10 results about "Electron radiation" patented technology

The utility model relates to a perovskite cell space environment multifunctional protection composite packaging structure comprising a bottom frame, the upper end face of the bottom frame is provided with a containing groove, and a perovskite cell is placed in the containing groove; the composite packaging film comprises an anti-reflection layer, a first packaging film and a second packaging film which are stacked, and the anti-reflection layer is arranged on the upper end face of the perovskite cell; the first packaging assembly is arranged on the upper end face of one side of the bottom frame so as to clamp one side of the composite packaging film; the second packaging assembly is arranged on the upper end face of the other side of the bottom frame so as to clamp the other side of the composite packaging film; and the protective layer comprises an anti-radiation coating and an atomic oxygen protective layer which are sequentially evaporated on the second packaging film, and the anti-radiation coating is coated with the atomic oxygen protective layer. The packaging film provided by the utility model has the advantages of anti-reflection, high and low temperature resistance, electron radiation resistance and atomic oxygen corrosion resistance, and can meet the low-orbit space application of the perovskite laminated cell; and the cost is lower than that of a glass cover plate applied to an existing gallium arsenide solar cell.

The invention provides a PI-based anti-electron radiation composite material and a preparation method thereof, and relates to the technical field of anti-radiation materials.The preparation method comprises the steps that S1, boron carbide powder, a silane coupling agent and an organic solvent are mixed and then subjected to dispersion treatment, and dispersion liquid is obtained; s2, 4, 4-diaminodiphenyl ether and pyromellitic dianhydride are added into the dispersion liquid, then stirring treatment, filtering and defoaming treatment are sequentially conducted, and a composite glue solution is obtained; and S3, coating a mold with the composite glue solution, and carrying out heating treatment to obtain the electron radiation prevention composite material. The composite material prepared by the method disclosed by the invention has relatively low density and relatively good electron radiation resistance.

The invention belongs to the field of photovoltaic packaging, and relates to an organic silicon packaging adhesive film for a space photovoltaic module and a preparation method of the organic silicon packaging adhesive film, the organic silicon packaging adhesive film is prepared by coating on a basement film and thermocuring preforming, the organic silicon packaging adhesive film comprises a composite matrix and a composite radiation-resistant agent, the composite matrix comprises phenyl-containing linear silicone oil, and the composite radiation-resistant agent comprises phenyl-containing linear silicone oil. The phenyl-containing body type silicon resin is in chemical combination connection with the linear silicone oil; the composite radiation-resistant agent comprises titanate modified nano cerium oxide and silane modified nano zirconium oxide which have a synergistic effect; the ultraviolet radiation resistance of the adhesive film obtained by compounding the composite matrix and the composite radiation-resistant agent is 11000 ESH, the electron radiation resistance is 1 * 10 < 15 > e / cm < 2 >, and the temperature resistance range of the adhesive film is-196 DEG C to 400 DEG C.

The utility model relates to a photovoltaic cell testing device in a simulated besides-satellite environment, which is used for testing the performance of a photovoltaic cell assembly in the simulated besides-satellite environment, and specifically comprises a device main body which comprises a main cavity, an upper functional flange, a lower functional flange and a working platform; the vacuum simulation module is used for simulating the vacuum environment of the besides-star surface and comprises a vacuum pump assembly and a pressure measurement and control assembly; the temperature simulation module is used for simulating the environment temperature of the besides-star surface and comprises a heating assembly, a refrigeration assembly and a temperature control assembly; the illumination simulation module is used for simulating the illumination condition of the besides-star surface and comprises an optical window and a xenon lamp light source; and the irradiation simulation module is used for simulating irradiation conditions of the besides-satellite surface and comprises an electron radiation light source and an ultraviolet light source. Compared with the prior art, the device can be used for performing photovoltaic cell performance test on the photovoltaic cell assembly under different environment conditions of simulating a besides-star.

A downhole tool is provided that includes radiation shielding using a material that is lighter, stronger, less expensive, and / or more commercially available than tungsten radiation shielding. Such a downhole tool may include an electronic radiation generator that emits photons through a source window located on an outer surface of the downhole tool. A detector may detect at least some of the photons through a detector window. Radiation shielding of the downhole tool may attenuate photons that travel from the electronic radiation generator toward the detector without passing through the detector window. The radiation shielding may include a material that has a density less than 10.5 g / cc and an element of atomic number greater than 40.

