78 results about "Ionization energy" patented technology

The embodiment of the invention relates to a method and a device for predicting optical energy characteristics of organic photovoltaic material molecules. The method comprises the following steps: constructing an optical energy characteristic prediction model for predicting ionization energy, emission energy and absorption energy according to a molecular structure, temperature, pressure intensity and wavelength sequence input by the model; constructing a first data set through data acquisition; training an optical energy characteristic prediction model based on the first data set; after the training is finished, the training is finished; a first molecular structure, a first temperature, a first pressure and a first wavelength sequence input by a user are used as a corresponding molecular structure M, a temperature x, a pressure y and a wavelength sequence Z to be input into an optical energy characteristic prediction model for processing, and ionization energy uIE, an emission energy sequence SEE and an absorption energy sequence SAE which are processed and output by the model are used as corresponding first ionization energy; the first emission energy sequence and the first absorption energy sequence are fed back to the current user. According to the invention, the prediction efficiency can be improved.

The invention discloses a composite ion source device for coupling atmospheric pressure interface orbitrap mass spectrometry, which belongs to the field of mass spectrometry detection and comprises a photo ionization / photo-induced association ionization ionization and ion transmission mechanism, a gas sample introduction mechanism, a high-flux radio frequency vacuum ultraviolet light source mechanism and an ion source and mass spectrometry interface mechanism. By adopting the composite ion source device for coupling the atmospheric pressure interface orbitrap mass spectrum, organic components with different polarities, ionization energy and ion affinity in a complex mixture can be efficiently ionized, and through reasonable structural design, the organic components are coupled with the high-resolution orbitrap mass spectrum with the atmospheric pressure interface, so that the high-resolution orbitrap mass spectrum is obtained. The detection range of complex organic components is widened, and the resolution capability and the detection sensitivity of low-abundance or high-molecular-weight organic components are improved.

The invention discloses a p-type gallium oxide thin film adopting fluorine ion implantation, an ultraviolet photodiode and a preparation method, and belongs to the technical field of semiconductor preparation. According to the method, monovalent fluorine positive ions are injected into a high-electric-property heavily-doped p-type gallium oxide thin film, after fluorine ions (F < + >) replace oxygen (O), O replacement is achieved, the O becomes interstitial impurities as little as possible, electrons bound by existing Ga-O bonds at other positions can be further attracted due to positive electricity, holes are formed in the existing Ga-O bonds at other positions, and therefore the high-electric-property heavily-doped p-type gallium oxide thin film is formed. Fluorine ions (F < + >) play a role of acceptor impurities. The method not only solves the problem that a suitable p-type doping method is lacked at the present stage, but also effectively overcomes the difficulty that the acceptor doping concentration for generating p-type gallium oxide is difficult to adjust in the prior art, and successfully prepares the p-type single crystal gallium oxide film with high hole carrier concentration, low acceptor ionization energy and low defect rate in a specific region.

The invention discloses a high-precision control nickel-64 solid nuclear target electroplating preparation method, which belongs to the technical field of solid nuclear target production, and comprises the following steps: step 1, calculating the mass of a simple substance nickel raw material: injecting protons into simple substance solid nickel, calculating an ionization energy loss curve and making an energy loss integral curve, calculating the mass of the elemental nickel raw material according to the density of the elemental nickel and the relative atomic mass of nickel-64; 2, a nickel plating solution is prepared; and step 3, electroplating to prepare the nickel-64 solid nuclear target. According to the method, the Monte Carlo simulation method based on the Newton's law of motion and the molecular dynamics equation is introduced in the process of calculating the mass of the elementary nickel raw material, and the motion trail and the energy loss of the protons injected into the elementary solid nickel are considered in the calculation process, so that the calculation precision of the mass of the elementary nickel raw material is remarkably improved; the prepared nickel-64 solid nuclear target can meet application requirements, raw material waste is reduced as much as possible, and the production cost is reduced.

