35 results about "Absorption radiation" patented technology

An optoelectronic semiconductor body with a semiconductor layer sequence (2) based on a lll-V compound semiconductor material is specified, wherein: - the semiconductor layer sequence (2) comprises an n-doped layer (21) doped with a group VI dopant; - the semiconductor layer sequence (2) comprises an active region (20) configured to emit and / or absorb radiation; - the semiconductor layer sequence (2) comprises an interlayer (23) between the active region (20) and the n-doped semiconductor layer (21); and - the interlayer (23) comprises phosphorus (P) and at least one further group V material, preferably arsenic (As). An optoelectronic semiconductor chip (1) comprising the same is also specified. Finally, methods of producing the same are also specified.

The present disclosure includes a multi-fluid kit for three-dimensional printing. The multi-fluid kit can include a fusing agent comprising water and a radiation absorber that absorbs radiation energy and converts the radiation energy to heat, an acidic agent having a pH from about pH 1 to about pH 6.9 that includes water and an acidic component, and a pore-promoting agent including water and a pore-promoting compound. The pore-promoting compound can chemically react with the acidic component to generate a gas, and can be selected from sodium bicarbonate, potassium bicarbonate, or a combination thereof.

This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a first reactive agent, and a second reactive agent. The fusing agent can include water and a radiation absorber. The radiation absorber can absorb radiation energy and convert the radiation energy to heat. The first reactive agent can include water and a dissolved first pigment reactant. The second reactive agent can include water and a dissolved second pigment reactant. The second pigment reactant can be reactive with the first pigment reactant to form a water-insoluble pigment.

A mirror arrangement, such as for a lithography system, comprises: a plurality of mirror elements for reflecting radiation; a plurality of carrier elements, which each carry one of the mirror elements; and a mount arrangement having insert openings formed in each case to accommodate a respective one of the carrier elements, with the plurality of carrier elements, which each carry one of the mirror elements, being accommodated in the insert openings of the mount arrangement. For absorbing radiation, at least one of the insert openings does not accommodate a carrier element and / or, for absorbing radiation, at least one of the insert openings accommodates a dummy carrier element which does not carry a mirror element.

The utility model discloses a radiation protection robot and back scattering inspection equipment. The radiation protection robot includes: a first wheel disposed at a bottom of the radiation protection robot to allow the radiation protection robot to move; a shielding device capable of reflecting and / or absorbing radiation; and a plurality of radiation sensors for sensing radiation. A plurality of radiation sensors are mounted in a plurality of orientations on an outer periphery of a radiation protection robot so as to be able to receive radiation irradiated toward the radiation protection robot from any direction around the radiation protection robot. The radiation protection robot is configured to move through self-driving of the first vehicle, so that the radiation protection robot moves towards an area where the radiation dose value sensed by the radiation sensor is increased, and radiation propagation is shielded through the shielding device.

Method for producing an optoelectronic semiconductor component (100) comprising the steps: A) Providing a semiconductor chip (1) produced by singulating a wafer, wherein - the semiconductor chip (1) comprises a substrate (10) and a semiconductor layer sequence (11) with an active layer (12) applied to a main side (110) of the substrate (10), - the semiconductor layer sequence (11) has exactly one active region (13) for the emission or absorption of radiation and a sacrificial region (14) arranged next to it in the direction parallel to the main side (110), - the sacrificial region (14) on the finished semiconductor component (100) is not intended for the emission or absorption of radiation, - a trench (15) introduced into the semiconductor layer sequence (11) penetrates the active layer (12) and separates the active region (13) from the sacrificial region (14), - the active layer (12) is formed continuously within the active region (13); B) applying the semiconductor chip (1) with the semiconductor layer sequence (11) first onto a carrier (2); C) detaching the substrate (10) from the active region (13) of the semiconductor layer sequence (11), wherein in the sacrificial region (14) the semiconductor layer sequence (11) remains mechanically connected to the substrate (10); D) subsequently finally separating the substrate (10) from the semiconductor layer sequence (11) by detaching the substrate in the sacrificial region (14).

