250 results about "Radiation processing" patented technology

The present invention provides method and apparatus for treating tissue in a region at depth by applying optical radiation thereto of a wavelength able to reach the depth of the region and of a selected relatively low power for a duration sufficient for the radiation to effect the desired treatment while concurrently cooling tissue above the selected region to protect such tissue. Treatment may be enhanced by applying mechanical, acoustic or electrical stimulation to the region.

A method of treating an object with radiation that includes generating volumetric image data of an area of interest of an object and emitting a therapeutic radiation beam towards the area of interest of the object in accordance with a reference plan. The method further includes evaluating the volumetric image data and at least one parameter of the therapeutic radiation beam to provide a real-time, on-line or off-line evaluation and on-line or off-line modification of the reference plan.

Devices and methods for treating tissue with radiation, including light and other optical radiation, in a manner that is eye-safe are described. In one embodiment, a photocosmetic treatment device has a cavity into which tissue to be treated is drawn. The device determines whether the tissue is safe to treat and whether the tissue may be tissue associated with the eyes, such as an eyelid. In another embodiment, an eye-safe pulse of radiation is provided at a time interval prior to treatment of the tissue. The pulse is at a wavelength of radiation that the human eye perceives as particularly intense and uncomfortable, even though the pulse is not dangerous or destructive. If the device is oriented to treat eye tissue, directly or through the eyelid, the pulse will cause an aversive reaction in the subject being treated that inhibits the treatment.

Treatment of carbon-containing low-k dielectric with UV radiation and a reducing agent enables process-induced damage repair. Also, treatment with a reducing agent and UV radiation is effective to clean a processed wafer surface by removal of metal oxide (e.g., copper oxide) and / or organic residue of CMP slurry from the planarized surface of a processed wafer with or without low-k dielectric. The methods of the invention are particularly applicable in the context of damascene processing to recover lost low-k property of a dielectric damaged during processing, either pre-metalization, post-planarization, or both, and / or provide effective post-planarization surface cleaning to improve adhesion of subsequently applied dielectric barrier and / or other layers.

Embodiments of the invention relate generally to an ultraviolet (UV) cure chamber for curing a dielectric material disposed on a substrate and to methods of curing dielectric materials using UV radiation. A substrate processing tool according to one embodiment comprises a body defining a substrate processing region; a substrate support adapted to support a substrate within the substrate processing region; an ultraviolet radiation lamp spaced apart from the substrate support, the lamp configured to transmit ultraviolet radiation to a substrate positioned on the substrate support; and a motor operatively coupled to rotate at least one of the ultraviolet radiation lamp or substrate support at least 180 degrees relative to each other. The substrate processing tool may further comprise one or more reflectors adapted to generate a flood pattern of ultraviolet radiation over the substrate that has complementary high and low intensity areas which combine to generate a substantially uniform irradiance pattern if rotated. Other embodiments are also disclosed.

A medical prosthesis for use within the body which is formed of radiation treated ultra high molecular weight polyethylene having substantially no detectable free radicals, is described. Preferred prostheses exhibit reduced production of particles from the prosthesis during wear of the prosthesis, and are substantially oxidation resistant. Methods of manufacture of such devices and material used therein are also provided.

A system is provided for sterilizing, by irradiation, a plurality of products, each product having an identification code. The products are carried on product carriers which include a carrier identification code. The system includes a product loading station, a product unloading station, an irradiation blocking containment, and an irradiation station location located within the containment. A conveyor passes from the loading station through the containment to the unloading station. Code readers are located along the conveyor for detecting and reading both the product identification code and the carrier identification code. A control and monitoring circuit receives the codes, and stores in memory an association between specific carriers and the products located on those carriers.

Devices and methods for measuring body fluid-related metric using spectrophotometry that may be used to facilitate diagnosis and therapeutic interventions aimed at restoring body fluid balance. In one embodiment, the present invention provides a device for measuring a body-tissue water content metric as a fraction of the fat-free tissue content of a patient using optical spectrophotometry. The device includes a probe housing configured to be placed near a tissue location which is being monitored; light emission optics connected to the housing and configured to direct radiation at the tissue location; light detection optics connected to the housing and configured to receive radiation from the tissue location; and a processing device configured to process radiation from the light emission optics and the light detection optics to compute the metric where the metric includes a ratio of the water content of a portion of patient's tissue in relation to the lean or fat-free content of a portion of patient's tissue.

