141 results about "Radiation processing" patented technology

Apparatus and methods for planning and / or delivering radiation treatment and controlling a radiation delivery system are described. Apparatus for delivering radiation treatment includes a radiation source, a drive connected to move the radiation source along a trajectory, a stored radiation treatment plan specifying a plurality of beam ON segments and beam OFF portions of the trajectory interleaved with the plurality of beam ON segments, and a monitor connected to detect progress of a physiological cycle of the patient, the physiological cycle has cycles that include quiescent periods. One or more data processors are connected to control the drive to advance the radiation source along the trajectory, control the radiation source to deliver radiation in each of the plurality of beam ON segments of the trajectory and to deliver no or negligible radiation in each of the beam OFF portions of the trajectory, process an output of the monitor to estimate a time for a next one of the quiescent periods, and control a speed at which the radiation source is advanced along the trajectory to cause the radiation source to arrive at a start of a next one of the beam ON segments at a time that coincides with the next one of the quiescent periods.

The invention relates to the technical field of metal material surface treatment, and discloses an efficient anti-radiation treatment agent for magnesium alloy and a preparation method thereof.The surface treatment agent is prepared from, by weight, 8-15 parts of polydimethylsiloxane, 5-9 parts of graphene oxide, 3-6 parts of fly ash, 2-5 parts of magnetic nanoparticles, 1-3 parts of dispersing agent and 4-8 parts of nano cobalt ferrite. 2-4 parts of rare earth salt, 7-14 parts of polyaniline and 100 parts of absolute ethyl alcohol. In the treating agent, the electromagnetic shielding effect of the magnesium alloy is improved through multiple effects of polydimethylsiloxane, multi-layer graphene oxide, hollow fly ash and magnetic nanoparticles, and the absorption capacity of the magnesium alloy to electromagnetic waves is comprehensively improved by adding nano cobalt ferrite, rare earth salt and polyaniline; the electromagnetic shielding effectiveness of four different brands of magnesium alloys treated by the treatment agent under the frequency of 30-1500MHZ is more than 90dB, and excellent anti-radiation performance is realized.

The invention relates to the technical field of bamboo processing and modification treatment, and discloses a method for improving high-permeability bamboo modification, which comprises the following steps: preparing a mixed aqueous solution of 9.25-37 mmol / L of alkali compound and 9.3-27.8 mmol / L of persulfate, and dipping bamboo at normal temperature for 3-6 hours; the soaked bamboo wood is heated and activated, and the activation mode is selected from one of 60-80 DEG C constant-temperature water bath treatment, 300-550 W microwave radiation treatment or 100-400 W ultrasonic radiation treatment; and after the activated bamboo wood is cleaned to be neutral, freeze drying is conducted at the temperature ranging from-50 DEG C to-70 DEG C. According to the method, free radicals generated by alkali liquor swelling and synergistic thermal activation of persulfate are utilized, bamboo blocking pore extracts are oxidized and degraded, a fluid conduction path is dredged, the permeability and porosity of the bamboo are improved, the original mechanical strength of the bamboo is kept, and the technical problems that traditional modified liquid medicine is difficult to permeate, and a skeleton is damaged due to strong base treatment are solved.

An apparatus, system and method for treating a water supply with electromagnetic radiation are disclosed. A bio-resonance apparatus provides light pulses from light-emitting diodes (LEDs) at predefined frequencies, such reinforcing and / or interfering frequencies. The bio-resonance apparatus can be placed in a water line to provide treated water on an as needed basis. The bio-resonance apparatus is wirelessly powered and controlled. A method of extending the shelf-life of one or more vegetables comprises the use of a sprayer system which includes a bio-resonance apparatus to mist the one or more vegetables. A method of improving plant health comprises the use of a plant watering system which includes a bio-resonance apparatus to water a plant. Another method of improving plant health comprises the use of a plant washing system which includes a bio-resonance apparatus to wash a plant.

