation material preparation method and process condition are not consistent with the scientific mechanism of the real formation and evolution mechanism of lunar soil water ice, resulting in a large gap between the thermal-electric-optical-desorption properties of lunar soil water ice simulation and the theoretical prediction value of real lunar soil water ice. SUMMARY

[0005] The present application is directed to the problem that the existing simulation preparation method and process condition are not in line with the scientific mechanism of the real formation and evolution mechanism of lunar soil water ice, resulting in a large gap between the thermal-electric-optical-desorption properties of lunar soil water ice simulation and the theoretical predicted value of real lunar soil water ice, a lunar permanent shadow area water molecule adsorption and desorption experiment method is proposed, the method comprises:

[0006] Place the experimental sample array into a deep low temperature vacuum environment simulation cabin;

[0007] Construct a deep low temperature vacuum environment, and inject micro-quantitative water molecules into the experimental sample array;

[0008] When the environmental conditions meet the experimental requirements, start the adsorption experiment, and continue for T1 time;

[0009] After the adsorption experiment is completed, the sample is packaged and transferred;

[0010] After packaging is completed, residual water molecules are extracted from the environment simulation cabin; at the same time, the sample temperature in the desorption sample area and the migration sample area is adjusted to meet the experimental conditions;

[0011] Carry out a desorption experiment for T2 time, and after the desorption experiment is completed, the desorption experiment sample is packaged and transferred;

[0012] Carry out a migration experiment for T3 time, and after the migration experiment is completed, the sample is packaged and transferred.

[0013] Further, an optimal way is also proposed, the experimental sample array is 16.

[0014] Further, an optimal way is also proposed, the sample array is divided into an adsorption area and a desorption area by a sample spacing area, and the samples in each area are uniformly arranged on a sample table; the samples in the adsorption area are used for adsorbing the sprayed water molecules, and the samples in the desorption area are used for desorption experiments of water molecules at different temperatures.

[0015] Further, an optimal way is also proposed, the deep low temperature vacuum environment is constructed by a vacuum pump and a refrigerator cold head.

[0016] Further, an optimal way is also proposed, the concentration of the micro-quantitative water molecules injected into the experimental sample array is 1.3x10 -9 g / cm 3 ~ 4.8x10 -6 g / cm 3 .

[0017] Further, an optimal way is also proposed, when the environmental conditions meet the experimental requirements, the adsorption experiment is started, and continues for T1 time, which includes:

[0018] The mass of water molecules adsorbed by the sample is characterized by a modified Hertz-Knudsen equation:

[0019]

[0020] Wherein, A is the surface area of the sample, unit is m 2 ; p is the pressure of water molecules, unit is Pa; T is the temperature of water molecules, unit is K; M is the molar mass of water molecules, unit is kg / mol; R is the gas constant, unit is J / (mol·K);

[0021] In the experimental cabin, when the water molecule injection of the water molecule sublimation generator and the adsorption of the sample reach an equilibrium state:

[0022]

[0023] The pressure of water molecules in the cabin is:

[0024]

[0025] Wherein, P sat is the saturated vapor pressure, unit is Pa; S v is the specific surface area, m 2 / g; a is the sublimation coefficient of water ice.

[0026] Further, an optimal mode is further provided, and the desorption experiment of T2 time includes: setting a sample initial temperature, a deep low-temperature vacuum environment simulation cabin water molecule concentration, a mineral component, a density and a particle size.

[0027] Further, an optimal mode is further provided, and the migration experiment of T3 time includes: setting a sample initial temperature gradient, a deep low-temperature vacuum environment simulation cabin mineral component, a density and a particle size.

[0028] Based on the same inventive concept, the application further provides a computer device, including a memory and a processor, the memory stores a computer program, when the processor runs the computer program stored in the memory, the processor executes the lunar permanent shadow area water molecule adsorption and desorption experiment method according to any one of the above.

[0029] Based on the same inventive concept, the application further provides a computer readable storage medium, the computer readable storage medium stores a computer program, when the computer program is run by a processor, the steps of the lunar permanent shadow area water molecule adsorption and desorption experiment method according to any one of the above are executed.

[0030] The application has the advantages that:

[0031] The moon permanent shadow area water molecule adsorption and desorption experimental method can simulate the cold trap adsorption and deposition process of water molecules on the lunar soil surface under the deep low-temperature vacuum condition in the PSR, and study the influence law of multiple factors on the adsorption rate, ice crystal type and ice soil cementation state.

