122 results about "Continuous irradiation" patented technology

A beam extraction process (interruption and restart) is appropriately performed when a failure occurs during irradiation of a spot group. A charged particle irradiation system includes a synchrotron 12 and a scanning irradiation unit 15 that scans an ion beam extracted from the synchrotron over a subject. The extraction of the ion beam from the synchrotron is stopped on the basis of a beam extraction stop command. Scanning magnets 5A and 5B are controlled to change a point (spot) to be irradiated with the ion beam, while the extraction of the ion beam is stopped. The extraction of the ion beam from the synchrotron is restarted after the change of the spot to be irradiated. When a relatively minor failure in which continuous irradiation would be possible occurs during irradiation of a certain spot with the beam, the extraction of the beam is not immediately stopped.

Laser lift off systems and methods may be used to provide monolithic laser lift off with minimal cracking by reducing the size of one or more beam spots in one or more dimensions to reduce plume pressure while maintaining sufficient energy to provide separation. By irradiating irradiation zones with various shapes and in various patterns, the laser lift off systems and methods use laser energy more efficiently, reduce cracking when separating layers, and improve productivity. Some laser lift off systems and methods described herein separate layers of material by irradiating non-contiguous irradiation zones with laser lift off zones (LOZs) that extend beyond the irradiation zones. Other laser lift off systems and methods described herein separate layers of material by shaping the irradiation zones and by controlling the overlap of the irradiation zones in a way that avoids uneven exposure of the workpiece. Consistent with at least one embodiment, a laser lift off system and method may be used to provide monolithic lift off of one or more epitaxial layers on a substrate of a semiconductor wafer.

A method for modifying the refractive index of an optical polymeric material. The method comprises continuously irradiating predetermined regions of an optical, polymeric material with femtosecond laser pulses to form a gradient index refractive structure within the material. An optical device includes an optical, polymeric lens material having an anterior surface and posterior surface and an optical axis intersecting the surfaces and at least one laser-modified, GRIN layer disposed between the anterior surface and the posterior surface and arranged along a first axis 45° to 90° to the optical axis, and further characterized by a variation in index of refraction across at least one of at least a portion of the adjacent segments and along each segment.

A radiographic image capturing system includes a radiographic image capture device, a radiation irradiation device, and a control device. The radiographic image capture device is capable of wired and wireless communications, and is capable of fluoroscopic imaging in which radiographic images are successively captured at notified synchronization timings or at a predetermined frame rate. The radiation irradiation device irradiates radiation toward the radiographic image capture device during fluoroscopic imaging, with continuous irradiation or pulse irradiation. The control device includes a wireless communication unit, a wired communication unit, and a controller that, if communication with the radiographic image capture device is performed by the wireless communication unit, prohibits fluoroscopic imaging with pulse irradiation in which the synchronization timings are notified to the radiographic image capture device and radiation is irradiated from the radiation irradiation device in pulses matching the notified synchronization timings.

Laser lift off systems and methods may be used to provide monolithic laser lift off with minimal cracking by reducing the size of one or more beam spots in one or more dimensions to reduce plume pressure while maintaining sufficient energy to provide separation. By irradiating irradiation zones with various shapes and in various patterns, the laser lift off systems and methods use laser energy more efficiently, reduce cracking when separating layers, and improve productivity. Some laser lift off systems and methods described herein separate layers of material by irradiating non-contiguous irradiation zones with laser lift off zones (LOZs) that extend beyond the irradiation zones. Other laser lift off systems and methods described herein separate layers of material by shaping the irradiation zones and by controlling the overlap of the irradiation zones in a way that avoids uneven exposure of the workpiece. Consistent with at least one embodiment, a laser lift off system and method may be used to provide monolithic lift off of one or more epitaxial layers on a substrate of a semiconductor wafer.