Systems and methods for determining varying phenomena in an environment. In an embodiment, an system includes a processor configured to receive a sequence of remote sensing data regarding an environment, wherein the environment comprises a target area where changes have occurred and a surrounding area where few or no changes have occurred; process the RS data to determine signals for the changes that have occurred in the target area and where no changes have occurred in the surrounding area, wherein the signals comprise reflected sunlight radiation or returned light or radiation of different wavelengths captured by the sensor; process the signals to determining environment data indicting varying phenomena in the environment, wherein the varying phenomena in the environment comprise changes in the physical characteristics of the target area and an amount of radiation captured by the RS data; and provide the environment data for display via a user device.

The invention provides a battery diaphragm preparation method, a battery diaphragm and a battery. The method comprises the following steps: providing a diaphragm substrate; providing a ceramic layer coating dispersion liquid; coating the surface of the isolating membrane base material with the ceramic layer coating dispersion liquid, and forming a ceramic layer on the surface of the isolating membrane base material; and performing radiation treatment on the ceramic layer by adopting a radiation source to obtain the ceramic coating diaphragm. A radiation polymerization mode is adopted, high-energy particle rays are radiated to a coated ceramic layer, an organic polymer is induced to generate free radicals, and a polymer adhesive obtained after cross-linking polymerization forms a larger and higher-molecular-weight polymer network. As the adhesive is higher in strength and smaller in swelling degree, the adhesive force of the ceramic layer to the isolating membrane base material is increased, and the electrolyte absorption is smaller, so that the effects of improving the cell interface and prolonging the cycle life are achieved.

This item is a personal dosimeter worn by workers in radiation handling facilities to detect radiation such as X-rays and gamma rays. The personal dosimeter consists of a main body and a clip. For example, when the main body is inserted into a breast pocket, the fabric of the breast pocket is sandwiched between the main body and the clip. A circuit board mounting a radiation detection unit and electronic circuits, etc. is provided within the main body. The radiation detection unit is located in an enlarged portion of the main body. A liquid crystal display that displays the dose rate, etc. is provided on the bottom of the main body.

The invention provides a canarium pimela fermentation process and application of a fermentation product of the canarium pimela fermentation process in wash supplies. The canarium pimela fermentation process comprises the following steps: soaking canarium pimela in hot water at 80-90 DEG C for 5-10 minutes, then removing kernels, and crushing canarium pimela pulp to obtain fruit pulp; ultraviolet rays with the wavelength of 220-260 nm and the intensity of 15-25 mW / cm < 2 > are adopted for carrying out radiation treatment on the fruit pulp, and the radiation treatment time is 40-80 min; performing mixed fermentation on the fruit pulp subjected to radiation treatment and saccharomycetes at the fermentation temperature of 20-25 DEG C for 20-30 days; and enabling the fermented product to pass through a gap of 0.05-0.15 mm under the pressure of 80-150 MPa, so as to obtain the fermented product. According to the fermentation process, a fermentation product with extremely low tannin content and high activity of effective components such as polyphenols, flavonoids and organic acids can be obtained. The fermentation product has good moisturizing and anti-oxidation effects.

The present application relates to the field of EVA modification technology, and specifically discloses a grafted EVA particle and a preparation method thereof, a pre-crosslinked grafted EVA film and a preparation process thereof, and a laminated glass lamination process. The raw materials of the grafted EVA particles include EVA, a grafting initiator, and a hydrophilic modifier; the preparation method of the grafted EVA particles is: after mixing the raw materials, add them to a screw extruder for melt extrusion and granulation; the raw materials of the pre-crosslinked grafted EVA film include grafted EVA particles, a photoinitiator, a co-crosslinking agent, and a silane coupling agent; the preparation process of the pre-crosslinked grafted EVA film is: after mixing the raw materials, add them to a screw extruder, extrude through a T-shaped flat die, cast, cool and shape after shaping, and then irradiate; the laminated glass lamination process is: vacuuming the interior of the laminated glass to be treated, heating and maintaining the temperature at 80-120°C to obtain the laminated glass after vacuum heating. The present application has the effect of improving the defect that EVA has poor hydrophilicity, which leads to the generation of fog easily after water vapor enters the laminated glass.

