78 results about "Synchrotron light source" patented technology

The invention relates to a shale gas reservoir character prediction method. In the method, scanning lines in the horizontal direction are formed through focusing by a reflective mirror in a mirror box with a synchrotron radiation light source. Vertical scanning is achieved through rotating vibration of the reflective mirror for obtaining micro-structure three-dimensional data of a shale gas occurrence porous sample. Three-dimension reconstruction is carried out to the obtained micro-structure three-dimensional data and porosity and an inherent permeability of a shale three-dimensional digital rock core are obtained through calculation in a manner of coupling between molecular dynamics and crystal lattice Boltzmann method and are expressed by mathematic expressions. In the invention a synchrotron radiation light and a computer technology are employed for researching the porosity and the inherent permeability of the shale three-dimensional digital rock core. The method is economic and environmental-protective, is easy to operate, can provide required important evaluation parameters for exploration and development of shale gas, can predict an adsorption/desorption principle of free gas and adsorbed gas in the shale gas, can be used for researching the porosity and the inherent permeability of the shale three-dimensional digital rock core, and provides technical support for development of the shale gas.

The invention relates to a shale gas reservoir characteristic simulation method. The shale gas reservoir characteristic simulation method comprises the steps of focusing light into scanning lines in the horizontal direction through a reflection mirror of a mirror box by utilizing synchrotron radiation light sources, realizing vertical scanning through rotational vibration of the reflection mirror, and obtaining three-dimensional micro-structure data of a shale gas occurrence porous medium sample; then, carrying out three-dimensional reconstruction on the obtained three-dimensional micro-structure data, obtaining a percolation mechanism in unconventional shale gas occurrence medium through coupling computation by utilizing molecular dynamics and a lattice boltzmann method, and using a mathematical expression to express the percolation mechanism. According to the shale gas reservoir characteristic simulation method disclosed by the invention, a microcosmic percolation mechanism in the unconventional shale gas occurrence medium is researched by utilizing synchrotron radiation light and a computer technology, economy and environmental protection are realized, and the operation is simple; necessary and important evaluation parameters are provided for exploring and developing shale gas; an adsorption/ analysis law of free gas and adsorbed gas in the shale gas can be simulated, and technical support is provided for mining the shale gas.

The invention discloses a synchrotron radiation X-ray microscopic CT suitable for imaging of living small animal limbs and a fixing device. The fixing device comprises an objective table for an anesthetized small animal to be placed, a column fixed to the objective table and a lead cover which covers the objective table and seals the upper part and periphery of the objective table, a synchrotron radiation light source comprises the fixing device, the objective table of the fixing device is fixed to a rotating sample table of the synchrotron radiation X-ray microscopic CT, and moreover, the axis of a sleeve on the objective table is coaxially arranged with the rotating axis of the rotating sample table. The fixing device of the synchrotron radiation X-ray microscopic CT can be used for integrally and locally fixing the living small animal, and meanwhile, the influence of high-dose radiation on the trunk part outside the joints of the limbs can be avoided; the survival of the living small animal can be protected to the greatest extent, and long-term animal experiments can be conveniently carried out.

The invention discloses a synchrotron radiation in-situ imaging fatigue testing machine comprising a temperature control mechanism and a testing method of the synchrotron radiation in-situ imaging fatigue testing machine, and belongs to the field of fatigue testing machines. The synchrotron radiation in-situ imaging fatigue testing machine comprising the temperature control mechanism comprises a base and a top cover, wherein the bottom of a bottom plate is inlaid in a synchrotron radiation light source platform in a cross manner; a clamping mechanism is arranged on the cylindrical base of the synchrotron radiation light source platform; and the temperature control mechanism is arranged between the base and the cylindrical top cover. The testing method comprises the following steps: clamping a sample between an upper clamp and a lower clamp; then fixing an inner enclosure and an outer enclosure well; feeding temperature control air flow and nitrogen to the inner side and the outer layer of the inner enclosure of the testing machine to control the temperature of the sample and prevent water spray from being produced on the enclosure; and then starting a servo motor, applying vertical reciprocating loading to the sample, and acquiring pressure by using a load sensor. The testing machine can analyze fatigue properties of the sample at different temperatures, and microstructure morphology and defects of a material can be observed well.

The invention discloses a circuit for improving measurement sensitivity of a working point and method. The related circuit comprises a beam position detector, envelope demodulation circuits, AC couplers, a high-resistance differential amplifier, a notch filter and a bandpass filter, wherein each of the two output ends of the beam position detector is connected with one envelope demodulation circuit respectively; the output end of each envelope demodulation circuit is connected with one AC coupler; the output ends of the two AC couplers are correspondingly connected with a reverse input end anda forward output end of the high-resistance differential amplifier respectively; the output end of the high-resistance differential amplifier is connected with the notch filter; and the output end ofthe notch filter is connected with the bandpass filter. The scheme has a simple principle; the circuit structure is easy to build; and in comparison with the conventional working point measurement method, the working point frequency detection sensitivity can be greatly improved, and the method is particularly suitable for real-time working point detection and parameter feedback in a synchrotron radiation light source electronic storage ring.

