60 results about "Radiation exposure" patented technology

Methods are provided for cleaning a substrate. An exemplary method includes irradiating a pathogenic formation on a surface of the substrate with radiation in a wavelength range of 350 nm to 800 nm, wherein the substrate includes metal particles on the surface of the substrate, and wherein a highest temperature of the metal particles during the irradiation is less than or equal to 45° C.; and delaminating the pathogenic formation from the substrate.

A moving body tracking device obtains the position of a tracking object 55, and generates a signal for permitting irradiation of a target 50 with radiation when it is determined that the tracking object 55 exists inside a gate range. In the moving body tracking device, the gate range varies between timing when the tracking object 55 enters the inside from the outside of the gate range and timing when the tracking object exits from the inside to the outside. Accordingly, provided are a moving body tracking device and a radiation irradiation system with which it is possible to suppress a change in the dose distribution and a decrease in irradiation efficiency due to the influence of latency.

A method for measuring the surface roughness of an object, wherein this method is: a) Receiving a speckle image showing an object while it is being irradiated by coherent electromagnetic radiation associated with wavelengths between 850 nm and 1400 nm, b) Determining the surface roughness measurement based on the speckle image, c) To provide the measurement value of the surface roughness, Includes.

Presented is an invention in which visible light is substituted for damaging radiation, enabling students to learn about radiology through active learning (e.g. by manipulation of a study's subject and seeing, in real time, the resulting changes in the generated image) but without exposure to damaging radiation. The invention also allows student and senior practitioners to practice radiological techniques (e.g. patient positioning, fluoroscopy) without radiation exposure. The invention also allows demonstration of the relationship between a three-dimensional object and its two-dimensional depictions, such as between a machine part and that part's views on a technical drawing.

A substrate comprising diamond has NV− centers in a concentration greater than about 0.5 parts per million (ppm). The method for producing this diamond substrate includes providing diamond being doped with nitrogen, irradiating at least a partial surface of the substrate with radiation that creates vacancies in the diamond, and carrying out a second heat treatment of the substrate at a certain temperature. The substrate can be used as a sensor element of a magnetometer or also as a qubit of a quantum computer.

Disclosed is a radiation protection device provided for a radiographic imaging apparatus to shield radiation from being irradiated to a body side of a patient other than an imaging target, and a radiographic imaging apparatus including the same. The radiation protection device includes a fixing unit fixed to an arm unit of a radiographic imaging apparatus; an elevation unit coupled to the fixing unit to be movable along a first direction; a connecting unit coupled to the elevation unit to be rotatable in a second direction different from the first direction; and a shielding unit provided on one side of the connecting unit to shield radiation, and a radiographic imaging apparatus including the radiation protection device.

An apparatus and method for identifying a protein or proteins in a sample of a biofluid. The identification is based on illuminating the sample with ultraviolet radiation and detecting and analyzing the resulting fluorescence. A trained model may be used to determine a protein responsible for a spectra detected from the illumination of the sample.

This invention relates to a radiation imaging apparatus and a radiation imaging system. The radiation imaging apparatus includes: a pixel; a driver that controls the pixel via a drive line; a readout circuit that reads signals from the pixel via column signal lines; and a detector that detects radiation exposure information separately from a radiation image. Each of the column signal lines is connected to pixels arranged in two pixel columns. The pixel includes a first pixel and a second pixel with different sensitivities. The first pixel and the second pixel are connected to a common column signal line and to different drive lines. When detecting the radiation exposure information, the driver drives the first pixel and the second pixel at different timings, and the detection circuit detects the radiation exposure information based on signals output from the first pixel and the second pixel.

The present invention relates to an inline sensor for measuring the analyte content in a medium to be measured, the sensor comprising an outer tube, an inner tube, a support non-detachably connected to the inner tube, and a sensor element non-detachably connected to the support, the support being movable relative to the outer tube along the longitudinal axis of the sensor in the direction of the medium to be measured from a radiation irradiation position to a high-temperature steam sterilization position, and from the high-temperature steam sterilization position to a measurement position, and being lockable at the high-temperature steam sterilization position and the measurement position, the support being positioned such that at the radiation irradiation position, a gap exists between the support and the cavity of the outer tube in the cavity of the outer tube so that the sensor element located inside the sensor and in the support is in contact with the surroundings, at the high-temperature steam sterilization position, the medium-side end of the support being positioned to hermetically seal the sensor element located inside the sensor and in the support with respect to the surroundings of the sensor, and at the measurement position, the sensor element being positioned to be in contact with the surroundings after high-temperature steam sterilization.