The present application discloses a radiation device, a powder spreading device, a 3D printing device, and a control method and device thereof. Among them, the radiation device includes a moving mechanism and a plurality of arranged energy beam emitters. The moving mechanism is used to move along the printing surface of the 3D printing device; the plurality of arranged energy beam emitters are integrally arranged on the moving mechanism, and are used to selectively radiate the powder material spread in the gap between the component platform and the printing surface of the 3D printing device according to the acquired cross-sectional image during the movement along the printing surface, so as to form a cross-sectional layer corresponding to the cross-sectional image. The present application significantly improves the printing efficiency by means of multi-point scanning, line scanning or surface projection, and the powder spreading device in the present application can integrate powder spreading, preheating and energy radiation into one, and can complete the printing of a cross-sectional layer in the process of moving along the printing surface from one side to the other, thereby effectively improving the printing efficiency.

A method for generating electron density maps of a region of interest of a subject for adaptive radiation therapy using a magnetic resonance (MR) linear accelerator (Linac) radiation treatment system includes receiving a radiation treatment plan associated with the region of interest of the subject, acquiring a plurality of projections using one or more X-ray beams from a linear accelerator and a flat panel detector of the MR-Linac system, reconstructing one or more projection images based on the one or more projections, generating one or more electron density maps based on the one or more projection images, and generating an updated radiation treatment plan associated with the region of interest of the subject based on the one or more electron density maps.

This utility model relates to the field of mold technology and discloses an irradiation processing mold that can improve the flexibility of biomedical membranes. It includes an upper mold with multiple connecting columns fixedly connected to its bottom. A lower mold is located at the bottom of the upper mold, and a template is slidably connected inside the lower mold. A demolding assembly is located at the bottom of the template, and the demolding assembly includes multiple connecting blocks. A support frame is fixedly connected to one side of the lower mold, and a worm gear is rotatably connected inside the support frame. A rotating wheel is fixedly connected to the outer wall of the worm gear. A rotating shaft is rotatably connected inside the lower mold, with support plates rotatably connected to both ends of the rotating shaft. A worm wheel is fixedly connected to the outer wall of the rotating shaft, and the worm wheel meshes with the worm gear. In this utility model, the rotating wheel pushes the template upward inside the lower mold, and the self-locking property between the worm gear and the worm wheel fixes the height of the template, achieving demolding processing of the equipment.

According to the technical scheme, the carbon fiber resin matrix composite material microwave radiation rapid treatment device is characterized by comprising a workbench, a first connecting plate is slidably connected into the workbench, microwave treatment plates are rotatably connected to the two sides of the first connecting plate correspondingly, and when the two microwave treatment plates rotate to approach, the microwave treatment plates are connected to the two sides of the first connecting plate correspondingly; when the carbon fiber resin-based plate in the cavity is combusted or exploded in the radiation treatment process, the two rubber protective films are pulled along with movement of the sealing cover, and then the top of the workbench is shielded; due to the fact that the carbon fiber resin base plate is located in the workbench and blocked by the multiple front baffles, the two side baffles and the two rubber protective films, potential safety hazards generated by explosion or combustion can be isolated in the workbench at the moment; therefore, the effect of preventing personnel injury caused by accidents during radiation treatment of the carbon fiber resin-based plate is achieved.

A cable irradiation electron accelerator is characterized in that the cable irradiation electron accelerator comprises a box body, a vacuum cavity is arranged in the box body, an irradiation mechanism is arranged in the vacuum cavity, an irradiation cavity is arranged below the vacuum cavity, a box door is arranged outside the irradiation cavity, a protective inner shell is arranged in the irradiation cavity, and a limiting groove is formed in the protective inner shell; a protective outer shell is arranged outside the protective inner shell, a limiting block is arranged on the protective outer shell, a first sliding groove is formed in the protective outer shell, an upper sealing plate is arranged in the first sliding groove, and a bearing block is arranged below the protective outer shell; the protective outer shell is connected with the protective inner shell by placing the limiting blocks into the limiting grooves of the protective inner shell, at the moment, the protective outer shell is placed on the bearing blocks, and the irradiation mechanism is wrapped by the cover body formed by the protective inner shell and the protective outer shell, so that the irradiation mechanism is closed, and the structure is simple and the operation is convenient while radiation processing is performed on the cable; and the whole equipment is convenient to disassemble and maintain.

