19 results about "Energy dose" patented technology

The invention discloses an X-ray thermoacoustic imaging method based on a diffusion model and sound velocity compensation, and relates to the technical field of X-ray thermoacoustic imaging and deep learning imaging reconstruction. According to the method, the influence of sound velocity non-uniformity on a thermal sound wave propagation path and time delay is fully considered, and a new method combining sound velocity compensation and diffusion model reconstruction is provided; on the premise that the hardware complexity of an imaging system is not increased, accurate correction of a wave propagation path is achieved through sound velocity modeling, and imaging artifacts and space positioning errors are effectively avoided; meanwhile, the image inversion framework based on the conditional diffusion model has excellent noise suppression and high-frequency detail recovery capabilities, and can generate a high-quality thermoacoustic image with a clear structure and remarkable contrast under the imaging conditions of low signal-to-noise ratio, low energy dose and the like.

Systems and methods for additive manufacturing are provided. In some embodiments, a method for additive manufacturing includes forming a portion of an additively manufactured object within a reservoir of curable material by scanning a plurality of energy beams of a plurality of energy sources through a plurality of respective scanning regions in the curable material. The scanning regions can overlap at one or more object locations, such that a combined energy dosage delivered to the one or more object locations by two or more of the energy beams is greater than or equal to a threshold dosage for solidifying the curable material. The method can further include advancing the reservoir of curable material relative to the energy sources. The forming and advancing processes can be repeated to fabricate the additively manufactured object.

Energy delivery devices and methods that have one or more features to measure or estimate the amount of energy dose delivered to a target material. Methods and systems for calculating an energy dose to be delivered to the target material. The devices and methods deliver an accurate energy dose to the target material. Devices, systems and methods using microwave energy delivery devices can calculate the energy dose from returned power measurements. Systems and methods adjusting one or more energy delivery parameters or one or more system components while delivering an energy dose to achieve a desired thermal effect.

The present invention provides tissue processing systems, apparatus, and methods. [Solution] Provided herein is a system for treating patient tissue. The system comprises an energy delivery console and at least one energy delivery device. The energy delivery console can deliver a first dose of energy and a second dose of energy. The energy delivery device comprises a first delivery element configured to deliver a first dose of energy to target tissue and a second delivery element configured to deliver a second dose of energy to target tissue. The first dose of energy may include the delivery of energy that reversibly alters the target tissue, and the second dose of energy may include the delivery of energy that irreversibly alters the target tissue. The first dose of energy is delivered to enhance the therapy provided by the second dose of energy.

The invention relates to the technical field of traditional Chinese medicine pharmacy, and discloses a dynamic energy-adjusting traditional Chinese medicine electron beam gradient irradiation sterilization method which comprises the following steps: S1, online sensing and information fusion; s2, modeling a dose demand field; s3, energy dose mapping and energy adjustment strategy generation; s4, dynamic gradient irradiation is executed; and S5, process verification and feedback optimization. By sensing the thickness and density of the medicinal materials and non-uniform distribution of microbial loads on line and establishing a dynamic dose demand field matched with the thickness and density of the medicinal materials, 'on-demand distribution 'of doses is realized, so that a dose'demand window' is formed, and in the irradiation process, the system can automatically identify high-risk areas such as thick areas and microbial hotspots of the medicinal materials, so that the irradiation efficiency of the medicinal materials is improved. The energy deposition of the region is automatically improved; and the active ingredients and appearance quality of the medicinal materials are protected to the greatest extent while the sterilization effect is ensured.

The present invention relates to the field of medical therapy of lesions detrimental to a body. The system is capable of treatment with a non-invasive, ionizing kV energy radiation source. Locally focused energy can be used to definitively treat, or as an adjuvant to enhance immune modulators, to eliminate tumors. Distributed external beam entry points produce a significant advantageous dose profile at depth as intersecting beams accumulate in a narrow focus to treat a selected volume. Targeted disease may have enhanced sensitivity to the radiation by taking up an ionizing-radiation, treatment-localizing agent. This increases the effectiveness of an energy dose in the lesion. The pattern of beam output is effectively directed towards a desired location and kV x-rays traveling towards undesired locations, such as healthy tissue, are quenched. Targeting a lesion within the body with volumetrically discrete energy dose deposition can beneficially impact harmful lesions. Aiming the beam at a pathologic target is done while moving an x-ray source mechanically around a patient to distribute surface dose. The purpose of the focused energy deposition is to destroy and disable pathologic physiology, such as malignant masses. More specifically this invention relates to a system, which optimizes delivery of ionizing kV beams to a lesion alone or one containing treatment-localizing agents in higher concentration than the surrounding normal tissues. Thereby an optimal delivery of ionizing radiation becomes more destructive to a mass of abnormal cells upon interaction with the targeted site.