A three-coil gas flue gas turbulent heat exchange device and method of the present invention. The device takes a burner, an inner layer disc tube, a middle layer disc tube, and an outer layer flat coil tube as the main body, and adopts a three-layer coil design of inner, middle, and outer layers. The smooth tube coils of the inner and middle layers are arranged in a staggered manner to form a radiation-closed furnace chamber. The outer layer uses a flat coil tube to cool and condense the flue gas, effectively improving the thermal efficiency of the boiler. While cooling and condensing the flue gas, the viscous resistance of the flue gas is increased, so that the flow state of the flue gas changes from turbulent flow to laminar flow, increasing the heat transfer coefficient and enhancing the flue gas cooling and condensing ability. Moreover, the inner layer disc tube and the middle layer disc tube are arranged in a staggered manner to form a radiation-closed furnace chamber. According to the radiation fourth power law, the flue gas discharged from the burner can absorb a large amount of radiant heat. Compared with the current one-pass flat coil heat exchange wall in service, the manufacturing process is simpler, the heat exchange coil is more compact, and the cost is lower.

The present invention provides a radiation shield and radiation protective eyewear that can reduce the amount of X-rays absorbed by the lens of the eye of the operator performing the X-ray fluoroscopy examination during the examination process. [Solution] The radiation shield 100 of the present invention is a radiation shield to be attached to eyeglasses, and comprises a flexible sheet 101 containing a material that absorbs radiation, a shape-retaining member 102 that holds the sheet 101 in a predetermined three-dimensional shape, and a fixing means 103 that allows the sheet 101 to be attached and fixed to one temple of the eyeglasses.

The utility model discloses a self-shielding electron accelerator, which relates to the technical field of electron accelerators, solves the problems of poor anti-radiation effect and inconvenience in assembly and disassembly of the existing device, and adopts the following scheme that the top surface of a vertical plate is provided with a side plate of which the specification is matched with that of the vertical plate. Through the arrangement of the side plates, the water tank and the anti-radiation shielding cloth, the side plates and the top plate made of steel plates can shield radiation on the side faces and the top face, the anti-radiation shielding cloth can shield radiation on the left side and the right side, the water tank on the bottom face can absorb a large amount of radiation, and the radiation shielding effect is good; meanwhile, through the arrangement of the mounting holes A, the threaded holes A and the mounting holes C, the mounting holes A and the mounting holes B can facilitate the mounting of the bottom plate and the vertical plate, the threaded holes A and the threaded holes B facilitate the mounting of the side plate, the mounting holes C and the mounting holes D facilitate the mounting of the top plate, the mounting and dismounting are simple and convenient, and the use convenience is improved.

Disclosed herein is a radiation detector (100), comprising: an electronics layer (120) comprising a first set of electrical contacts (118A) and a second set of electrical contacts (118B); a radiation absorbing layer (110) configured to absorb radiation; a semiconductor substrate (103), a portion of the semiconductor substrate (103) extending into the radiation absorbing layer (110) along its thickness direction, the portion forming a first set of electrodes (119A) and a second set of electrodes (119B); wherein the first set of electrodes (119A) and the second set of electrodes (119B) interdigitate with each other; wherein the semiconductor substrate (103) comprises a p-n junction separating the first set of electrodes (119A) from the second set of electrodes (119B); wherein the electronics layer (120) and the semiconductor substrate (103) are bonded such that the first set of electrodes (119A) is electrically connected to the first set of electrical contacts (118A), and the second set of electrodes (119B) is electrically connected to the second set of electrical contacts (118B).

This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of testing powder bed material for contamination. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a detector solution. The fusing agent can include water, an electromagnetic radiation absorber, and a first pigment reactant. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The detector solution can include water and a second pigment reactant. The second pigment reactant can be reactive with the first pigment reactant to form a colored pigment.

This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of sensing metal ions using three-dimensional printed ion sensors. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and an ion-sensing agent. The fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ion-sensing agent can include water and a redox-active inorganic salt.

Disclosed herein is a spectroscopy device incorporating a mid-infrared laser. In one particular embodiment a spectroscopy device is provided including: a substrate; a single mode laser positioned on the substrate; a single mode detector positioned opposite to the single mode laser on the substrate. A gap is formed between the single mode laser and the single mode detector and a substance is positioned in the gap. The single mode laser is configured to output a tunable narrow wavelength of radiation towards the detector and when the single mode laser outputs a wavelength of radiation overlapping one of the substance's rotational-vibrational energy levels, the substance at least partially absorbs the radiation. The single mode detector is configured to measure the amount of narrow wavelength radiation that is not absorbed by the substance between the single mode detector and the single mode laser.