The invention relates to a method for adjusting the gloss level of a coating on a substrate that has been reduced in gloss by radiation treatment, wherein the coating is applied by depositing a radiation-curable fluid onto the substrate, and in a treatment zone, the fluid surface is provided with increased surface waviness and a reduced gloss level by means of radiation treatment, and the fluid is at least partially cured for coating. The invention further relates to a coated substrate produced by such a method.

A process flow for bonding a die to a substrate incorporates defect risk management and yield promotion by reducing flow complexity. In some embodiments, the process flow can include a radiation process on the component substrate to weaken an adhesive bond of the die from a surface of the component substrate, a first wet clean process on the component substrate after the radiation process to clean the die bonding side, an eject and pick process after performing the first wet clean process to remove the die from the component substrate for bonding to the substrate, a plasma activation process on the substrate, a second wet clean process after the plasma activation process on the substrate to clean the substrate bonding side of the substrate, and a hybrid bonding process to bond the die bonding side of the die to the substrate bonding side of the substrate.

To provide a workpiece processing sheet which can suppress generation of a cut piece in dicing and suppress unevenness of adhesive force.SOLUTION: There is provided a workpiece processing sheet comprising: a substrate; and an adhesive layer laminated on one surface side on the substrate. The substrate is subjected to electron beam (EB) radiation processing, and the adhesive layer is constituted by an adhesive formed of an adhesive composition including a component having a benzo phenyl structure expressed by the following formula (1). (In formula (1), R1's express a hydrogen atom, or an alkyl group having C1-C18.) The content of a component having a polymerizable carbon-carbon double bond in the adhesive composition is 0.1 mass% or lower in the workpiece processing sheet.SELECTED DRAWING: None

A processor acquires a first radiation image and a second radiation image which are acquired by imaging a subject, which includes a first component consisting of a plurality of compositions and a second component consisting of a single composition, with radiation having different energy distributions, derives a characteristic of the first component related to attenuation of the radiation based on the first and second radiation images in a first component region including only the first component in the first or second radiation image, derives the characteristic of the first component in a second component region including the second component in the first or second radiation image based on the characteristic of the first component derived in the first component region around the second component region, and derives a first component image and a second component image in which the first component and the second component are emphasized, respectively, based on the characteristic of the first component in at least a region of the subject in the first or second radiation image.

The present application relates to a kind of energetic agent for component damage and its preparation method and application, belong to the technical field of self-destruction of electronic equipment.First, the addition on component meets the requirement on function, add FEP powder treated by ozone-ultraviolet radiation, further increase the oxidizability of FEP, improve the reaction activity of energetic agent, reduce the reaction threshold value, increase the reaction pressure at the same time;Add Ta, Mo and other high melting point, high density metal powder, improve the jet density of energetic agent;Add fluorine rubber, as binder and FEP together to facilitate the compaction of block material.Forming quality of block material is satisfied with self-destruction system, the requirement of energetic agent high calorific value, threshold low, with enough kinetic energy.At the same time, it is also convenient for storage, transportation and use to guarantee the forming quality of block material.

Devices and methods that allow a user to elect between performing treatment planning by inverse planning or to be accomplished by utilizing one or more parameters input that are typically associated with forward planning are described herein. The systems can be configured to produce a treatment plan in a single iteration upon initiation of treatment planning or in response to determining or receiving a target geometry. While the system may be used iteratively in an extensively interactive fashion, viable inverse plans can be generated with a single user interaction, such as a single click, or optionally with no click at all. Advantageously, the system can optionally allows a clinician to add or adjust parameters or constraints, for example in another iteration, to provide additional autonomy if desired.

Systems and methods for improved radiation treatment planning can employ hierarchical constrained optimization with relaxed constraints also referred to herein after as expedited hierarchical constrained optimization (ECHO). The systems and methods described herein employ a combination of constrained optimization and a correction loop involving unconstrained optimization to enhance the speed and efficiency of the radiation treatment planning process and improve the accuracy and quality of resulting radiation treatment plans. The use of a hierarchical constrained optimization approach leads to less complex and faster to solve optimization problems. The correction loop allows for compensating for optimization error associated with the sequence of constrained optimizations by incorporating such error in an unconstrained optimization. Hard and soft dose volume constraints can be efficiently incorporated.