A radiographic image capturing system includes a radiographic image capture device, a radiation irradiation device, and a control device. The radiographic image capture device is capable of wired and wireless communications, and is capable of fluoroscopic imaging in which radiographic images are successively captured at notified synchronization timings or at a predetermined frame rate. The radiation irradiation device irradiates radiation toward the radiographic image capture device during fluoroscopic imaging, with continuous irradiation or pulse irradiation. The control device includes a wireless communication unit, a wired communication unit, and a controller that, if communication with the radiographic image capture device is performed by the wireless communication unit, prohibits fluoroscopic imaging with pulse irradiation in which the synchronization timings are notified to the radiographic image capture device and radiation is irradiated from the radiation irradiation device in pulses matching the notified synchronization timings.

A calibration method to calibrate a substrate table position in a lithographic apparatus, the method including repeatedly irradiating a pattern onto a surface of the substrate so as to create a two dimensional arrangement of patterns on the surface of the substrate, the irradiating including displacing the substrate table between successive irradiations to irradiate the pattern onto different locations on the surface of the substrate, reading out the patterns in the two dimensions to obtain pattern read out results, deriving incremental position deviations from the read out results of neighbouring patterns in dependency on the position of the substrate table in the two dimensions, deriving from the incremental position deviations a position error of the substrate table as a function of the two dimensional position of the substrate table and calibrating the position of the substrate table using the position dependent position error.

A radiographic image capturing system includes a radiographic image capturing device, a radiation irradiating device, and a control device. The radiographic image capturing device is capable of performing fluoroscopic imaging, and carries out capturing of radiographic images continuously. The radiation irradiating device performs continuous irradiation or pulse irradiation with respect to the radiographic image capturing device at a time of fluoroscopic imaging. The control device has a controller that effects control such that, in a case in which a frame rate of fluoroscopic imaging is low, the radiation irradiating device performs fluoroscopic imaging by the continuous irradiation with respect to the radiographic image capturing device.

This invention relates to an optical film cutting method which includes cutting an optical film by irradiating the optical film with a laser beam under conditions that an energy per unit length is 0.12 to 0.167 J / mm and that a continuous irradiation time is 0.1 msec or less; as well as to an optical film that is cut by the cutting method and has a size of a raised part generated on a cutting surface thereof of 30 [mu]m or less. According to the optical film cutting method of this invention, it is possible to maintain the raised part size on the optical film cutting surface as small as possible even in the case where the laser beam has characteristics of a gaussian beam, thereby enabling prevention of bonding defect and optical defect when the optical film is incorporated into various optical panels.

The invention discloses a tomographic imaging method based on an aplanatic super-structured lens, namely a chromatographic imaging technology utilizing wavelength coding based on a super-structured aplanatic lens. A light source probe (1), the aplanatic super-structured lens (2), a linear polarizer (3) and a quarter-wave plate can be taken as auxiliary optical elements to be inserted into an imaging system for directly improving a signal-to-noise ratio; a photoreceptor (5) is arranged on the imaging surface and is used for receiving an image; through relatively continuous irradiation of different wavelengths, the image surface information of wavelength coding is acquired, and then the tomographic image information of an object is obtained through a corresponding algorithm. According to themethod, a design principle of a super-structure surface is adopted, and the control of the color difference and the correction of the spherical aberration are realized by utilizing the phase.

A beam extraction process (interruption and restart) is appropriately performed when a failure occurs during irradiation of a spot group. A charged particle irradiation system includes a synchrotron 12 and a scanning irradiation unit 15 that scans an ion beam extracted from the synchrotron over a subject. The extraction of the ion beam from the synchrotron is stopped on the basis of a beam extraction stop command. Scanning magnets 5A and 5B are controlled to change a point (spot) to be irradiated with the ion beam, while the extraction of the ion beam is stopped. The extraction of the ion beam from the synchrotron is restarted after the change of the spot to be irradiated. When a relatively minor failure in which continuous irradiation would be possible occurs during irradiation of a certain spot with the beam, the extraction of the beam is not immediately stopped.