The invention relates to a carbon ion radiotherapy relative biological effect prediction method and device, and the method comprises the steps: obtaining carbon ion RBE prediction input data comprising carbon ion physical parameters, tumor cell parameters and equivalent W value database data, enabling the input information to adapt to different tumor characteristics, and enabling the subsequent prediction to be more fit with a specific treatment scene; the input data is substituted into a target RBE prediction model which is constructed based on sodium dosimetry and optimized by an average ionization energy correction factor for processing, on one hand, an equivalent W value database provides corrected basic data, and in combination with a model core of the sodium dosimetry, prediction is closer to the actual action effect of carbon ions from the mechanism level, experience errors are reduced, and the prediction efficiency is improved. And on the other hand, the dual design of nanodosimetry and average ionization energy correction can also accurately associate the physical effect and the biological effect of the carbon ions, and it is guaranteed that the output target carbon ion RBE predicted value is more accurate.

The present invention discloses a method and system for obtaining the charge injection barrier at a metal / polymer interface. The method comprises the following steps: obtaining a metal / polymer interface model based on first principles, according to the metal / polymer interface for which the charge injection barrier is to be obtained; obtaining the metal surface work function, vacuum energy level difference, polymer electron affinity, and ionization energy based on first principles, the polymer molecular chain structure model, and the metal / polymer interface model; and calculating the charge injection barrier at the metal / polymer interface based on the obtained physical quantities and the definition of the metal / insulating material charge injection barrier in energy band theory. This method solves technical problems in the prior art, such as the significant influence of external interference on the results; the difficulty in standardizing the experimental process for different polymer materials and metal electrode materials; and the lack of a complete theoretical basis for the method.

The application discloses a high-energy and few-cycle blue light laser generation method and device, and belongs to the technical field of ultrafast laser, wherein the method comprises the following steps: adopting a nonlinear crystal to double frequency of a base frequency pulse after compression, and performing at least twice pulse width compression on the obtained double frequency pulse to obtain high-energy and few-cycle blue light laser; wherein, the double frequency process and the pulse width compression process are both performed in a cavity filled with helium; the pulse width compression process is performed through spectral broadening of a solid sheet; since the helium has extremely low linear dispersion and nonlinear coefficient and extremely high ionization energy, not only the solid sheet damage can be avoided, and a part of spectral broadening is contributed, but also an environment close to vacuum can be provided in terms of dispersion and laser-induced ionization, so that the dispersion compensation of the double frequency pulse is easier, and the energy loss caused by gas ionization and the input energy limitation are avoided, and higher output energy is allowed; the problem that the high-energy and ultra-short pulse width blue light pulse is difficult to be realized simultaneously at present is effectively solved.

The invention provides a two-dimensional memristive material screening method and system and a two-dimensional memristive material, and relates to the technical field of two-dimensional memristive materials, and the method comprises the steps: obtaining a two-dimensional polar semiconductor material according to the physical and chemical properties of a two-dimensional material; manufacturing defects in the two-dimensional polar semiconductor material to obtain a defect material; first formation energy of the defect is calculated, and first ionization energy of the defect is calculated when the first formation energy is smaller than a formation energy threshold value; when the first ionization energy is smaller than an ionization energy threshold value, polarization overturning operation is carried out on the defect material so as to change the conductive property of the defect material; calculating second ionization energy of the defect after polarization flipping so as to calculate a difference value between the first ionization energy and the second ionization energy; and taking the two-dimensional polar semiconductor material of which the difference value is greater than a difference value threshold value as a two-dimensional memristor material. The two-dimensional memristor material with the resistance change property can be screened out only by calculating the formation energy and ionization energy of different defects, the material screening efficiency can be improved, and the problem that the two-dimensional memristor material is difficult to screen is solved.