The utility model relates to the technical field of electronic information, in particular to an anti-radiation displayer device which comprises a protection structure used for improving brightness and a heat dissipation structure used for reducing heat of a displayer, the heat dissipation structure is installed in a displayer body, and a clamping block is fixedly connected to the outer side of the displayer body. And a supporting plate is arranged at the bottom of the clamping block. Basic support can be provided through the supporting layer, the fiber layer enhances the structural strength and possibly has the conductive or shielding characteristic, the protective layer adopts an ITO film to achieve electromagnetic shielding, the absorption layer absorbs radiation energy through a polypropylene material, and the dispersion layer disperses residual radiation energy through polyvinyl chloride. The protection structure can effectively shield and absorb electromagnetic radiation through a multi-layer material, the problem that the electromagnetic radiation has adverse effects on a display and a user can be solved by optimizing the protection structure, the use safety can be improved, and the health of the user can be protected.

A high detectivity infrared and terahertz sensing using a silicon nitride (SiN) nanomechanical resonator functionalized with an optical absorber. The membrane resonator is actuated by a piezo actuator and interrogated by an interrogation laser to determine the intensity of an incident light source. High performances are achieved by striking a fine balance between the frequency stability of the resonator, and its responsivity to absorbed radiation.

An electric arc simulation method based on a reabsorption process comprises the following steps: current passes through gas to generate an electric arc; monitoring temperature distribution data of the electric arc in real time; determining an absorption state area of a radiation absorption part and a radiation state area of a radiation emission part in the arc based on the temperature distribution data; and setting absorbed heat in the absorption state area and setting radiated heat in the radiation state area so as to correct an electric arc simulation result.

The invention discloses an optical frequency conversion chip and a preparation method thereof, and a reflective optical frequency conversion system, and relates to the technical field of semiconductors, the optical frequency conversion chip comprises a silicon substrate and a plurality of pixel units arranged on the surface in an array; each pixel unit comprises a supporting structure and a radiation absorption layer; the supporting structure comprises a contact layer and two supporting legs; the radiation absorption layer is located on the surface of the side, back on to the silicon substrate, of the contact layer, the projection of the contact layer on the silicon substrate completely covers the projection of the radiation absorption layer on the silicon substrate, and an interval space exists between the contact layer and the silicon substrate; the contact layer is connected with the supporting leg, and the supporting leg is located on the first surface of the silicon substrate and located on the side of the contact layer relative to the vertex angle; and the pixel units are S-shaped. The problem that the apparent temperature is reduced due to the fact that the resolution ratio of a chip is low and the heat dissipation surface of the pixel is large and the temperature is difficult to rise is solved, the temperature rise speed of the pixel unit can be increased, thermal crosstalk between adjacent pixels is reduced, and the refresh frequency, the resolution ratio and the apparent temperature of an image are increased.

An arc simulation method based on a reabsorption process, in which current is passed through a gas to generate an arc; temperature distribution data of the arc is monitored in real time; an absorption state region of a radiation-absorbing portion and a radiation state region of a radiation-emitting portion in the arc are determined based on the temperature distribution data; and the amount of heat absorbed in the absorption state region and the amount of heat radiated in the radiation state region are set to correct the arc simulation results.

The invention provides a gas remote sensing infrared characteristic calculation method and device. The technical problems that an existing high-temperature gas emission radiation long-distance transmission characteristic is huge in calculation amount and errors are not easy to overcome are solved through a broadband k distribution model based on atmospheric transmissivity weighting. The method comprises the following steps: establishing an atmospheric transmissivity weighted broadband k distribution model by using atmospheric transmissivity as an emission item influence factor of a gas internal spectral radiation transfer equation, and avoiding the reduction of calculation precision caused by uncorrelated k characteristics between a carrier hydrocarbon fuel gas wake flow absorption radiation spectrum and an atmospheric absorption radiation spectrum. A gas long-distance infrared characteristic calculation model which is small in calculation amount, high in calculation precision and good in compatibility is formed, and the requirements for precision and efficiency of numerical simulation of turbulent flow tail jet flow infrared remote sensing characteristics of a hydrocarbon fuel carrier and a complex structure exhaust system of the hydrocarbon fuel carrier can be met.