The invention relates to a device and a method for coloring red Chinese sand pears after harvesting, and the method comprises the following steps: standing the Chinese sand pears which achieve the physiological maturity stage and are not colored under an environment with UV-B (ultraviolet-B) luminous intensity of 1-2 mu mol.m-2.s-1, luminous intensity of white light of 3-4 mu mol.m-2.s-1, average temperature of 25-29 DEG C, and average relative humidity of 55-75% for 5-10 days. The device comprises a closed storage room for placing the Chinese sand pears, wherein an UV-B light source and a white light source are mounted at the top of the storage room, a temperature control device and a humidification device are mounted on the side wall, and a ventilation opening is arranged at the bottom. After the Chinese sand pears are harvested, the Chinese sand pears are placed in the environment with the controllable temperature and the humidity, the fruits with relatively sufficient, stable and uniform coloring can be obtained by performing continuous irradiation under the artificial light source for a period of time, and the device and the method are specially used for promoting the coloring of the red Chinese sand pears, and can promote the synthesis of anthocyanin in the red Chinese sand pears in a quicker manner and improve the appearance quality.

The invention discloses a laser flattening method for a micro-deformed plate, wherein the laser heating effect is utilized to flatten the micro-deformed plate. According to the deformation form of theplate, different laser scanning paths are planed, the flattening angle needed by each path is determined, and the mapping relation between the angle and the highest temperature of single flattening and the laser power, the scanning speed and the scanning interval is established, according to a needed bending angle, appropriate technological parameters are selected, rapid detection is conducted toverify the effectiveness of the flattening technology, and the needed effective technological parameters are determined; the piece to be flattened is placed on a three-dimensional numerical control platform, a laser beam conducts continuous irradiation according to the planed scanning path at the selected technological parameters, the plate is made to be bent and deformed, and finally the micro-deformed plate is flattened. The laser flattening method for the micro-deformed plate is suitable for flattening the deformed plates which are complicated in shape and high in hardness and brittlenessand has large application prospect in the aerospace field and the microelectronics field.

The invention discloses a constant-tension sheet storage device. The constant-tension sheet storage device comprises a rack, wherein synchronous chain wheel shafts are arranged at the two sides of each of upper and lower ends of the rack; synchronous chains are correspondingly connected between the two ends of the synchronous chain wheel shaft at the upper end and the two ends of the synchronous chain wheel shaft at the lower end; an upper slide roll set and a lower slide roll set are further mounted on the rack by virtue of four synchronous chains; a plurality of guide wheels are arranged on the upper and the lower slide roll sets; and the upper and the lower slide roll sets can oppositely move or reversely along with positive-negative rotation of the synchronous chain wheel shafts. The constant-tension sheet storage device solves problems such as a tension control problem in production of irradiation products, an equipment structure problem, an irradiation product range problem, a problem that product quality is affected, and the like while solving the tension problem in a continuous irradiation production process.

A method for configuring J electromagnetic radiation sources (J≧2) to serially irradiate a substrate. Each source has a different function of wavelength and angular distribution of emitted radiation. The substrate includes a base layer and I stacks (I≧2; J≦I) thereon. Pj denotes a same source-specific normally incident energy flux on each stack from source j. In each of I independent exposure steps, the I stacks are concurrently exposed to radiation from the J sources. Vi and Si respectively denote an actual and target energy flux transmitted into the substrate via stack i in exposure step i (i=1, . . . , I). t(i) and Pt(i) are computed such that: Vi is maximal through deployment of source t(i) as compared with deployment of any other source for i=1, . . . , I; and an error E being a function of |V1−S1|, |V2−S2|, . . . , |VI−SI| is about minimized with respect to Pi (i=1, . . . , I).