[0032] The moon permanent shadow area water molecule adsorption and desorption experimental method can simulate the desorption process of water ice material in the lunar soil profile under the action of heat under the deep low-temperature vacuum condition in the PSR, and study the influence law of multiple factors on the sublimation rate and ice soil cementation state change process.

[0033] The moon permanent shadow area water molecule adsorption and desorption experimental method can simulate the migration and diffusion process of water ice material in the longitudinal profile in the gradient temperature field under the deep low-temperature vacuum condition in the PSR, and study the influence law of multiple factors on the migration direction and migration rate.

[0034] The moon permanent shadow area water molecule adsorption and desorption experimental method places the experimental sample in the deep low-temperature vacuum environment simulation cabin, and builds a deep low-temperature vacuum environment, which better simulates the special environment of the permanent shadow area on the lunar surface, and enhances the authenticity and reliability of the experimental results. Through micro-quantitative water molecule injection into the experimental sample array, the accurate control of water molecules is realized, so that the experiment is more accurate and controllable. In the actual scene, the injection and adsorption of water molecules will affect the vacuum degree in the cabin, and the accurate control of the water molecule pressure is realized by controlling the temperature in the water molecule field sublimation generator and the surface area of the sample adsorption. The method includes three stages of adsorption experiment, desorption experiment and migration experiment, and can comprehensively investigate the adsorption, desorption and migration behavior of water molecules under different conditions, and provide more experimental data and basis for understanding the real formation and evolution mechanism of water molecules in the permanent shadow area on the moon.

[0035] The moon permanent shadow area water molecule adsorption and desorption experimental method not only can investigate the thermal, electrical, optical and other characteristics of water molecules, but also can study the adsorption and desorption characteristics, so that the experimental results are more comprehensive and more consistent with the physical indexes of the real lunar water ice. The environmental conditions and sample temperature parameters are monitored and adjusted throughout the experiment process, so as to ensure the stability and accuracy of the experimental conditions, and improve the repeatability and comparability of the experiment.

[0036] The moon permanent shadow area water molecule adsorption and desorption experimental method is applied to the field of lunar exploration engineering. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The moon permanent shadow area water molecule adsorption and desorption experimental method flow chart for the embodiment one is described.

[0038] Figure 2The schematic diagram of the adsorption-migration-desorption experiment array for the third embodiment is shown. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.

[0040] Embodiment one, see Figure 1 This embodiment is described. The method for lunar permanent shadow water molecule adsorption and desorption experiment in this embodiment comprises the following steps:

[0041] The experimental sample array is placed in a deep low-temperature vacuum environment simulation cabin;

[0042] A deep low-temperature vacuum environment is constructed, and micro-quantitative water molecules are injected into the experimental sample array;

[0043] After the environmental conditions meet the experimental requirements, the adsorption experiment is started and lasts for T1 time;

[0044] After the adsorption experiment is completed, the sample is packaged and transferred;

[0045] After the packaging is completed, the residual water molecules are extracted from the environment simulation cabin; at the same time, the sample temperature in the desorption sample area and the migration sample area is adjusted to meet the experimental conditions;

[0046] The desorption experiment is performed for T2 time, and after the desorption experiment is completed, the desorption experiment sample is packaged and transferred;

[0047] The migration experiment is performed for T3 time, and after the migration experiment is completed, the sample is packaged and transferred.

[0048] The method proposed in this embodiment places the experimental sample in a deep low-temperature vacuum environment simulation cabin and constructs a deep low-temperature vacuum environment, which better simulates the special environment of the lunar surface permanent shadow area and enhances the authenticity and reliability of the experimental results. By injecting micro-quantitative water molecules into the experimental sample array, the water molecules are accurately controlled, making the experiment more accurate and controllable. In actual scenarios, the injection and adsorption of water molecules will affect the vacuum degree in the cabin, and the temperature inside the water molecule field sublimation generator and the surface area of the sample adsorption are controlled to accurately control the water molecule pressure. The method includes three stages of adsorption experiment, desorption experiment and migration experiment, which can comprehensively investigate the adsorption, desorption and migration behavior of water molecules under different conditions, and provide more experimental data and basis for understanding the real formation and evolution mechanism of water molecules in the lunar permanent shadow area.