The present invention discloses a composite ion source device for coupling an atmospheric pressure interface orbital trap mass spectrometer, belonging to the field of mass spectrometry detection, and comprising a photoionization / photoinduced association ionization and ion transmission mechanism, a gas sampling mechanism, a high-throughput radio frequency vacuum ultraviolet light source mechanism, and an ion source and mass spectrometer interface mechanism. The present invention adopts the above-mentioned composite ion source device for coupling an atmospheric pressure interface orbital trap mass spectrometer, so that organic components of different polarities, ionization energies, and ion affinities in complex mixtures can be efficiently ionized. Through reasonable structural design, the device is coupled with a high-resolution orbital trap mass spectrometer with an atmospheric pressure interface to achieve a broadened detection range of complex organic components and improve the resolution and detection sensitivity of low-abundance or high-molecular-weight organic components.

To provide a short arc type discharge lamp which has a characteristic that is similar to the short arc type discharge lamp into which a mixed gas having a conventional xenon gas or a xenon gas as a main component is sealed, and which can be replaced.SOLUTION: A short arc type discharge lamp 10 seals a mixed gas to which a xenon gas having an ionization energy is higher than that of mercury by using an argon gas of which the ionization energy is higher than that of a xenon gas as a main component with mercury into an electric discharge tube 12.SELECTED DRAWING: Figure 1

The invention relates to the technical field of mass spectrum analyzers, in particular to an orthogonal electrochemical mass spectrum device. Comprising a photoionization system, an electron ionization system and an electrochemical reaction tank, the electrochemical reaction tank is sequentially connected with the photoionization system and the electron ionization system through a vacuum sampling pipe, and the photoionization system ionizes volatile organic compound gas generated in the electrochemical reaction tank to obtain a soft ionization spectrogram of the volatile organic compound gas; the electron ionization system is used for ionizing inorganic components generated in the electrochemical reaction tank to obtain an inorganic component mass spectrum. The photoionization source and the electron ionization source are ingeniously and orthogonally combined, soft ionization of volatile organic compounds and effective ionization of high-ionization-energy inorganic compounds in the electrochemical process can be achieved at the same time, and therefore the real-time concentration change trend of the volatile organic compounds and inorganic compounds is obtained.

The invention discloses a method for detecting the content of elements in alloy or ore by using an ICP emission spectrometer, and belongs to the technical field of spectral analysis. The invention solves the problems of inaccurate measurement result caused by easy ionization element interference and spectral background drift when the existing ICP spectrometry is used for analyzing a complex matrix sample, and the problems of complicated process and low efficiency of the traditional chemical analysis method, and provides a dynamic internal standard introduction technology and combination of low ionization energy and high ionization energy internal standard elements. According to the method, the matrix effect and spectrum background interference can be corrected in real time, the detection accuracy and stability are remarkably improved, meanwhile, through real-time quality monitoring and pre-training of an interference correction model, the detection efficiency and reliability are improved, powerful technical support is provided for high-precision detection of the content of elements in alloy and ore, and finally, the method has good application prospects. The element content is calculated by comparing the corrected net strength of the to-be-detected element with the pre-established standard curve, so that the accuracy and the reliability of a detection result can be remarkably improved.

To suppress leakage current.SOLUTION: A piezoelectric element 36 includes: a top electrode TE; a bottom electrode BE; a piezoelectric layer PL provided between the top electrode TE and the bottom electrode BE; and an insulating layer IL1 provided between the top electrode TE and the piezoelectric layer PL and having insulation properties. When EAp represents the electron affinity of a piezoelectric material included in the piezoelectric layer PL, IEp represents the ionization energy of the piezoelectric material, WF represents the work function of an electrode material included in the top electrode TE, and IEi represents the ionization energy of an insulating material included in the insulating layer IL1, both of WF>(EAp+IEp) / 2 and IEi>IEp are satisfied.SELECTED DRAWING: Figure 5

This electrode substrate comprises a substrate, an electrode disposed on the substrate, and a coating that covers a portion of the surface of the electrode. The electrode has a first metal atom. The coating includes a first coating having a second metal atom that has an ionization energy lower than that of the first metal atom.