The invention utilizes a flat plate photobioreactor integrating a fuel battery to integrate microalgae high-density culture and irradiation hydrogen production so as to form an integrative hydrogen production system. Two sections of processes of microalgae culture and photosynthetic hydrogen production are generally divided in space time, and the cultured low-density frustule needs to be concentrated and then irradiated to produce hydrogen, so that the operations need to be respectively carried out in two photobioreactors. In the microalgae hydrogen production of the invention, the low-density microalgae is inoculated into a reactor, a culture mode of enriching carbon dioxide is utilized, the biomass required by the hydrogen production can be reached by short-term culture, then dark induction is carried out, and the operation can enter a continuous irradiation hydrogen production stage. The generated hydrogen gas can be integrated into a fuel battery on a reactor and is converted into electric energy, and the hydrogen production condition can be monitored at real time by the change of current. The invention combines the two sections of processes of the microalgae culture and the hydrogen production for the first time, utilizes the fuel battery to convert the hydrogen into the electric energy and provides reliable technical support for the large-scale microalgae hydrogen production.

The invention discloses large tow polyacrylonitrile pre-oxidized fiber, large tow carbon fiber, and preparation methods of the large tow polyacrylonitrile pre-oxidized fiber and the large tow carbon fiber. The preparation method of the large tow polyacrylonitrile pre-oxidized fiber comprises: 1, after an electron accelerator is turned on, carrying out a continuous irradiation reaction on large towpolyacrylonitrile fiber, wherein the irradiation absorption dose rate is 50-2*10<6> Gy / s, and the total irradiation absorption dose is 20-3000 kGy; and 2, carrying out pre-oxidation on the irradiatedlarge tow polyacrylonitrile fiber for 15-75 min at a temperature of 180-280 DEG C so as to obtain the large tow polyacrylonitrile pre-oxidized fiber, wherein the large tow polyacrylonitrile pre-oxidized fiber is carbonized to obtain the carbon fiber. According to the present invention, with the preparation method, the heat release during the pre-oxidation of the polyacrylonitrile fiber can be significantly reduced, the pre-oxidation temperature can be reduced, the energy consumption can be reduced, and the oxygen is introduced so as to solve the oxygen diffusion problem and reduce the pre-oxidation time; and the large tow polyacrylonitrile pre-oxidized fiber has advantages of high density and high strength, and the subsequently-prepared carbon fiber material has excellent performance.

The present invention discloses a catalytic chain transfer polymerization method of methyl methacrylate. It is characterized by that said method includes the following steps: adding methyl methacrylate and solvent, the described solvent is selected from toluene, 2-butanone and methyl alcohol, in the presence of initiator and catalytic chain transfer agent using microwave to make continuous irradiation, reaction temp. is 40-70 deg.C and reaction time is above 1.5 min. and the weight ratio of monomer methyl methacrylate and catalyst is 10 to the power 7:1-10 to the power 5:1. The adoption of said method cna make the chain transfer constant of catalytic chain transfer agent by high, and its reaction speed be obviously raised.

A subject information obtaining apparatus includes a probe including a receiver that receives an acoustic wave to be converted to an electric signal and first and second irradiation units that irradiate mutually different areas on a subject surface with pulsed light, a control unit that controls illumination positions of the pulsed light to avoid continuous irradiation of the subject with the pulsed light from the first and second irradiation units, and a signal processing unit that performs averaging or integrating of electric signals derived from the pulsed light illuminated from the first and second irradiation units and obtains a characteristic distribution in the subject by using the averaged or integrated signal or performs combining of distributions obtained by using electric signals derived from the pulsed light illuminated from the first and second irradiation units and obtains a combined distribution as the characteristic distribution in the subject.

The invention discloses a testing method for a single event effect of a 3D (Three Dimensional) stacked storage. The method comprises four test modes, including a static mode, a dynamic read mode, a dynamic read / write mode and a dynamic read / wipe / write mode. The method comprises the following steps: judging SEU in the static mode; judging SEL, SEU and SEFI in three dynamic modes; in the dynamic read / write mode, requiring to rewrite data after the SEU and the SEFI occur and before a continuous irradiation test is performed; in the dynamic read / wipe / write mode, wiping error cell data after the SEU and the SEFI occur and before the continuous irradiation test is performed and rewriting the data. By comparing the three dynamic modes, general conditions of the single event effect, which possiblyoccur in separately-write and separately-wipe process can be obtained, the consideration is more comprehensive and more accurate, data are provided for screening space applications of a high-capacitystorage device and reinforcing the single event effect.