The invention pertains to a system comprising: a source to generate a pulsed radiation pattern; a detector; a processor to process data from the detector when radiation is reflected by an object; a synchronization means interfacing between the detector and the source; wherein: the detector is synchronized with the source so that radiation to be processed is detected only during the pulses, the processor determines a characteristic of the object by determining displacement of detected spots with reference to predetermined positions, the source emits monochromatic light and the detector is equipped with a bandpass filter and optics arranged so as to modify an angle of incidence onto said filter to confine light to a predetermined range around a normal of said filter, said optics comprising an image-space telecentric lens.

A method and apparatus for the continuous feeding of polymer chips or particles to an electron beam accelerator makes use of spreading, belt conveying, irradiation and cooling. The apparatus is designed to make more efficient use of radiation through continuous feed. This method and apparatus, suitably adapted, is also used for food irradiation and decontamination, particularly for ground meats.

A measurement device for the determination of the characteristics of the object's surface by means of the optical radiation, wherein a measurement device comprises an optical radiation source and a detector to receive the radiation reflected from the surface being measured. In addition, a measurement device comprises an emitted optical radiation processing unit, which is adjusted to split optical radiation emitted by an optical source into separate wavelengths and to direct said separate wavelengths to the object being measured in a direction, that differs from the normal of the surface being measured so, that at least the shortest and the longest wavelengths of said wavelengths are focused on different halves and different heights of the measured object's surface, in the direction of the normal of the surface being measured. In addition, a measurement device comprises a reflected optical radiation processing unit, which is adjusted to receive an optical radiation reflected from the measured object at least in the direction of a specular reflection, which differs from the normal of the surface being measured, and to direct received optical radiation to said detector. Still further, the measurement device is adjusted to analyze an electric signal produced by the detector and proportional to the intensity of the radiation focused thereto, and to further determine a surface gloss (gloss degree) and / or thickness characteristic property of the measured object, based on the intensity of its wavelength, the focus point of which was located on the measured surface, and which wavelength was the strongest reflected from that point to the detector in the specular geometry.

Macro- and microfluidic devices and related technologies, and chemical processes using such devices. More specifically, the devices may be used for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in an efficient, compact and safe to the operator manner. In particular, embodiments of the present invention relate to an automated, multi-run, microfluidic instrument for the multi-step synthesis of radiopharmaceuticals, such as PET probes, comprising a remote shielded mini-cell containing radiation-handing components.

The invention relates to ethylene polymers that are modified by ionizing radiation, prior to article formation, at a temperature less than the crystalline melt temperature and preferably under ambient atmosphere, as well as articles made from said polymers. The irradiated ethylene polymers exhibit enhanced melt strength, tensile strength, impact resistance, tear strength, adhesion to polar substances and thermal stability, decreased elongation, and lower melt flow index, but are easily processed and converted into and onto articles by conventional technologies including injection molding, extrusion, film and bottle blowing and powder coating.

A flame-retardant processing method, containing:a radiation processing step of irradiating a cellulosic fiber material with radiation;a phosphorus processing step of adding a radically polymerizable phosphorus-containing compound to the cellulosic fiber material; andan amine processing step of adding an amine compound to the cellulosic fiber material, and a flame-retarded cellulosic fiber material prepared by the method above.

The invention discloses a meridian tyre belted layer component and a preparation technology thereof. Base material rubber, an aging-proof system, a reinforcing system, an adhesion system, a softener, a vulcanization system and a radiosensitizer are mixed at a ratio to form a mixture; the mixture is performed with three-stage mixing to prepare mixed rubber; a steel wire tire cord is made into a meridian tyre belted layer component by coating and calendaring; on a transmission device below a constant tension traction beam below an electron accelcrator, the tyre belted layer component is performed with radiation processing by adjusting the beam current energy of the electron accelcrator; under the condition of limited-oxygen radiation, the preparation of the meridian tyre belted layer component is finished. The radiated belted layer glue stock of the invention has high Green strength, stable structure size and performance, lowered belted layer thickness, small amount of rubber, high production efficiency and energy saving, lowers investment cost and protection cost, is favourable for environment protection, and can improve the quality of meridian tyres.