The invention relates to a method for producing a nonwoven material suitable for removing anions which present a health hazard from an aqueous solution by modifying a surface of the nonwoven material. The method according to the invention has the steps of: a) providing a nonwoven material selected from the group comprising polypropylene, polyethylene, viscose, polyamide, polylactide, polyester, polyethersulfone, polysulfone, and polyvinylidene fluoride; b) applying a coating solution onto the nonwoven material, the coating solution containing polyallylamine hydrochloride (PAH) and / or polyhexamethylene biguanide (PHMB) as a modification reagent; c) treating the nonwoven material and the coating solution with electron radiation; and d) purifying the modified nonwoven material.

The invention belongs to the technical field of medical equipment, and particularly relates to a module-separable CT-Linca structure which comprises an annular rack, a linear accelerator shell, a CT source, a CT detector, a linear accelerator treatment head, an electron radiation field imaging device and a shielding structure. A fixed mounting center connecting line is perpendicular to a separated mounting position center connecting line, a CT source and a CT detector are arranged in the fixed mounting position, the electron radiation field imaging device and the shielding structure are integrated into a separable module and are arranged in the separated mounting position, and the linear accelerator treatment head is integrated into a separable module and is arranged in the separated mounting position; and a storage position is arranged on the linear accelerator shell. The linear accelerator treatment head, the electron radiation field imaging device and the shielding structure are designed into a separable module, and are matched with corresponding quick connection locking, storage grabbing and rotation control mechanisms, so that efficient switching between a CT imaging mode and a radiotherapy mode is realized, the diagnosis and treatment precision and efficiency are improved, and meanwhile, the equipment maintenance cost is reduced.

The application provides an anti-electron radiation MOSFET reinforced packaging structure and belongs to the technical field of electronic power devices, and specifically comprises: a first anti-radiation conductive sheet, a second anti-radiation conductive sheet and a buffer conductive sheet; the first anti-radiation conductive sheet and the second anti-radiation conductive sheet cover a MOSFET chip; and the first anti-radiation conductive sheet and the second anti-radiation conductive sheet are both high-Z materials; one end of the first anti-radiation conductive sheet is connected with a source above the MOSFET chip through the buffer conductive sheet; one end of the second anti-radiation conductive sheet is connected with a drain below the MOSFET chip; the first anti-radiation conductive sheet is used for resisting electron radiation above the MOSFET chip; and the second anti-radiation conductive sheet is used for resisting electron radiation below the MOSFET chip. The application realizes a compromise between anti-radiation performance, volume, weight and cost.

This invention discloses an integrated system for purifying CO2 and regenerating O2 in a confined space using low-energy electron radiation, comprising: a CO2 reduction reaction chamber with a reaction cavity inside, a stage for placing a catalyst within the reaction cavity, and an electron gun interface; a low-energy electron source connected to the CO2 reduction reaction chamber via the electron gun interface, with its electron beam extraction port corresponding to the stage; a CO2 enrichment device connected to a circulation pump, containing a CO2 capture module and a heating module connected to the CO2 capture module; the CO2 enrichment device being connected to the CO2 reduction reaction chamber via a pipeline; and a steam generator connected to the CO2 reduction reaction chamber via a pipeline. This invention utilizes controllable low-energy electrons to reduce and regenerate CO2 into O2, achieving timely purification of CO2 and regeneration of O2 in a confined space, solving the problem of non-renewable traditional CO2 capture agents and oxygen generators.

The utility model discloses an underground water purification system based on integration of multiple technologies, which belongs to the technical field of underground water purification and comprises a cylindrical micro-nano molecular sieve, a water inlet pipe is fixedly communicated with the upper surface of the cylindrical micro-nano molecular sieve, and a water outlet pipe is fixedly communicated with the lower surface of the cylindrical micro-nano molecular sieve. Through the arrangement of a water inlet pipe, an extreme ultraviolet light generator, a main water pipe, a first water guide hole, an auxiliary water pipe, a second water guide hole, a multi-component compound filter material, a photocatalytic material reaction assembly and a multi-stage direct-current electrolytic electric flocculation reactor, low-temperature plasma is a substance state generated by converting stable gas into ionized gas by providing energy for the stable gas; the equipment realizes effective treatment of pollutants through the combined action of various methods such as high-energy electron radiation, ozone oxidation and ultraviolet decomposition, has the remarkable characteristics of low energy consumption, high efficiency and no secondary pollution, can filter impurities in sewage through the arrangement of the supporting plate, the filter screen and the cover plate, and also has the advantages of simple structure and low cost. And people can replace and clean the filter screen.