Disclosed is a method of deforming a first patterned substrate or one or more first substrate portions thereof, configured to be bonded to a second patterned substrate, the method comprising providing at least said first patterned substrate or one or more first substrate portions thereof with a layer comprising a material that changes its phase when exposed to a radiation; and irradiating the layer with the radiation, wherein the radiation imposes a stress within the first patterned substrate or one or more first substrate portions thereof, the stress causing deformation of the first patterned substrate or one or more first substrate portions thereof that at least partially corrects a position error of a pattern of the first patterned substrate or one or more first substrate portions thereof.

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.

The application relates to the field of vertebral puncture instruments, and discloses a vertebral body shaping tool system which comprises a puncture needle, a needle core, a guide needle, a push rod and a reamer, the puncture needle comprises a needle rod and a double-ball type handle I, the needle rod is of a hollow structure, and the double-ball type handle I is fixedly installed at the top end of the needle rod. The application has the following advantages and effects: the bone cement hardness can be conveniently and accurately detected, the in-vivo bone cement hardening condition can be accurately judged, unilateral adjacent multiple vertebral bodies can be synchronously punctured and injected with bone cement, the operation time is shortened, the operation complications are reduced, the C-arm perspective and the radiation exposure are reduced, the application has the advantages of higher efficiency and higher safety, the double-ball type handle is arranged, the doctor can hold and operate in accordance with ergonomics, the holding force of the doctor is reduced during operation, the operation mechanical torque is increased, the operation is more labor-saving, the holding is more convenient, the unilateral multiple vertebral bodies can be simultaneously punctured, the puncture accuracy and the one-time success probability are increased, and the operation time is further shortened.

Disclosed is a method of metrology. The method comprises illuminating a radiation onto a substrate; obtaining measurement data relating to at least one measurement of each of one or more structures on the substrate; using a Fourier-related transform to transform the measurement data into a transformed measurement data; and extracting a feature of the substrate from the transformed measurement data, or eliminating an impact of a nuisance parameter.

The present disclosure relates to a composition for enhancing radiotherapy, the composition containing a 2,3,5-substituted thiophene compound of Formula 1 or a pharmaceutically acceptable salt thereof. The composition may increase the sensitivity of cancer cells to radiation, and thus may be advantageously used to enhance the effect of radiotherapy. Also provided is a method for anticancer radiotherapy, the method including steps of: administering the composition for enhancing radiotherapy to a subject; and irradiating the subject with radiation. Further provided is a method for enhancing the effect of radiotherapy, the method including a step of administering the composition for enhancing radiotherapy to a subject.

A kind of battery pole piece laser, electromagnetic wave and radiation of ray's radiation device, including unwinding system, winding system and laser radiation irradiation system, battery pole piece is tensioned between unwinding system and winding system;The laser radiation irradiation system is used to output the laser beam of Gaussian spot, and the laser beam of Gaussian spot is formed into rectangular spot and irradiated on battery pole piece, to carry out laser and electromagnetic, radiation irradiation of ray to battery pole piece, to make the microcosmic world of battery pole piece inside under the condition of light irradiation carry out chemical reaction, to reach the desired state required;Wherein, the laser radiation irradiation system is two, one of which is located at the A side of battery pole piece, for the laser, electromagnetic wave and radiation of ray's radiation device for the A surface of battery pole piece, another is located at the B side of battery pole piece, for the laser, electromagnetic wave and radiation of ray's radiation device for the B surface of battery pole piece.

This invention relates to a method for connecting a retaining element (1) to an optical element (2), particularly a rotationally symmetric optical element, using a connecting material (3). The method includes the steps of: arranging the connecting material (3) between the retaining element (1) and the optical element (2); and curing the connecting material (3), wherein, for curing, radiation (4) is used to irradiate the connecting material (3) to cure the connecting material (3). The object of the invention is to provide a method for reliably connecting a retaining element to an optical element, which allows for flexible optical design and is cost-effective, and this object is achieved by coupling radiation (4) for curing the connecting material (3) into the connecting material (3) by means of a deflection device (5) for deflecting the radiation (4), wherein the radiation (4) is incident on a deflection element (5a) of the deflection device (5) before entering the optical element (2), wherein the radiation (4) is deflected laterally through the optical element (2) by means of the deflection element (5a), particularly towards the connecting material (3) or another deflection element (5b).

This invention belongs to the field of sensor scheduling and discloses a cross-domain sensor resource scheduling method and system based on adaptive particle swarm optimization. The method includes initializing the particle swarm; updating the initialized particle swarm using a combination of swarm optimization and particle update algorithms; in the leader bee neighborhood search phase, updating the initialized particle swarm using the particle update algorithm to generate updated particles and calculating the target fitness corresponding to each updated particle; in the follower bee follow search phase, updating the particle swarm again using the roulette wheel algorithm based on the target fitness corresponding to each updated particle to obtain the update result; repeating the processes corresponding to the leader bee neighborhood search phase and the follower bee follow search phase until the maximum number of iterations is reached, and outputting the current update result as the optimal sensor scheduling scheme. This method improves detection accuracy and reduces radiation exposure risk and the number of sensor task switching operations.