The invention discloses a rectal suppository irradiation light source for photodynamic therapy of rectal cancers, and belongs to a device for photodynamic therapy. A 635nm LED (Light Emitting Diode) light source, a lithium battery, a constant current control circuit and relevant circuits are packaged in a bullet-type rectal suppository having the length of about 3cm, the diameter of about 1cm and the front end slightly acute, wherein the packaging material is transparent epoxy resin adhesive. By such design, the overall light source can be placed in the rectum of a patient for photodynamic therapy, and is suitable for long-time and low-energy continuous irradiation. The photodynamic therapy process of rectal cancers is simplified, the compliance of patients is improved, the labor intensity of medical staffs is relieved, the cost of photodynamic therapy is reduced, the limitation of the photodynamic therapy space is broken, and patients can accept the therapy in clinics or at home. The light source involves in a scientific research experiment method as clinical reference data of rectal cancers.

The invention discloses a cleaning equipment motion control method which comprises the steps: detecting whether cleaning equipment is collided or not, if the equipment is collided and the cleaning equipment is driven to rotate, continuously irradiating and receiving a detection signal of an obstacle, and stopping spinning when the value of the detection signal is reduced; calculating to obtain anobstacle color parameter according to the received detection signal; adjusting and executing a preset edge movement strategy according to the obtained obstacle color parameters; and adjusting and executing a preset edge movement strategy according to the obtained obstacle color parameters. According to the cleaning equipment motion control method, the current obstacle color coefficient is obtainedby detecting the obstacle signal values at intervals, the obstacle color is judged according to the obstacle color coefficient, and the edge motion strategy corresponding to the obstacle color is executed; therefore, the situation that existing cleaning equipment cannot detect black obstacles and glass obstacles is avoided, the probability of collision is avoided, and the sweeping efficiency is improved.

The invention discloses a continuous generation and synchronous transfer method of micro-droplets. According to the method, polymethyl methacrylate (PMMA) as a lower substrate and a +C surface of a C-cut lithium niobate crystal as an upper substrate oppositely form a chip in a sandwich structure, and the chip is simple and reliable in structure. The chip in the sandwich structure is irradiated byaggregated laser light; the micro-droplets are generated via a dielectrophoretic force by using a photovoltaic effect of the lithium niobate crystal; the generated micro-droplet are driven to be transferred by a thermal expansion effect of PMMA at the same time; and continuous generation and synchronous transfer of the micro-droplets are accomplished under the condition of continuous irradiation.The method comprehensively utilizes the photovoltaic effect of the lithium niobate crystal and the thermal expansion effect of PMMA; the micro-droplets move in a direction opposite to the aggregated laser light after the generation; the aggregated laser light has short action time on the micro-droplets; and the stability of the micro-droplets can be effectively ensured. The technology can be usedfor preparation of micro agents and fluid samples in biological, chemical and medical analysis processes, and has very important significance for development of fields of biomedical care, medicine diagnosis, environmental monitoring, molecular biology and the like.

There is provided a system and method for estimating radiation exposure in real time or in near-real time while a dosimeter is being irradiated. In the preferred arrangement, OSL will be used to calculate estimates of the radiation dose rate, preferably by using comparisons between illumination values measured during and after lighting the dosimeter with a laser light of a predetermined frequency. A first preferred embodiment utilizes quasi-equilibrium OSL intensity with periodic stimulation during continuous irradiation. Another preferred embodiment utilizes the amplitude of the transient OSL signal during periodic stimulation. Another preferred embodiment utilizes the difference between the OSL intensity at the end of one stimulation period and the beginning of the next. Finally, another preferred monitors the time constant for the return of the transient OSL signal to equilibrium, following either a change in dose rate or during a periodic optical stimulation.