The invention discloses a method for reducing the matrix effect of a photoionization ion mobility spectrometry detection complex sample, and the ion mobility spectrometry comprises an ion migration tube with good air tightness, a photoionization source and an ion receiving electrode which are respectively and oppositely arranged at the left end and the right end of the ion migration tube, and an ion gate located between the photoionization source and the ion receiving electrode. The area between the photoionization source and the ion gate is an ionization area, and the area between the ion gate and the ion receiving electrode is a migration area. According to the method, the air pressure in an ion migration tube is maintained within the range of 10-80 kPa, meanwhile, an isolation high-voltage power supply connected with an ionization region is adjusted, and the electric field in the ionization region is maintained within the range of 300-600 V / cm, so that the charge transfer and proton transfer plasma-molecule reaction of ionized complex target compound ions in the ionization region is inhibited, and the target compound ions can be effectively separated from the ion migration tube. Therefore, the influence of a complex matrix on accurate quantification of the ion mobility spectrometry and detection of a low-proton-affinity or high-ionization-energy target compound can be eliminated.

The invention belongs to the field of mass spectrum ionization, and particularly relates to a photoinduced Penning ionization mass spectrum method. Photoelectrons generated by a photoelectric effect accelerate in an electric field to obtain enough energy, helium He, neon Ne and argon Ar in ground states are excited to metastable states, and the energy of the metastable states of the neutral atoms is higher than 10.6 eV (He excitation energy is 20.62 eV and 19.82 eV); the excitation energy of Ne is 16.72 eV, and the excitation energy of Ne is 16.62 eV; the excitation energy of Ar is 11.72 eV and 11.55 eV), sample molecules with ionization energy higher than photon energy and incapable of being ionized by traditional photoionization can be ionized through Penning ionization, so that the reduction of mass spectrum resolution, sensitivity and quantitative capacity caused by a space charge effect caused by coulomb repulsion among too strong reagent ions in an ion transmission process is avoided, and the detection sensitivity is improved. And damage of too strong reagent ions to the ion detector. The sensitivity can be improved by about 5 times for sample molecules ionized by traditional photo ionization energy, such as toluene, with ionization energy lower than photon energy.

This suppresses plasma leakage, which occurs in plasma processing equipment where plasma is present in the exhaust space. [Solution] A plasma processing apparatus comprising a chamber, a substrate support portion provided in the chamber, a gas supply port for supplying a processing gas into the chamber, and a gas outlet to which an exhaust portion for exhausting the chamber is connected, wherein the space within the chamber includes a first space where the substrate is processed and a second space to which the exhaust portion is connected, and further comprises a gas inlet for introducing a predetermined gas with a higher ionization energy than the processing gas into the second space.

A neutrino detection system and method based on one or more semiconductor Germanium point-contact diodes. These diodes act simultaneously as target for neutrinos or antineutrinos, that scatter off atomic nuclei, and as detectors, that register the ionization energy released in such interactions. Also included are various compact shield configurations that enhance the signal-to-background ratio and allow for a mobile detector operation under many environmental conditions including above ground and close to reactor sites. The neutrino detector can be used, for instance, for reactor operation monitoring, geological-radiochemical surveys and neutrino telecommunication systems.

The embodiment of the present application relates to a kind of organic photovoltaic material molecule optical energy characteristic prediction method and device, the method comprises: constructing a kind of optical energy characteristic prediction model for according to model input molecular structure, temperature, pressure and wavelength sequence carry out ionization energy, emission energy and absorption energy prediction processing;And by data acquisition, first data set is constructed;And based on first data set, optical energy characteristic prediction model is trained;And after training, the first molecular structure, the first temperature, the first pressure and the first wavelength sequence input optical energy characteristic prediction model are handled as corresponding molecular structure M, temperature x, pressure y and wavelength sequence Z after training end, and the ionization energy u IE , emission energy sequence S EE And absorption energy sequence S AE As corresponding first ionization energy, first emission energy sequence and first absorption energy sequence are fed back to the current user.The prediction efficiency can be improved by the present application.