The present invention discloses a highly integrated patterned printing method and application, the method comprising: 1) preparing a second substrate containing a microstructure array and subjecting it to high-energy radiation treatment; 2) dissolving a first substrate raw material in an organic solvent to prepare a first substrate containing a hydrophilic group on the surface; 3) applying stress to the first substrate in step 2) to keep the first substrate in a stretched state; 4) adding a solution containing a functional material to the surface of the first substrate in a stretched state in step 3); 5) superimposing the second substrate after radiation treatment with the first substrate to form a "sandwich" sandwich structure with the second substrate, the solution containing the functional material and the first substrate; 6) after the solvent in the "sandwich" sandwich structure evaporates, the first substrate and the second substrate are separated, and the first substrate is released to prepare a patterned array. The preparation method of the present invention is simple, green and environmentally friendly, low cost, pattern refinement and high integration.

The present invention discloses a method for repairing defects in pyrolytic carbon materials using a coupling agent. The method comprises the following steps: sintering a carbon material in an inert atmosphere to obtain a primary calcined carbon material; obtaining an embedded carbon material by electrochemical oxidation or chemical oxidation; obtaining an expanded carbon material by instant high-temperature sintering; performing radiation treatment under plasma or corona conditions, and treating the material with a mixed solution of a newly prepared coupling agent solution and an acid solution or an alkaline solution by spraying and soaking; treating the obtained filter residue with high pressure to obtain a fully grafted carbon material; and post-processing and sintering to obtain a hard carbon material embedded with nano-silicon-carbon microcrystals. The method of the present invention can achieve tight coating of the hard carbon material, and the prepared product has few surface pores, high charge and discharge coulomb efficiency, and good charge and discharge cycle stability.

This invention relates to the field of target box transportation technology after heavy water reactor irradiation. Addressing the problem that existing transportation channels cannot effectively reduce radiation exposure to personnel during the transportation of radioactive target boxes, this invention provides a target box transportation device after heavy water reactor irradiation, comprising a transportation pipe, a shielded transfer container, and a conveyor belt. A negative pressure is established within the transportation pipe to draw the target box into a vertical section. A separator is installed on the vertical section of the transportation pipe to allow the target boxes to enter the shielded transfer container one by one within a shielded box. The shielded transfer container is transported via the conveyor belt. Furthermore, this invention also provides a method for transporting target boxes after heavy water reactor irradiation, sequentially loading the target boxes from the vertical section into designated positions within the shielded transfer container in the shielded box, and completing radiation protection treatment of the target boxes within the shielded box. By loading the irradiated target boxes into a shielded working box, compared to containerized transport, the dose rate in the operation and maintenance area can be reduced from 2 mSv / h to 25 μV / h, significantly reducing the dose level for operators.

A method for delivering radiation treatment may include defining a preliminary trajectory including a plurality of control points. Each control point may be associated with position parameters of a gantry and a couch. The method may also include generating a treatment plan based on the preliminary trajectory by optimizing an intensity and position parameters of a collimator and MLC leaves for each control point. The method may also include decomposing the treatment plan into a delivery trajectory including the plurality of control points. Each of the plurality of control points may be further associated with the optimized intensity, the optimized position parameters of the collimator and the MLC leaves, an output rate, and a motion parameter of each of the gantry, the couch, the collimator, and the MLC leaves. The method may further include instructing a radiation delivery device to deliver the treatment plan according to the delivery trajectory.

This invention relates to the field of RFID antenna system technology and discloses a planar RFID antenna, comprising a processor, a transceiver module, and an RFID tag module. The RFID tag module includes a second transceiver module, a first radiating module, and a signal integration module. The first transmitting module is used to output a radio frequency signal of a certain frequency to the RFID tag antenna via an RFID reader. The first radiating module is used to radiate the acquired radio frequency signal power in the form of electromagnetic waves. The conductors in the first radiating module are arranged with two conductors spread apart by 180°. A planar array of multi-radiating plates is provided in the first radiating module to spread the electric field in the surrounding space and enhance the radiation of electromagnetic waves. The antenna of this invention enhances and radiates the radio frequency signal, improves the received frequency ratio by using an attached enhancing antenna, and matches the antenna polarization function with the interrogation signal of the reader as much as possible.