[0049] The method proposed in this embodiment can not only investigate the thermal, electrical, optical and other properties of water molecules, but also study their adsorption and desorption characteristics, making the experimental results more comprehensive and more consistent with the physical properties of real lunar regolith water ice. The environmental conditions and sample temperature parameters are monitored and adjusted throughout the experiment to ensure the stability and accuracy of the experimental conditions, improving the repeatability and comparability of the experiment.

[0050] The lunar permanent shadow area water molecule adsorption and desorption experimental method proposed in this embodiment can simulate the cold trap adsorption and deposition process of water molecules on the lunar regolith surface under deep low temperature and vacuum conditions in PSR, and study the influence of multiple factors on adsorption rate, ice crystal type, and ice-soil cementation state.

[0051] The lunar permanent shadow area water molecule adsorption and desorption experimental method proposed in this embodiment can simulate the desorption process of water ice under the action of heat in the lunar regolith profile under deep low temperature and vacuum conditions in PSR, and study the influence of multiple factors on sublimation rate and ice-soil cementation state change process.

[0052] The lunar permanent shadow area water molecule adsorption and desorption experimental method proposed in this embodiment can simulate the migration and diffusion process of water ice in the longitudinal profile in a gradient temperature field under deep low temperature and vacuum conditions in PSR, and study the influence of multiple factors on migration direction and migration rate.

[0053] Embodiment two, this embodiment is a further limitation of the lunar permanent shadow area water molecule adsorption and desorption experimental method described in embodiment one, the experimental sample array is 16.

[0054] Embodiment three, see Figure 2 This embodiment is a further limitation of the lunar permanent shadow area water molecule adsorption and desorption experimental method described in embodiment one, the sample array is divided into adsorption and desorption zones by sample spacing, and the samples in each zone are uniformly arranged on the sample table. The samples in the adsorption zone are responsible for adsorbing the sprayed water molecules, and the samples in the desorption zone are responsible for the desorption experiment of water molecules at different temperatures. Due to cost constraints, the adsorption and desorption zones are located in the same chamber. At the same time, the sample table has a rotating function, which can still ensure the uniformity of the sample area in absorbing water molecules when the initial uniformity of water molecules is not enough.

[0055] Dividing the sample array into adsorption and desorption zones helps to organize and control the experimental process. This division makes the experimental process clearer and more orderly, ensuring the smooth progress of adsorption and desorption experiments.

[0056] By uniformly arranging the samples on the sample table and dividing them into adsorption and desorption zones, adsorption and desorption experiments can be performed simultaneously, thereby improving the efficiency of the experiment. This parallel processing method helps to save time and resources.

[0057] Separating the samples in the adsorption and desorption zones can prevent interference between different regions, thereby improving the accuracy of experimental results. The samples in each region can be tested under relatively independent conditions, ensuring the reliability of experimental data.

[0058] In this embodiment, the deep cryogenic vacuum environment is constructed by a vacuum pump and a cryocooler cold head.

[0059] In this embodiment, the vacuum pump is used to extract air from the simulation cabin to create a vacuum environment. Different types of vacuum pumps (such as rotary vane pumps, scroll pumps, or molecular pumps) can achieve different degrees of vacuum. In this experiment, a vacuum pump is needed to reduce the pressure in the simulation cabin to an extremely low level to simulate a deep cryogenic vacuum environment.

[0060] The cryocooler cold head is used to reduce the temperature in the simulation cabin to achieve a deep cryogenic environment. Typically, the cryocooler cold head uses a refrigerant cycle to remove heat from the cabin, rapidly reducing the cabin temperature to the desired low temperature level. This can simulate an extremely low temperature environment suitable for experiments under low temperature conditions.

[0061] The combination of the vacuum pump and the cryocooler cold head can create a deep cryogenic and vacuum environment simultaneously, providing the necessary conditions for the experiment.

[0062] In this embodiment, the concentration of micro-quantitative water molecules injected into the experimental sample array is 1.3x10 -9 g / cm 3 ~ 4.8x10 -6 g / cm 3 .

[0063] In this embodiment, the concentration range of micro-quantitative water molecules injected into the experimental sample array is set, so that the water molecule concentration in the experiment can be controlled within a precise range, which is beneficial for simulating the actual situation on the lunar surface. This precise control helps to improve the repeatability and comparability of the experiment, ensuring the accuracy of the experimental results.