The application belongs to the technical field of CrMo high strength and toughness steel design, and discloses a design method of CrMo high strength and toughness steel based on atomic physical feature coupling machine learning and a preparation method thereof. By introducing atomic scale physical and chemical features (especially "weighted variance" features) as key inputs of machine learning, the application accurately designs a CrMo alloy steel which still maintains excellent plasticity under ultrahigh strength (>1400MPa) or maintains high strength under high toughness. The application first introduces atomic physical and chemical feature parameters such as "ionization energy variance" into steel design, reveals the strengthening mechanism at the electron level, avoids blind component trial and error, and significantly reduces the research and development cost.

Intraocular lenses and methods of manufacturing lenses. The lenses may include haptics optionally with a plurality of footplates. The lenses may include one or more anterior surface elements that may be one or more of iris damage resist elements or iris interface rotational resist elements. The lenses may include one or more haptic regions that are adapted to swell more than other adjacent haptic regions. The lenses may include at least three discrete zones. Methods of manufacturing may include delivering ionizing energy to a body to break at least some of the cross-link bonds.

The application discloses a kind of self-adaptive voltage stabilizing control method and system of ion source power supply, belong to power electronics technical field, including, step 1, obtain the gas ionization energy analog voltage value in the first microsecond of the rising edge of ignition trigger signal, gas pressure analog voltage value, set power analog voltage value, form three-dimensional feature vector;Step 2, the three-dimensional feature vector is non-linearly mapped into jump amplitude, jump time constant and steady-state value after jump, and the pre-compensation coefficient is calculated according to jump amplitude and jump time constant;Step 3, obtain the instantaneous rate of change of feedback current;The application can realize by capturing the analog voltage value corresponding to gas ionization energy, gas pressure, set power in the first microsecond of the rising edge of ignition trigger signal and forming three-dimensional feature vector, load jump parameter is obtained by non-linear mapping, solve the problem that traditional control cannot adapt to load microsecond-level nonlinear mutation, improve control response real-time.

The invention discloses a basic nickel carbonate impurity element detection method and system, and belongs to the technical field of impurity detection.The basic nickel carbonate impurity element detection method is characterized by comprising the steps that the concentration of a nickel matrix is obtained, corrected physical and chemical parameters are obtained according to the concentration of the nickel matrix and a static physical and chemical parameter library, and the physical and chemical parameters comprise ionization energy, a complexing constant and a volatilization coefficient; the concentration of the nickel matrix is obtained according to a to-be-detected solution, and the to-be-detected solution is obtained by digesting an original basic nickel carbonate sample; obtaining an enhanced signal according to the characteristic peak shape template and the solution to be detected; according to the method, the physical and chemical parameters of the impurities are dynamically corrected according to the actual nickel matrix concentration, the parameter mismatch error caused by matrix fluctuation is eliminated, the signal response benchmark is unified through dynamic valence correction, nonlinear quantitative modeling and digestion loss compensation are matched, and the concentration corresponding to each impurity element is obtained. And accurate prediction of the impurity concentration is realized.

A device including a first portion, a second portion, a first contact and a second contact, the first portion being made of a semiconductor having a first doping, the second portion being made of a semiconductor having a second doping different than the first, the first portion and the second portion forming a p / n junction including a depletion zone in the first portion, the contacts being configured so that when an electric voltage (V1) is applied between the contacts, a dimension of the depletion zone depends on a value of the electric voltage, an ionization energy being defined for dopants of the second portion. The device includes an emitter generating a radiation having an energy greater than the ionization energy and illuminating the second portion with the radiation.