A electromagnetic wave-induced heating of CNT filled (or coated) polymer composites for enhancing inter-bead diffusive bonding of fused filament fabricated parts. The technique incorporates electromagnetic wave absorbing nanomaterials (carbon nanotubes (CNTs)) onto the surface or throughout the volume of 3D printer polymer filament to increase the inter-bead bond strength following a post electromagnetic wave irradiation treatment and / or in-situ focused electromagnetic beam during printing. The overall strength of the final 3D printed part will be dramatically increased and the isotropic mechanical properties of fused filament part will approach or exceed conventionally manufactured counterparts.

A method for improving adhesive performance of lithium battery polyvinylidene fluoride by irradiation belongs to the technical field of lithium batteries. A lithium battery with polyvinylidene fluoride (PVDF) adhesive is prepared, the whole battery is placed under an electronic accelerator or on a radiation processing device of Dynamitron and is exposed to irradiation under the irradiation dosage of 20-200 kGy and irradiation dosage rate of 50-15000 Gy / s, PVDF is partially crosslinked, the adhesive performance of PVDF is changed, battery thickness bulking rate is decreased, capacity retention of the battery is increased, battery stability is improved, and the service life of the battery is prolonged.

A system and method for processing substrates, such as porous low-K semiconductor wafers, using ultraviolet (UV) radiation is disclosed. The substrates are first cleaned in a wet processing module and then dried in a UV module under reduced pressure and at a temperature below 100 C., preferably at or below 80 C. A robot module transfers the substrates from the wet processing module to the UV module. The UV module can include a pulse xenon excimer lamp providing incoherent vacuum ultraviolet (VUV) radiation at 172 nm.

The invention relates to a preparation method for an organic / inorganic hybrid perovskite thin film and a solar cell. The chemical formula of the perovskite thin film is ABX3, wherein A is positive ions of organic amine, and preferably selected from at least one kind of CH3NH3<+>, NH2-CH=NH2<+> and C4H9NH3<+>; B is selected from at least one kind of Pb<2+>, Sn<2+>, Ge<2+>, Co<2+>, Fe<2+>, Mn<2+>, Cu<2+> and Ni<2+>; and X is selected from at least one kind of Cl<->, Br<-> or I<->. The preparation method comprises the steps of (1) preparing an ABX3 thin film on a substrate; and (2) performing annealing treatment on the thin film obtained in the step (1) by a microwave radiation processing manner, wherein the microwave power is 50-500W, the sample temperature is 50-150DEG C, and the microwave processing time is 0.5-5min. The preparation method provided by the invention is short in time, low in energy consumption, high in production efficiency, simple in process, mild in preparation conditions, easy to operate and wide in application prospects.

The invention describes a fluoropolymer laminate that includes a first substrate that can be a modified fluoropolymer having polar functionality and a second substrate. The substrates are laminated at an elevated temperature suitable for lamination to occur and then are subsequently treated with radiation, such as ultraviolet radiation, gamma radiation and / or electron beam.

An apparatus for the printing and radiation treatment of a curved surface of an object, such as a body part, includes a printing unit, preferably an inkjet print head, a radiation unit, preferably a UV dryer, and a movement unit, preferably a robot, either for moving the printing unit and the radiation unit at a working distance along the surface or for moving the object at a working distance along the printing unit and the radiation unit. A shielding unit can be adjusted and / or deformed relative to the printing unit and / or relative to the radiation unit and during the printing. Scattered radiation is shielded and damage to the printing unit is prevented as a result of the special configuration of the shielding unit.

A method is provided to convert commercial microprocessors to radiation-hardened processors and, more particularly, a method is provided to modify a commercial microprocessor for radiation hardened applications with minimal changes to the technology, design, device, and process base so as to facilitate a rapid transition for such radiation hardened applications. The method is implemented in a computing infrastructure and includes evaluating a probability that one or more components of an existing commercial design will be affected by a single event upset (SEU). The method further includes replacing the one or more components with a component immune to the SEU to create a final device.