[0064] The selected water molecule injection concentration range (1.3x10 -9 g / cm 3 ~ 4.8x10 -6 g / cm 3The method takes into account the sparsity of water molecules in the extreme lunar surface environment, which is closer to the actual situation. This helps the experiment to more realistically simulate the adsorption and desorption process of water molecules on the lunar surface, thereby obtaining more reliable experimental results.

[0065] By limiting the concentration range of water molecule injection, the experimenter can better adjust the experimental conditions to meet different research purposes and experimental requirements. Such optimization helps to improve the efficiency and scientificity of the experiment, providing more reliable data support for the study of lunar water ice.

[0066] Embodiment six, this embodiment is a further limitation of the lunar permanent shadow water molecule adsorption and desorption experiment method described in embodiment one. After the environmental conditions meet the experimental requirements, the adsorption experiment is started and lasts for T1 time, which includes:

[0067] The mass of water molecules adsorbed by the sample is characterized by the modified Hertz-Knudsen equation:

[0068]

[0069] Where A is the surface area of the sample, m 2 ; p is the pressure of water molecules, Pa; T is the temperature of water molecules, K; M is the molar mass of water molecules, kg / mol; R is the gas constant, J / (mol·K);

[0070] In the experimental chamber, when the water molecule injection of the water molecule sublimation generator and the adsorption of the sample reach the equilibrium state:

[0071]

[0072] The pressure of water molecules in the chamber is:

[0073]

[0074] Where P sat is the saturated vapor pressure, Pa; S v is the specific surface area, m 2 / g; a is the sublimation coefficient of water ice.

[0075] The modified Hertz-Knudsen equation can more accurately describe and predict the adsorption behavior of water molecules in a low-temperature, low-pressure environment. This equation takes into account key parameters such as sample surface area, water molecule pressure and temperature, and water molecule molar mass, making experimental results more accurate and effectively guiding actual lunar exploration and research work.

[0076] In the experimental chamber, the water molecule injection by the water molecule sublimation generator and the adsorption of the sample reach an equilibrium state, which allows real-time adjustment and control of the water molecule pressure in the chamber. This method can simulate and explore the behavior of water molecules under different environmental conditions, improving the scientificity and practicality of the experiment.

[0077] By controlling the adsorption equilibrium of water molecules and precisely adjusting environmental parameters, the extreme environment of the lunar permanent shadow region can be better simulated. This highly controllable experimental setup allows researchers to gain a deeper understanding of the adsorption and migration mechanisms of water molecules in lunar soil, providing theoretical basis and technical support for future lunar exploration missions.

[0078] Using the modified version of the Hertz-Knudsen equation allows experimenters to adjust the experimental design to accommodate new understandings derived from the experiment, such as adjusting the sample surface area, temperature, or pressure, to optimize experimental conditions and results.

[0079] Embodiment seven, this embodiment is a further limitation of the lunar permanent shadow region water molecule adsorption and desorption experiment method described in embodiment one, the desorption experiment of T2 time includes: setting the initial temperature of the sample, the water molecule concentration in the deep low temperature vacuum environment simulation chamber, the mineral composition, the density and the particle size of the sample.

[0080] By setting the initial temperature of the sample, the water molecule concentration in the deep low temperature vacuum environment simulation chamber, and the mineral composition, density and particle size of the sample, the accuracy of the experimental conditions is ensured. This precise control can make the experimental results more reliable and provide higher reproducibility.

[0081] By adjusting the mineral composition, density and particle size of the sample, the characteristics of the lunar surface material can be simulated, making the experiment closer to the real lunar environment. This helps to study the behavior of water molecules in the permanent shadow region of the lunar surface.

[0082] By setting the initial temperature of the sample and the water molecule concentration, and adjusting the physical and chemical properties of the sample, the desorption behavior of water molecules can be comprehensively investigated. In-depth study of the desorption mechanism is of great significance to understanding the formation and evolution process of water ice on the lunar surface.

[0083] Embodiment eight, this embodiment is a further limitation of the lunar permanent shadow region water molecule adsorption and desorption experiment method described in embodiment one, the migration experiment of T3 time includes: setting the initial temperature gradient of the sample, the mineral composition, the density and the particle size in the deep low temperature vacuum environment simulation chamber.

[0084] Embodiment nine, the computer device provided in the embodiment comprises a memory and a processor, the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the water molecule adsorption and desorption experiment method in the lunar permanent shadow area according to any one of the embodiments one to eight.