A water purification device of the type comprising a unit configured to receive visible radiation, in particular solar radiation, and to convert the visible radiation into electromagnetic energy for amplification and conversion into an ionization energy by means of which the water to be purified is treated, characterized in that the device comprises: a central sphere (10), which is arranged in the central sphere (10); the light source is made of light radiation permeable materials; an equatorial disc (13) of the central sphere (10) made of a material permeable to light radiation and extending beyond the edge of the sphere in an annular equatorial region to define two hemispheres in the sphere; two groups of peripheral spheres, each consisting of four peripheral spheres (12), one sphere (16, 16 ') being placed on the pole of each hemisphere, and the other three spheres (18, 20, 22; 18 ', 20', 22 ') are simultaneously tangent to both the same hemisphere and the annular region of the equatorial disc (13), the polar peripheral spheres (16, 16') in each group being tangent to the three non-polar peripheral spheres (18 ', 20', 22 '; one equilateral pyramid (12, 18, 20, 22) is located at the vertex of the equilateral pyramid, said equilateral pyramid and the other equilateral pyramid interpenetrating at the equatorial disc (13); an equatorial disc (13 ') in each peripheral sphere (12), the equatorial disc (13') being arranged parallel to the equatorial disc (13) of the central sphere (10) made of a material permeable to light radiation; the conveying pipeline (24) is used for water to be purified and is configured to be a Venturi tube (26) which is provided with a contraction section and then connected with a diffusion section; a planar spiral winding (14) made of electrically conductive wires and a planar spiral winding (14 ') made of electrically conductive wires, the planar spiral winding (14) being arranged on the equatorial disc (13) of the central sphere (10) and the planar spiral winding (14') being arranged on the equatorial disc (13 ') of each peripheral sphere (12); a pair of oppositely arranged conical spiral windings (15, 15 ') made of conductive wires, the vertexes of the pair of conical spiral windings (15, 15') being located at the center of the equatorial disc (13 ') of each peripheral sphere (12) and the bottoms of the pair of conical spiral windings (15, 15') being located on the surface of the peripheral sphere; the number of turns of one of the two conical windings is twice of that of the other conical winding, and the winding directions of the two conical windings are opposite; a pair of conductive wire windings (28, 28 ') extending along the contracted section and the diffused section of the transfer conduit (24); a first electrical connection connecting the internal terminals of the conical spiral windings (15, 15 ') of each peripheral sphere (12) to the internal terminals of the planar spiral windings (14') of the same peripheral sphere; a second electrical connection connecting the external terminals of the planar winding (14 ') of each polar peripheral sphere (16, 16') to all other non-polar peripheral spheres (18 ', 20', 22 '; an external terminal of the planar spiral winding (14 ') of the planar spiral winding (18, 18, 20, 22) and an internal terminal of the planar spiral winding (14) of the equatorial disc (13) of the central sphere (10); and a third electrical connection connecting the planar spiral winding (14) of the equatorial disc (13) of the central sphere (10) to the winding (28, 28 ') of the transfer duct (24).

The invention relates to a simulation method for obtaining amorphous SiOC atom abscission energy based on molecular dynamics simulation, which utilizes the characteristics of long-range disorder and isotropy of an amorphous material, selects reasonable criteria, and finds the atom abscission energy in the amorphous material through an attempt method and a dichotomy, so as to obtain the amorphous SiOC atom abscission energy. The processes of automatic and batch molecular dynamics parameter setting, task creation and operation, result judgment and the like are achieved through programming, combination with open-source molecular dynamics simulation software is completed, and basic data used for counting atomic off-site energy is obtained. According to the method, rapid, automatic and batch combination with molecular dynamics calculation software is achieved through programming, time and economic cost are greatly saved, and meanwhile the phenomena of careless mistakes and non-uniform calculation parameters caused by a large amount of operation are avoided. In addition, operation is simple, key parameters are adjustable, and expansibility is high.