The invention relates to a double-group hydrophilic modification method for a polymer microporous membrane. The method comprises the following steps: (1) performing extraction on the microporous membrane for 0.5 to 6 hours by using an ethanol or acetone solution so as to obtain a preprocessed a matrix membrane, placing the matrix membrane into a solution with sugar to soak for 30 minutes after drying the matrix membrane, and taking out and air-drying the matrix membrane after a modifier is adsorbed to the surface of the microporous membrane; (2) performing radiation processing on the porous membrane obtained in the step (1), washing the porous membrane for three times with deionized water, then soaking the porous membrane into the deionized water to be left to stand overnight, taking the membrane out of the deionized water and carrying out vacuum drying at a temperature of 50 DEG C to obtain a glycosyl modified porous membrane; (3) soaking the glycosyl modified porous membrane into a solution of an organic monomer for 30 to 60 minutes to enable the modified porous membrane to adsorb the organic monomer and air-drying the glycosyl modified porous membrane; (4) placing the polymer microporous membrane processed in the step (3) between two discharge electrodes for dielectric barrier discharge, carrying out normal-pressure dielectric barrier discharge plasma processing, washing and air-drying to obtain the hydrophilic modified polymer microporous membrane. The polymer microporous membrane is a polyethylene, polypropylene or polyvinylidene fluoride microporous membrane.

The present invention discloses a mobile electron beam radiation sterilizing apparatus, comprising: a movable chassis vehicle (1); a cabinet body (2) installed on the chassis vehicle (1); an electron accelerator (6) which generates electron beam for articles to be radiation-processed; an accelerator control box (31), which controls operation of the accelerator, wherein the electron accelerator (6) is provided in the cabinet body. The invention has advantages as following: since the electron accelerator is provided in the cabinet body of the chassis vehicle, it has a small volume with flexible maneuverability, which can be transferred rapidly in a short time. In addition, the apparatus has no additional requirement of using environment, and does not need any additional construction. The invention can implement electron beam radiation for all kinds of documents and mails and achieve rapid and complete sterilization, reaching safety purpose. Further, there is no damage or residual radiation for the processed articles. Moreover, the apparatus has a high degree of automation assembly with easy operations and safety. Thus, it is suitable for chief departments at home and abroad.

A wide-range remote-sensing image automatic dodging and color uniformizing method based on a standard color library comprises the steps that according to subregions formed by dividing a whole range, images which cover all the subregions in all seasons and are obtained through remote sensing of sensors are collected; the images are grouped according to the sensors, resolution and time phase information, and the images of the same kind of sensors, the same kind of resolution and a certain time phase in all the subregions are in one group; absolute radiation processing is carried out, and the images different with the adjacent images in color are adjusted; all the standard color images in all the groups are spliced respectively, and all spliced full-width standard images form the standard color library; firstly, dodging and color statistics are carried out on all single-width images to be processed, then standard color information of related time phases in corresponding geographical ranges under proper space scales and sensor kinds is extracted from the standard color library, the hue of each single-width image is adjusted according to the standard color information, and finally the adjusted images are spliced to form a wide-range image.

An acceleration and scanning integrated structure of fully impervious high vacuum electron beam belongs to the fields of radiation processing technology. It includes accelerating tube, drift tube, scanning electromagnet and scanning box equipped with ion pump, the scanning electromagnet is mounted on top of the scanning box and is connected with the drift tube by the ring flange two, and the top end of the drift tube is connected with the accelerating tube by the ring flange one. It characterized in that the accelerating tube and the scanning box are located and fixed by bracket, the ring flange two and the ring flange one are connected with each other by welding mode with featheredge flange, the accelerating tube adopts the standing wave acceleration structure equipped with exhaust orifice. Compared with current technology, the invention improves the stability and tightness of the accelerator and makes whole volume smaller; it can discharge air in high-temperature discharging furnace directly and leave out the endless vacuum exhaust cause of accelerating tube. It possesses engineering practicability.

There is described a fluid treatment system that is particularly well suited for treating ballast water on a shipping vessel. The present fluid treatment system is characterized by having two general modes of operation. A so-called ballasting mode and a so-called deballasting mode. In the ballasting mode, water is pumped from the sea or other body of water in which the shipping vessel is located to a ballast fluid inlet in the present fluid treatment system. Thereafter, it passes through the filter separation and radiation treatment sections in the fluid treatment zone of the fluid treatment system. Next, the fluid exits the fluid outlet of the fluid treatment system and it is pumped to one or more ballast tanks that are located on the shipping vessel. In the deballasting mode, water contained in the ballast tank(s) is pumped to a deballasting fluid inlet of the fluid treatment system after which it is treated in the radiation section only—i.e., in the deballasting mode, water substantially bypasses the fluid separation section of the fluid treatment system. Next, the treated fluid exits the fluid outlet of the fluid treatment system and is discharged overboard the shipping vessel. A valve system is used to switch between ballasting mode and deballasting mode.