A defoamer or anti-foam formulation and a process for preparing the same. The process includes in a first step, preparing branched organopolysiloxanes (A) by irradiating organopolysiloxanes (X) of the formula (1)R13-a(R2O)aSi—[OSiR32]n—OSi(OR2)aR13-a   (1).Where with high-energy radiation, the viscosity of the organopolysiloxanes (A) is at least 40% higher than the viscosity of the organopolysiloxanes (X). In a second step, the branched organopolysiloxanes (A) are treated with a filler (B) which is selected from precipitated and / or fumed silicas, and organopolysiloxane resins (C).

The invention relates to a vacuum ultraviolet combined ultrafiltration water treatment method and device, and the method comprises the following steps: carrying out radiation treatment on to-be-treated water: simultaneously emitting dual-wavelength ultraviolet rays of 185 nm and 254 nm through a single-ended vacuum ultraviolet lamp (3), and generating hydroxyl radicals through the ultraviolet rays of 185 nm to degrade organic matters in the to-be-treated water, the water to be treated is disinfected through 254 nm ultraviolet rays; and performing ultrafiltration: filtering the water subjected to radiation treatment in the step S1 through an ultrafiltration membrane assembly (5). Compared with the prior art, the method can solve the problems of disinfection by-products, water toxicity, membrane pollution and the like caused by organic matters in the water and wastewater treatment or disinfection process, and can be used in the field of advanced treatment of drinking water and sewage.

The utility model relates to the technical field of irradiation processing, and discloses an irradiation processing device capable of endowing a biomedical membrane with antioxidation performance, which comprises a support frame, the lower surface of the support frame is fixedly connected with a fixed plate I, the inside of the fixed plate I is fixedly connected with a motor, the output end of the motor is fixedly provided with a threaded rod, and the threaded rod is fixedly connected with the support frame. And the outer wall of the threaded rod is rotatably connected with a second fixing plate, the outer wall of the threaded rod is in threaded connection with a sliding block, the interior of the sliding block is slidably connected with a limiting plate, the interior of the sliding block is fixedly connected with a rotating shaft, and an irradiation assembly is arranged on the upper surface of the supporting frame and used for irradiation. According to the utility model, the motor is started to drive the threaded rod to rotate, simultaneously drive the sliding block to slide, further drive the rotating shaft to rotate, simultaneously drive the rotating plate to rotate, simultaneously drive the sliding shaft to slide and simultaneously drive the turntable to rotate, so that the effect of adjusting the direction of the biomedical film is achieved, further the biomedical film is fully irradiated, and the irradiation efficiency is effectively improved.

The invention discloses intelligent processing equipment and method for producing rapid rice noodles by combining superheated steam and microwave radiation, and belongs to the technical field of food processing. Comprising a pre-gelatinization area I, a pre-gelatinization area II, a pre-gelatinization area III, a front transition isolation cavity, a superheated steam area, a rear transition isolation cavity, a microwave radiation area and an extrusion forming area, the preparation method comprises the following steps: taking early indica rice, washing with water to remove impurities, soaking, draining, crushing by a semi-dry method, pre-curing, performing superheated steam treatment, performing microwave radiation treatment, and performing extrusion forming, thereby obtaining the rice noodles which are boiling-resistant, easy to cook and chewy in mouth feel. Compared with the traditional rice noodles, the quick rice noodles processed by the method disclosed by the invention are short in production period and high in economic benefit. The superheated steam heat treatment efficiency is high, and the heat stability of the rice noodles can be improved. The microwave radiation treatment is uniform in heating and fast in temperature rise, so that the structure of the rice noodles is tighter. No food additive is added, and the rice noodles are quickly aged by using a superheated steam technology and a microwave radiation technology, so that the quality of the rice noodles is remarkably improved.