The invention provides an enhanced nitride semiconductor transistor epitaxial structure, which comprises a substrate, a nucleating layer, a buffer layer, a channel layer, a barrier layer and a cap layer arranged on the barrier layer, and the cap layer comprises a p-type polarization doped AlInGaN structure in which the Al component is gradually reduced along the epitaxial growth direction or the In component is gradually increased along the epitaxial growth direction. P-type doping is achieved through polarization doping instead of Mg atom impurity doping, higher negative ionization charge density and hole concentration are obtained, meanwhile, due to the fact that ionization charges and hole concentration generated by polarization doping are hardly affected by impurity ionization energy, an AlGaN or AlInGaN layer with the forbidden band width larger than that of GaN can be adopted as the cap layer, and therefore the performance of the device is improved. Therefore, the nitride transistor can obtain higher threshold voltage, and the reliability of the device in work is improved.

To provide an energy level determination method and an energy level determination system which can highly-accurately and easily determine an energy level of a solid from an electron spectroscopy spectrum or an optical absorption spectrum.SOLUTION: An energy level determination method determines a level of energy, such as electron affinity and ionization energy, of a solid from an electron spectroscopy spectrum or an optical absorption spectrum. The onset of the electron spectroscopy spectrum or the optical absorption spectrum is automatically determined by such a learned machine learning model that a measured value data set of the electron spectroscopy spectrum or the optical absorption spectrum has been learned.SELECTED DRAWING: Figure 5

Device for purifying water, of the type comprising a unit configured to receive visible light radiation, in particular solar radiation, and to transform it into electromagnetic energy to be amplified and transformed into ionising energy, with which the water to be purified is treated, characterised in that it comprises: - a central sphere (10) made of material transparent to light radiation, - an equatorial disk (13) of said central sphere (10), made of material transparent to light radiation, and extending beyond the edge of said sphere in an annular equatorial sector, which identifies two hemispheres in said sphere, - two groups of four peripheral spheres (12), of which one sphere (16, 16') is placed on the pole of a hemisphere and the other three spheres (18, 20, 22, 18', 20', 22') are simultaneously tangent to the same hemisphere and to the annular sector of the equatorial disk (13), the polar peripheral sphere (16, 16') of each group and the three non-polar peripheral spheres (18', 20', 22', 18,20,22) of the other group being placed at the vertices of an equilateral pyramid interpenetrating with the other equilateral pyramid at the equatorial disk (13), - an equatorial disk (13') in each peripheral sphere (12), arranged parallel to the equatorial disk (13) of said central sphere (10) made of material transparent to light radiation, - a transfer duct (24) for the water to be purified configured as a venturi tube (26) with a convergent section followed by a divergent section, - a flat spiral winding (14) of electrically conductive wire placed on the equatorial disk (13) of said central sphere (10) and a flat spiral winding (14') of electrically conductive wire placed on the equatorial disk (13') of each peripheral sphere (12), - a pair of opposing conical spiral windings (15, 15') of electrically conductive wire, having their vertex on the centre of the equatorial disk (13') of each peripheral sphere (12) and their base on the surface of this, one of the two conical windings having double the number of turns compared to the other and opposite winding direction, - a pair of windings (28,28') of conductive wire running along the convergent section and along the divergent section of said transfer duct (24), - a first electrical connection of the internal terminal of the conical spiral windings (15, 15') of each peripheral sphere (12) with the internal terminal of the flat spiral winding (14') of the same peripheral sphere, - a second electrical connection of the external terminal of the flat winding (14') of each polar peripheral sphere (16, 16') with the external terminal of the flat spiral winding (14') of all the other non-polar peripheral spheres (18', 20', 22', 18, 20, 22) belonging to the other group and with the internal terminal of the flat spiral winding (14) of the equatorial disk (13) of the central sphere (10), a third electrical connection of said flat spiral winding (14) of the equatorial disk (13) of the central sphere (10) with the windings (28,28') of said transfer duct (24).