The invention relates to a sensor device (1) comprising a detection surface (4) having a plurality of detection regions (40) arranged next to one another and provided for absorbing radiation, and an optical device (2) covering the detection surface (4) when viewed in a vertical direction running perpendicular to the detection surface (4), the optical device (2) comprising a plurality of optical device channels (20) arranged next to one another; -each optical channel (20) is associated with an input optical device (21), an output optical device (22) and a diaphragm opening (30), wherein the output optical device (22) is arranged between the input optical device (21) and the detection surface (4); -the input optics (21) each image at least a part of the measurement field into an image plane (29); -the diaphragm opening (30) is arranged in the image plane (29); and-the output optics (22) image the radiation transmitted by the associated diaphragm opening (30) onto the detection surface (4).

The present disclosure includes a multi-fluid kit for three-dimensional printing. The multi-fluid kit can include a fusing agent including water and a radiation absorber that absorbs and converts radiation energy into heat, an acidic agent including water and an acidic component having a pH of about pH 1 to about pH 6.9, and a porosity promoter including water and a porosity promoting compound. The porosity promoting compound can chemically react with the acidic component to generate a gas, and can be selected from sodium bicarbonate, potassium bicarbonate, or a combination thereof.

Provided in the present disclosure are a radiation protection robot and a backscatter inspection apparatus. The radiation protection robot comprises: a first wheel enabling the radiation protection robot to move; a shielding device capable of reflecting and / or absorbing radiation; and radiation sensors configured to sense the radiation. The radiation protection robot is configured to move, by means of the first wheel, towards an area where a radiation dose value sensed by the radiation sensors increases, and to block the propagation of the radiation by means of the shielding device.

A solar thermal collector adapted to be assembled from a flat pack configuration, comprising a conduit (6) configured to carry fluid and to absorb radiation, a base (1) above which the conduit (6) is mounted and a plurality of panels configured to interconnect with the base (1) to produce a housing (8) for the conduit (6).

This application discloses a multi-scene, thermal and moisture-comfortable functional knitted fabric, comprising a fabric body, wherein the fabric body includes at least two yarns: (1) Y1 the first yarn (denier D1, filament F1) and (2) Y2 the second yarn (denier D2, and filament F2), and one of the yarns is a light-absorbing heat-generating yarn; Y1 the denier of the first yarn is inconsistent with Y2 the denier of the second yarn, and it is divided into roving yarn and spun yarn; the roving yarn and the spun yarn are made of DThick:DFine≥1.2, FThick:FFine≤0.9 yarn (ie: high-filament yarn The thread has a small denier); and the roving yarn and the spun yarn in a unit cycle organization are arranged at intervals of the ratio of 2.0≥mthick:nfine≥0.3, and mthick≤2.0, nfine≤6.0 (In the formula, m is a yarn with a thick denier and n is a yarn with a fine denier); woven into a thermal comfort function that can absorb and convert radiation energy into heat energy and the one way transfer capacity on both sides of the liquid water fabric (OWTC)≥100% of the fast-drying fabric body. This application has the following different functions during the wearing process: in the low metabolism stage, it reduces the heat loss in the form of radiation, and converts it into heat energy to improve the warmth retention effect; in the high metabolism stage, the differential moisture conduction of the fabric facilitates the sweat from the body surface Drain to the surface of the fabric, increase the dryness of the fabric inner bottom, and increase the evaporation rate of liquid water; in the recovery stage after exercise, the use of differential moisture conduction and increasing the fabric temperature are more conducive to shorten the drying process of the fabric to reduce the uncomfortable feeling of wet and cold after exercise.

A finite element modeling method for an arc based on a reabsorption process, wherein current passes through a gas to generate an arc, and temperature distribution data of the arc is monitored in real time; finite element modeling of the arc is performed, and a two-dimensional longitudinal plane segmentation diagram is drawn with the arc center direction as the x-axis and the y-axis perpendicular to the arc center direction, and the interior of the arc is divided into multiple triangular mesh units, wherein unit attributes include the coordinates of three nodes, the geometric center coordinates of the unit, and the average temperature of the unit; radial units at predetermined positions of the arc are sorted; based on the sorting and temperature distribution data, the unit is determined to be an absorbing state region of a radiation absorbing part or a radiating state region of a radiation emitting part; the absorbed heat is set in the absorbing state region and the radiated heat is set in the radiating state region to correct the arc simulation results.