The invention relates to a natural casing irradiation fresh-keeping method and belongs to the technical field of irradiation and quality guarantee. Irradiation treatment is carried out to casing at a normal temperature after pickling, draining and finished product bagging, an automatic forward-overturning and backward-overturning stacking type hanging chain is chosen to carry out continuous irradiation, the speed electrical parameter of the hanging chain is 12-24Hz, the irradiation time is 2-5h, the irradiation dose of each bag of casing is 1.5-3KGy, and unevenness of products of the same batch is 1.1-1.4. Full-automatic control is carried out in a movement mode of irradiating the bagged casing, irradiation efficiency is improved, processing costs are reduced, growth of halophilic bacteria of the casing is effectively restrained, and red stain of the casing is avoided. The natural casing irradiation fresh-keeping method is low in cost and runs conveniently, color deterioration degree of the casing during the storage process is low, adverse impact of the outside environmental conditions on the casing can be effectively overcome, economic loss is reduced, and production benefit is increased.

The invention discloses a preparation method of a multilayer reverse osmosis composite membrane. The preparation method comprises the following steps: S1, coating a polyester non-woven fabric with a transition layer solution by using a full-automatic coating machine to form a transition layer on the surface of the polyester non-woven fabric, thereby obtaining a base membrane; S2, immersing the base membrane into an m-phenylenediamine aqueous solution by using the full-automatic coating machine, draining off, and then immersing the base membrane into a 1, 3, 5-trimesoyl chloride solution to form a separation layer on the surface of the base membrane to obtain a permeable membrane without a protective layer, or coating the surface of the base membrane with the 1, 3, 5-trimesoyl chloride solution by using a slit scraper to obtain the permeable membrane without the protective layer; and S3, immersing the permeable membrane without the protective layer into a photoinitiator solution for a certain time, taking out, draining, and carrying out intermittent or continuous irradiation under ultraviolet light to form a protective layer on the surface of the permeable membrane, thereby obtaining the multilayer reverse osmosis composite membrane. The preparation method of the multilayer reverse osmosis composite membrane provided by the invention has the advantages of simple process and mildconditions, and is suitable for industrial production.

The invention relates to a method for producing aluminum alloy profiles for doors and windows of high-speed trains. The method comprises the steps: (1) mold designing; (2) dosing; (3) smelting; (4) extruding; (5) discharging; (6) circle bending; (7) precipitation heat treatment; (8) anodic oxidation; (9) assembly molding. The key of the invention is the aluminum alloy frame of a component, and the frame mainly adopts the two key techniques of mold designing and extruding. The aluminum alloy profiles are adopted, the surface is subjected to anodic oxidation, and hollow glass is mounted in the middle. The produced door and window profiles have the performances such as waterproofness, acid and alkali resistance, non-aging property, wind resistance and sound insulation, which exceed the traditional doors and windows. The produced door and window profiles have weather resistance. The produced door and window profiles are tested by an artificial accelerated aging test by adopting a 313B fluorescent ultraviolet lamp, and the produced door and window profiles are not aged after 300 hours of continuous irradiation.

The invention discloses a multi-reflection-band layered cholesteric liquid crystal composite film with the light response character and a process, and relates to an optical material capable of carrying out light control. The multi-reflection-band layered cholesteric liquid crystal composite film is formed by three layers of cholesteric liquid crystals in an overlaid mode, light with three wave bands can be reflected at most, and the wavelength of the light can at least range from 400nm to 2000nm. Reflection wave crests of one layer of cholesteric liquid crystal can move under irradiation of the light with the specific wavelength, and when the layer of cholesteric liquid crystal and reflection bands of the other two layers of cholesteric liquid crystals interact, the multi-reflection-band layered cholesteric liquid crystal composite film can have different optical effects. After a certain period of irradiation time, the light with a certain wave band can be totally reflected, total reflection can be disappeared through continuous irradiation, and conversion between different reflection states can be accurately controlled through the light with the specific wavelength. In addition, the initial state of the multi-reflection-band layered cholesteric liquid crystal composite film can be restored under the effect of the light or heat.