[0085] Embodiment ten, the computer readable storage medium provided in the embodiment stores a computer program, and when the processor runs the computer program, the processor executes the steps of the water molecule adsorption and desorption experiment method in the lunar permanent shadow area according to any one of the embodiments one to eight.

[0086] Although the preferred embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present disclosure. Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

[0087] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing apparatus to produce a machine, so that the instructions executed by the computer or other programmable data processing apparatus produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 one flow or multiple flows and / or blocks Figure 1apparatuses that implement the functions specified in the flowchart or flowcharts and / or blocks Figure 1 flowchart or flowcharts and / or blocks Figure 1 flowchart or flowcharts and / or blocks Figure 1 flowchart or flowcharts and / or blocks Figure 1 steps of a function specified in the flowchart or flowcharts and / or blocks.

[0089] Finally, it should be noted that the above examples are merely used to illustrate the technical solutions of the present disclosure, rather than to limit the protection scope thereof. Although the present disclosure has been described in detail with reference to the above examples, it should be understood by those skilled in the art that, after reading the present disclosure, those skilled in the art can make various changes, modifications or equivalent replacements to the specific embodiments of the present disclosure. However, these changes, modifications or equivalent replacements are all within the protection scope of the disclosed patent pending claims.

Claims

1. A method for the adsorption and desorption of water molecules in permanently shadowed regions of the moon, characterized in that, The method includes: The experimental sample array was placed inside a deep cryogenic vacuum environment simulation chamber; A deep cryogenic vacuum environment was constructed, and a micro-quantitative amount of water molecules was injected into the experimental sample array; Once the environmental conditions meet the experimental requirements, the adsorption experiment will begin and continue for a duration of T1. After the adsorption experiment, the sample was encapsulated and transferred. After encapsulation, residual water molecules are extracted from the environmental simulation chamber; at the same time, the sample temperature in the desorption sample area and the migration sample area is adjusted to meet the experimental conditions. Desorption experiments were conducted at time T2. After the desorption experiments were completed, the desorption experimental samples were encapsulated and transferred. A transfer experiment was conducted at time T3. After the transfer experiment, the samples were packaged and transferred. Once the environmental conditions meet the experimental requirements, the adsorption experiment begins and lasts for a time T1, including: The mass of water molecules adsorbed by the sample is characterized by the modified Hertz-Knudsen equation: in, The surface area of ​​the sample, in meters. 2 p is the pressure of a water molecule, measured in Pa; T is the temperature of a water molecule, measured in K. It is the molar mass of a water molecule, expressed in kg / mol. It is the gas constant, with units of J / (mol·K); In the experimental chamber, after the water molecule injection from the water molecule sublimation generator and the adsorption of the sample reach equilibrium: The pressure of water molecules inside the chamber is: in, P sat This is the saturated vapor pressure, expressed in Pa. S v For specific surface area, m 2 / g; a is the sublimation coefficient of water ice.

2. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The experimental sample array consists of 16 samples.

3. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The sample array is divided into an adsorption zone and a desorption zone by sample intervals, with samples in each zone evenly arranged on the sample stage; the samples in the adsorption zone are used to adsorb sprayed water molecules, and the samples in the desorption zone are used for water molecule desorption experiments at different temperatures.

4. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The deep cryogenic vacuum environment is constructed using a vacuum pump and a refrigerator cold head.

5. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The concentration of micro-quantitative water molecules injected into the experimental sample array was 1.3 x 10⁻⁶. -9 g / cm 3 ~4.8x10 -6 g / cm 3 .

6. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The desorption experiment at time T2 includes setting the initial temperature of the sample, the concentration of water molecules, mineral composition, density, and particle size in the deep cryogenic vacuum environment simulation chamber.

7. The experimental method for water molecule adsorption-desorption in a permanently shadowed region of the moon according to claim 1, characterized in that, The migration experiment at time T3 includes: setting the initial temperature gradient of the sample, and simulating the mineral composition, density, and particle size in the deep cryogenic vacuum environment chamber.

8. A computer device, characterized in that: It includes a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes an experimental method for the adsorption and desorption of water molecules in a permanently shadowed region of the moon as described in any one of claims 1-7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of an experimental method for the adsorption and desorption of water molecules in a permanently shadowed region of the moon as described in any one of claims 1-7.

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