The application discloses an X-ray thermoacoustic imaging method based on a diffusion model and sound velocity compensation and relates to the technical fields of X-ray thermoacoustic imaging and deep learning imaging reconstruction. The application fully considers the influence of the non-uniformity of sound velocity on the thermoacoustic wave propagation path and time delay, and proposes a new method of combining sound velocity compensation and diffusion model reconstruction; under the premise of not increasing the hardware complexity of the imaging system, the sound velocity modeling is used to realize the accurate correction of the wave propagation path, and the imaging artifacts and spatial positioning errors are effectively avoided; meanwhile, the image inversion framework based on the conditional diffusion model has excellent noise suppression and high-frequency detail recovery capability, and can generate high-quality thermoacoustic images with clear structure and significant contrast under imaging conditions such as low signal-to-noise ratio and low energy dose.

Systems (100) and methods for additive manufacturing are provided. In some embodiments, a method for additive manufacturing includes forming a portion of an additive manufacturing object within a reservoir (104) of a solidifiable material (102) by causing a plurality of energy beams (110) of a plurality of energy sources (108) to scan through a plurality of respective scan regions in the solidifiable material. The scan regions can overlap at one or more object locations such that a combined energy dose delivered to the one or more object locations by two or more of the energy beams is greater than or equal to a threshold dose for causing the solidifiable material to solidify. The method can also include advancing the reservoir of the solidifiable material relative to the energy sources. The forming process and the advancing process can be repeated to manufacture the additive manufacturing object.

A method of forming a microelectronic device includes forming positive tone photoresist on the microelectronic device, filling a trench, extending over a top surface adjacent to the trench, and covering a thickness monitor on a substrate containing the microelectronic device. The photoresist in and over the trench is exposed at a trench energy dose, and the photoresist in the monitor area is exposed at a monitor energy dose that is less than the trench energy dose. The photoresist is developed, leaving photoresist in the trench having an in-trench thickness less than the depth of the trench and leaving an in-monitor thickness of the photoresist on the monitor area less than an unexposed thickness. The in-monitor thickness of the photoresist on the monitor area may be measured and the measured thickness value may be used with a calibration chart to estimate the in-trench thickness of the photoresist.

This invention provides a method for measuring radiation dose that can be easily measured using readily available materials. [Solution] Using cellulose fibers or a structure made of cellulose fibers, radiation is irradiated onto the dosimeter material, thermogravimetric measurements are performed on the dosimeter material after radiation irradiation, the thermogravimetric rate of the dosimeter material is determined from the results of the thermogravimetric measurements, and the radiation dose corresponding to the thermogravimetric rate at any temperature within the range of 200°C to 300°C is obtained based on the correlation between the thermogravimetric rate and the radiation dose. As shown by arrows A and B in Figure 2, the electron beam irradiation energy (Dose) is estimated from the differential thermogravimetric first derivative rate (DTG).

Systems (100) and methods for additive manufacturing are provided. In some embodiments, a method for additive manufacturing includes forming a portion of an additively manufactured object within a reservoir (104) of curable material (102) by scanning a plurality of energy beams (110) of a plurality of energy sources (108) through a plurality of respective scanning regions in the curable material. The scanning regions can overlap at one or more object locations, such that a combined energy dosage delivered to the one or more object locations by two or more of the energy beams is greater than or equal to a threshold dosage for solidifying the curable material. The method can further include advancing the reservoir of curable material relative to the energy sources. The forming and advancing processes can be repeated to fabricate the additively manufactured object.

The present invention discloses a method for improving the efficiency of collaborative optimization of light sources and mask plates, comprising the following steps: step S1, generating an OPC initial optical model and generating a simulation calculation graph; step S2, setting various parameters according to the SMO process, and setting n different normalized energy doses and m different focal length values; step S3, running n×m SMO optimization processes at the same time; obtaining process records of n×m SMO tasks and preliminary results of SMO; step S4, comparing the similarity of n×m SMO lighting source shapes, and comparing evaluation parameters and time; step S5, determining the most optimized energy dose and setting the focal length value, and performing SMO optimization. The present invention improves the SMO optimization efficiency, speeds up the SMO optimization speed, and also lays a solid foundation for SMO to output a suitable lighting source shape.