The invention provides a method for preparing an X-ray genetic marker probe based on a synchrotron light source. The preparing method comprises the steps of 1, constructing fusion expression plasmids containing enzyme and target protein at the same time, and transfecting the fusion expression plasmids into cells; 2, conducting ice-bathing fixation of the cells by means of glutaraldehyde fixing liquid; 3, adding substrate molecule reaction liquid for ice-bathing reaction; 4, removing the reaction liquid, and fixing the cells with the fixing liquid; and 5, conducting synchrotron X-ray imaging observation, wherein the enzyme has substrate molecule catalytic activity. The invention further provides an X-ray genetic marker probe based on a synchrotron light source prepared with the preparing method, and application of the probe to cell imaging. The method can be used for high-specificity recognition and high-resolution imaging of intracellular biomolecules, and has broad biomedicine application prospects.

The invention discloses an improved clamping mechanism of a fatigue testing machine for in-situ imaging of a synchronous radiation light source, which is arranged on a platform cylindrical base of the synchronous radiation light source. The improved clamping mechanism comprises a sample clamping unit and a plastic deformation additional adjusting unit, wherein the sample clamping unit is vertically arranged along the axle wire of the base of the fatigue testing machine and is divided into two parts of a lower clamping head section and an upper clamping head section, and the upper clamping head section is provided with the plastic deformation additional adjusting unit. Compared with a fatigue testing machine in the previous generation, the improved clamping mechanism of the fatigue testing machine for the in-situ imaging of the synchronous radiation light source, disclosed by the invention, is further improved, and the properties of buffer vibration attenuation and noise reduction of a system are increased; on the premise that load is fully enabled to be applied to a sample, the integral bearing performance of the fatigue testing machine is ensured; the plastic deformation additional adjusting unit can be used for adjusting the size of an applied force after plastic deformation of the sample happens in compaison with the fatigue testing machine in the previous generation, detailed problems in a test implementing process are more detailedly considered.

The invention discloses a real-time dynamic color regulation and control micro device, a method for preparing the micro device and a real-time dynamic color regulation and control method. The method for preparing the micro device comprises the following steps of: preparing a high-aspect-ratio polymethyl methacrylate (PMMA) two-dimensional microstructure array on a platinum layer by using a synchrotron radiation light source; depositing a lead zirconate titanate film layer in a microstructure by using direct current magnetron sputtering; and depositing a high-reflectivity nano metal chromium layer on the top of the micro structure to form an upper reflecting layer and a lower reflecting layer with height difference. By changing voltage between platinum and chromium, the height difference between the two reflecting layers is controlled in real time to make the micro device present different colors under the condition of natural light, thus the colors of the micro device are regulated and controlled dynamically. According to the real-time dynamic color regulation and control micro device, the method for preparing micro device and the real-time dynamic color regulation and control method, restriction of fixed size in the depth direction of the conventional microstructure array is broken, and the depth change of the microstructure can be controlled in real time by only changing the external voltage by using the inverse piezoelectric effect of a piezoelectric film material, so the colors of the micro device can be regulated and controlled dynamically without using any pigments. The real-time dynamic color regulation and control micro device is consistent with the environment-friendly theme and is expected to be widely used in the fields of optics, material science, printing industry, construction industry and the like.

A helical superconducting undulator includes a cylindrical magnetic core through which a bore hole allows the passage of charged particles. A single superconducting wire wraps the magnetic core guided by helical flights and cylindrical protrusions, to create interleaved helical windings on the magnetic core. An electrical current may be supplied to the superconducting wire to generate a periodic helical magnetic field in the bore. The helical superconducting undulator also includes a strong-back enclosure that acts as an epoxy mold during epoxy impregnation, a structural support to ensure straightness of the undulator after epoxy impregnation, and assists in cooling and thermal control of the magnetic core and superconducting wire during device operation.

The invention provides a synchrotron radiation in-situ test device for a catalyst in a fuel cell catalyst layer. The synchrotron radiation in-situ test device comprises a synchrotron radiation light source (1), a front ionization chamber, an in-situ cell and a rear ionization chamber or a fluorescent detector (7), wherein X rays emit from the synchrotron radiation light source (1) and emit onto the rear ionization chamber or the fluorescent detector (7) via the front ionization chamber and the in-situ cell. The in-situ cell comprises working electrode sides and auxiliary electrode sides; and the working electrode side is connected with the auxiliary electrode side by virtue of a through-hole mechanism and a connecting piece (15). The synchrotron radiation in-situ test device for the catalyst in the fuel cell catalyst layer provided by the invention is applicable to the electrocatalytic reaction in-situ cell for in-situ synchrotron radiation XAFS detection, so that a key technical problem of real-time detection of structural evolution of the catalyst is realized.