This invention relates to the field of nuclear power plant maintenance technology, and in particular to a method for maintaining the drive rod of a reactor upper assembly drive mechanism. The method comprises: after unlocking the drive rod, lifting it, installing a first clamp on the upper part of the drive rod, and a second clamp on the lower part of the drive rod; slowly lowering the drive rod to fix it to the head of the moving assembly; raising each drive rod to the head of the moving assembly; transferring the upper assembly to the inspection well, and installing a maintenance platform on the upper assembly column; laying a radiation shielding layer on the maintenance platform; hoisting the drive rod above the maintenance platform for a functional check, and lowering the drive rod back to its original position after the check; reinstalling the upper assembly into the reactor core, removing the second and first clamps from the drive rod, and lowering the drive rod to the bottom. This invention simplifies the drive rod maintenance process, reduces personnel workload and radiation exposure, shortens working time, and improves work efficiency.

A nuclear voltaic power source utilizing liquid-state transducer media in combination with radioisotopes to convert nuclear radiation energy into electrical power. The system accommodates four types of liquid transducers: liquid semiconductors (e.g., selenium-iodide) that generate electron-hole pairs; liquid scintillators (e.g., liquid xenon) that convert radiation into photons subsequently absorbed by wide bandgap semiconductors; liquid metals (e.g., gallium) that produce free electrons through ionization; and ionic liquids that generate free ions under radiation exposure. An adaptive transducer contact interface (ATCI) adapts its charge extraction function to match the specific energy conversion mechanism of the selected transducer, functioning as an ohmic / Schottky contact, a wide bandgap semiconductor photon converter, or an electrolytic contact as appropriate. The modular architecture enables optimization for diverse applications while leveraging the inherent radiation resistance and self-healing properties of liquid transducers.

A specialized machine learning model configured to minimize and / or eliminate the need for motorized hardware to block higher order diffracted radiation from corrupting alignment measurements in semiconductor manufacturing metrology processes. For example, a radiation source illuminates a metrology target in a layer of a patterned substrate with radiation, the metrology target diffracts the radiation. A radiation sensor outputs phase data and intensity data of the diffracted radiation. The phase data includes different energies associated with different diffraction orders of the diffracted radiation. The model is configured to determine a subset of the intensity data associated with positive first order diffracted radiation and negative first order diffracted radiation incident on the radiation sensor based on the phase data, and determine an intensity difference or intensity imbalance between the positive first order diffracted radiation and the negative first order diffracted radiation based on the subset of the intensity data. An alignment is determined based on the intensity imbalance.

It accurately reduces crosstalk in radiographic images. [Solution] A radiation imaging device comprising a plurality of pixels, a drive unit, and a readout unit, wherein during radiation irradiation, a first operation is performed in which drive signals are sequentially supplied to the readout unit to generate a first signal, and a second operation is performed in which, following the first operation, the readout unit generates a second signal without supplying a drive signal, and the first signal is corrected with the second signal to generate a radiation image data signal.

A radiation irradiation device includes a device main body that irradiates a subject with radiation; and a spacing ensuring unit that is a member extending from the device main body in an emission direction of the radiation to ensure a spacing between the subject and the device main body and is switchable between an unfolded state in which a length extending from the device main body is a predetermined length and a storage state in which a length from the device main body is shorter than the predetermined length with a displacement of at least a part of a movable portion, in which the movable portion is biased in a direction in which the spacing ensuring unit switches from the storage state to the unfolded state.

This invention provides an intelligent motorized beam limiter with a large field of view and an X-ray imaging system. The beam limiter includes a housing and a lead blade module located within the housing. The lead blade module includes X-direction and Y-direction lead blade modules and first, second, and third drive components. The X-direction lead blade module includes first and second double-layer lead blade modules spaced apart along the X-direction. The Y-direction lead blade module is located below the X-direction lead blade module. The first, second, and third drive components are respectively connected to the first and second double-layer lead blade modules and the Y-direction lead blade module. The beam limiter of this invention can achieve a larger opening within a limited space, allowing the X-ray imaging system using this beam limiter to obtain continuous, complete, and clear images through a single exposure. Compared to multiple exposures, single exposure significantly reduces the radiation dose received by the patient, minimizing unnecessary radiation exposure. Furthermore, it reduces operational procedures and time, improving work efficiency and imaging quality.

The present invention provides a motion tracking device and a radiation irradiation system that can suppress changes in dose distribution and decreases in irradiation efficiency due to latency. [Solution] A motion tracking device that determines the position of the tracked object 55 and generates a signal to permit radiation irradiation to the target 50 when it is determined that the tracked object 55 is inside the gate range, wherein the gate range is different at the time when the tracked object 55 enters the gate range from outside to inside and at the time when it exits the gate range from inside to outside.