The invention relates to the technical field of steel coil coating, and discloses a method for preparing a cured coating on the surface of a steel coil, comprising the following specific method steps: S1 raw material preparation, S2 coating preparation, S3 steel coil surface treatment, S4 electron beam cured coating and S5 post-treatment. The method can be cured efficiently and quickly: electron beam curing is adopted, and the coating can be cured in a very short time. Compared with traditional thermal curing, the curing time can be shortened from several hours to several seconds, which greatly improves the production efficiency and is suitable for large-scale continuous production of steel coil coating. At the same time, low energy consumption and environmental protection are achieved: the electron beam curing process does not need to maintain a high temperature environment for a long time like thermal curing, and energy consumption is significantly reduced. At the same time, waste gas emissions caused by high temperature are reduced, which meets environmental protection requirements and reduces the energy cost and environmental pressure of enterprises. The method has excellent coating performance: by accurately controlling parameters such as the energy and dosage of the electron beam, the coating can be cured evenly and fully, and the coating has high hardness and strong adhesion.

Systems and methods are provided for treating a target tissue. Accordingly, an electrode catheter is positioned in proximity to the target tissue and a dose of energy is delivered. The dose of energy includes a set of pulses at a first frequency. Each pulse has a maximal pulse magnitude and a pulse duration associated with a reference pulse and an energy output that is less than the reference pulse. A pulse waveform of each pulse includes a set of peak intervals at a second frequency and interspersed nadir intervals. The duration of each nadir interval is less than a restitution interval of the target tissue, and the second frequency enhances production of an oxidative reaction. The resultant Maxwell stress substantially equals the Maxwell stress that would be produced by the reference pulse, while the oxidative stress is greater than the oxidative stress produceable by the reference pulse.

Systems and methods are provided for treating a target tissue. Accordingly, an electrode catheter is positioned in proximity to the target tissue and a dose of energy is delivered. The dose of energy includes a set of pulses at a first frequency. Each pulse has a maximal pulse magnitude and a pulse duration associated with a reference pulse and an energy output that is less than the reference pulse. A pulse waveform of each pulse includes a set of peak intervals at a second frequency and interspersed nadir intervals. The duration of each nadir interval is less than a restitution interval of the target tissue, and the second frequency enhances production of an oxidative reaction. The resultant Maxwell stress substantially equals the Maxwell stress that would be produced by the reference pulse, while the oxidative stress is greater than the oxidative stress produceable by the reference pulse.

A method of treating an eye condition associated with protein aggregation in the lens is disclosed. The method may include: radiating the eye with a radiofrequency (RF) energy dose in at least one frequency. The at least one frequency may be selected to cause disaggregation of lens protein aggregates of groups: a-crystallins, P-crystallins, and y- crystallins

Energy delivery devices and methods that have one or more features to measure or estimate the amount of energy dose delivered to a target material. Methods and systems for calculating an energy dose to be delivered to the target material. The devices and methods deliver an accurate energy dose to the target material. Devices, systems and methods using microwave energy delivery devices can calculate the energy dose from returned power measurements. Systems and methods adjusting one or more energy delivery parameters or one or more system components while delivering an energy dose to achieve a desired thermal effect.

The present invention relates to an in-line method of radio sterilization of wound dressings using electrons. A packaged wound dressing is provided by means of a production apparatus and conveyed to a sterilization module by means of a conveying device. The packaged wound dressing is sterilized by means of a sterilization module coupled in-line to the production apparatus. The sterilization module comprises an electron beam source, which generates electrons having an energy of between 150 keV and 350 keV. The energy dose to which the packaged wound dressings are exposed is at least 15 kGy and no more than 30 kGy. The conveying device moves the packaged wound dressings at a speed of at least 10 m / min and no more than 200 m / min.

The application provides an ion irradiation method for improving the performance of copper-based superconducting tapes, and belongs to the technical field of ion irradiation.The ion irradiation method comprises the following steps: under vacuum conditions, ion irradiation is performed on a copper-based superconducting tape by using an ion beam; the ion beam comprises a light ion beam or a heavy ion beam.The application realizes effective modification of the copper-based superconducting tape by precisely controlling the energy, dose and flow intensity of the ion beam, significantly improves the current-carrying performance of the 2G- HTS tape under high temperature and high field, and increases the critical current density Jc by 2.1-5 times.In addition, the application can modify the copper-based superconducting tape according to specific requirements, thereby improving the consistency and stability of the modification effect.