The utility model relates to the technical field of high-precision X-ray protection, in particular to a radiation protection device of a high-precision X-ray sensitive component, which comprises a base, a loading plate, a connecting seat, a ray tube and a ray head, the loading plate is fixedly connected with the upper end of the base, the connecting seat is fixedly connected with the upper end of the base, and the ray tube is fixedly connected with the connecting seat. The ray tube is located at the upper end of the connecting base, the ray head is located on the side face of the ray tube, and a protection device is arranged on the surface of the carrying plate. According to the utility model, through the arrangement of the protection device, materials are effectively shielded, the effect of preventing equipment rays from being refracted on the surfaces of the materials is achieved, when the existing equipment is used, the rays are generally irradiated on the surfaces of objects, but the irradiation angles and the surfaces of the objects are smooth; the problems that irradiation rays are prone to refraction to irradiate observers, the observers easily absorb radiation for a long time, and the health of the observers is damaged are solved, and the use convenience is greatly improved.

The present invention provides a solar thermal collector adapted to be assembled from a flat pack configuration, comprising a conduit configured to carry fluid and to absorb radiation; and a column configured to support the conduit, the column comprising guides for securing the conduit in place such that the conduit forms a coil, wherein the spacing of the guides means that adjacent portions of the conduit are not in contact with one another, and wherein over 80% of the space between adjacent portions of the conduit does not align with a space between adjacent portions of the conduit on the diametrically opposite side of the coil.

The application discloses an optical frequency conversion chip and a preparation method and a reflection type optical frequency conversion system thereof, and relates to the technical field of semiconductors.The optical frequency conversion chip comprises a silicon substrate and a plurality of pixel units arranged in an array on the surface;each pixel unit comprises a support structure and an absorbing radiation layer;the support structure comprises a contact layer and two support legs;the absorbing radiation layer is located on the surface of the side of the contact layer away from the silicon substrate;the projection of the contact layer on the silicon substrate completely covers the projection of the absorbing radiation layer on the silicon substrate;there is a spacing space between the contact layer and the silicon substrate;the contact layer is connected with the support legs;the support legs are located on the first surface of the silicon substrate and on the side of the opposite top corners of the contact layer;the pixel unit is S-shaped.The application solves the problem that the chip resolution is low, the heat dissipation surface of the pixel is large, and the apparent temperature is reduced due to the difficulty in heating, can improve the heating speed of the pixel unit, reduce the thermal crosstalk between adjacent pixels, and improve the refresh frequency, resolution and apparent temperature of the image.

The invention relates to the technical field of fine microelectronic manufacturing, in particular to an oxygen transmission module shielding case convenient to install, which comprises a filtering mechanism, the filtering mechanism comprises a filtering sleeve, a shielding case mechanism is arranged in the device, a shielding case left shell and a shielding case right shell are connected through a rectangular buckle and a rectangular clamping groove, and an oxygen transmission module is clamped in the shielding case mechanism. Then the output circuit board is clamped into a bottom groove of the shielding case mechanism, the connection tightness of the shielding case mechanism is enhanced, the module is connected to the connecting circuit board through the supporting feet, the module and the connecting circuit board can clamp the shielding case mechanism, and joint installation of the oxygen transmission module and the shielding case mechanism is achieved; radiation generated during operation of the oxygen transmission module firstly reaches the filter plates, the plurality of sheet-shaped filter plates absorb the radiation, the radiation is further isolated through the subsequent shielding cover and the silver coating, the shielding cover mechanism reversely isolates interference and radiation of the outside to the oxygen transmission module, and meanwhile, the sheet-shaped structures of the filter plates facilitate heat absorption and heat dissipation.

According to the low-noise monolithic integrated fiber-optic gyroscope, an isolator is arranged between a light source and a lithium niobate chip, and an input optical waveguide, an output optical waveguide, the light source and a detector are obliquely coupled, so that a resonant cavity effect is effectively blocked; direct coupling between a light source and a detector is reduced by adopting staggered arrangement between the light source and the detector, and radiation mode components are absorbed by depositing an absorption layer structure such as polycrystalline silicon or a gallium nitride thin film on the surface of a lithium niobate chip. Optical noise caused by various factors such as reflection, a resonant cavity effect and a radiation mode can be effectively reduced, and the signal-to-noise ratio of a measurement signal is improved.