The invention relates to a method for measuring micro-tube density in a SiC (silicon carbide) crystal, which comprises the following steps: dividing a measured surface of the SiC crystal into a plurality of square regions and numbering the regions, wherein the area of each region is 5*5 square millimeters; taking a central point of each region as a measuring point, and microscopically measuring and recording the number of micro-tube in each viewing area, thereby acquiring the micro-tube density of the measured region, wherein the micro-tube density is equal to the number of micro-tube dividing the viewing area; and summing the number of micro-tube in all measured regions and acquiring the total number of the micro-tube on the measured surface of the SiC crystal within the viewing area, thereby acquiring the micro-tube density in the whole SiC crystal. Without using the scheme of synchronous radiation light source or corrosion, the method provided by the invention can be used for measuring by using a microscope and has the advantages of all-crystal observation, non-contact and non-destruction.

The invention discloses an ultra-long type synchrotron radiation light source foundation micro-nano level vibration control structure. The ultra-long type synchrotron radiation light source foundationmicro-nano level vibration control structure comprises a piled raft foundation, a large volume steel reinforced concrete circular foundation and a polyurethane energy dissipation vibration reductionlayer arranged between the piled raft foundation and the large volume steel reinforced concrete circular body foundation, and the large volume steel reinforced concrete circular foundation is formed by one-time casting of the whole body. The equipment foundations of the ultra-long type synchrotron radiation light source foundation micro-nano level vibration control structure have good overall stiffness, an effective energy dissipation mechanism and a convenient and fast construction procedure, and the damage to a whole engineering system caused by uneven settlement of the long-term foundationscan be effectively reduced.

The invention discloses an optical device for focusing a synchrotron radiation light source. The optical device is used for improving light intensity uniformity degree of emergent lights, increasing emittance of emergent light beams and inhibiting higher harmonics of synchrotron radiation. An outside bus of the optical device is a quadratic curve segment or a combination of a plurality of quadratic curve segments, wherein openings of the plurality of quadratic curve segments face to the same direction. The optical device comprises a plurality of capillary bodies made of transparent materials, wherein the capillary bodies arranged in the central area are of solid structures; and the capillary bodies arranged in the peripheral area outside the central area are of hollow structures.

The invention provides an X-ray speckle detecting device based on a synchrotron radiation light source, the X-ray speckle detecting device is used for detecting wavefront information of an element tobe tested, and the X-ray speckle detecting device includes the synchrotron radiation light source, a monochromator, a scatterer and a detector arranged in sequence along the direction of an optical path. The position between the monochromator and the scatterer is used for mounting the element to be tested. In addition, the present invention also provides two X-ray speckle detecting methods based on the synchrotron radiation light source, and the two X-ray speckle detecting methods use the X-ray speckle detecting device based on the synchrotron radiation light source. The X-ray speckle detecting device based on the synchrotron radiation light source is combined with theoretical methods of laser speckle detection and synchrotron radiation X-ray propagation to realize the on-line detection function of optical elements; furthermore, the device sets the element to be tested between the monochromator and the scatterer, so that the device can be applied to the on-line detection of a large non-movable reflective mirror surface while being suitable for on-line detection of small elements to be tested.

The invention discloses an electric control compression testing machine and testing method for in-situ imaging by using high-energy X-rays. A high-precision servo motor is adopted for actuation; the rotary motion of the motor is converted into the up-and-down linear motion of the lower clamp by utilizing a two-stage worm gear reducer; a sample is fixed through the upper clamp and the lower clamp,compressive stress is applied to the sample through displacement control of the lower clamp, loads and displacement borne by the sample in the testing process are collected in real time through the miniature dynamic force sensor and the laser vibrometer, and closed-loop control over the testing machine is achieved through the control unit. The testing machine disclosed by the invention is an in-situ compression material testing device which has the characteristics of high precision, large load, small size, light weight, capability of realizing monotonous compression and the like; good compatibility with a synchrotron radiation light source test platform can be realized, the requirements of a sample platform on weight and size are met, and the internal structure and typical defects of a material under various monotonous loading stress levels can be monitored in real time.

The invention relates to a storage ring dipole magnet mounting traveling crane of synchrotron radiation light source, which includes a rectangle underframe (1) and a trolley (2), rail beams (11) being two long edges of the underframe (1), a truss beam (12) being the short edge of the underframe (1) , the trolley (2) being positioned on the underframe (1) and divided into three layers, wherein the bottom layer is a longitudinal trolley (21), the middle layer is a transverse trolley (22), and the top is a slewing device (23), a longitudinal outside wheel (221) matched with the rail beam (11) and provided on the longitudinal trolley (21). The mounted storage ring dipole magnet of the invention can allow the dipole magnet to run under control along directions of X-axis, Y-axis, Z-axis and the direction of rotating around Z-axis for realizing the objects of giving way of vacuum tube, being arranged accurately in place, thus greatly increasing construction efficiency and accuracy.