162results about How to "Accurate irradiation" patented technology

A radiotherapy apparatus includes an irradiation head section, an X-ray source section and a sensor array section. The irradiation head section irradiates therapeutic radiation to a therapeutic field of a target substance. The X-ray source section irradiates diagnostic X-rays to the therapeutic field of the target subject. The sensor array section detects the diagnostic X-rays which have transmitted the target subject, and outputs diagnostic X-ray image data based on the detected diagnostic X-rays. The sensor array section moves in conjunction with movement of the irradiation head section.

A therapeutic apparatus (400, 500) comprising a radiotherapy apparatus (402), a mechanical positioning system, and a magnetic resonance imaging system (404). The radiotherapy apparatus comprises a radiotherapy source (408). The radiotherapy apparatus is adapted for rotating the radiotherapy source at least partially around a subject support. The therapeutic apparatus further comprises a memory containing machine executable instructions (468, 470, 472, 474, 476). Execution of the instructions causes a processor to repeatedly: acquire (100) the magnetic resonance data using the magnetic resonance imaging system; reconstruct (102) a magnetic resonance image (460) from the magnetic resonance data; register (104) a location (462) of the target zone in the magnetic resonance image; generate (106) radiotherapy control signals (464) in accordance with the location of the registered target zone; generate (108) mechanical positioning control signals (466) in accordance with the registered target zone and the radiotherapy control signals; and send (110) the radiotherapy control signals to the radiotherapy system and send (110) the mechanical positioning control signals to the mechanical positioning system.

Optical displacement gauges 20 are respectively arranged on both sides of a thin sheet material w, and displacement of surface position of the thin sheet material w is measured by irradiating measurement light L1 to the surface of the thin sheet material w. Thickness variation of the thin sheet material w is obtained from the measurement results of displacement of the surface position of the thin sheet material w.

An optical semiconductor device includes an optical semiconductor chip, a light permeable member covering the chip, and a reflector formed with an accommodation space for accommodating the light permeable member. The light permeable member includes a convex lens for converging light emitted from the optical semiconductor chip. The reflector includes a reflecting surface for reflecting light emitted from the optical semiconductor chip. At least part of the convex lens is located within the accommodation space of the reflector. The light permeable member includes an extension engaging and extending along the reflecting surface. The extension includes a light emitting surface surrounding the convex lens.

An X-ray treatment apparatus comprises a low energy X-ray generator for detecting a marker, a marker sensor detecting a position of the marker fixed in the patient to a couch, and both low energy X-ray generator and the marker sensor are installed in the couch, a high energy X-ray generator for treatment, a X-ray sensor for treatment detecting the high energy X-ray for treatment. An X-ray treatment method using the X-ray treatment apparatus comprises the steps of detecting a position of a marker by the marker sensor, irradiating to a lesion the high energy X-ray for treatment, detecting the penetrated high energy X-ray for treatment by the X-ray sensor for treatment, modifying the beam profile, the dosage or / and the radiation direction of the X-ray for treatment according to the latest data of the sensors, performing the next radiation for the lesion.

Whereas a light source bulb is used as a light source of a basic lamp piece unit which needs a large amount of irradiating light, with regard to an additional lamp piece unit lighted on and off repeatedly in accordance with a situation of running a vehicle, a semiconductor light emitting element having a fast response speed in being lighted on and off and excellent in durability against repeatedly lighting on and off the semiconductor light emitting element 64 as a light source thereof. Thereby, light can be irradiated in correspondence with the situation of running the vehicle and life of the light source can sufficiently been ensured. Further, the additional lamp piece unit is made to be able to be compactly constituted to promote a degree of freedom of arranging the additional lamp piece unit.

An irradiation apparatus radiates a particle beam after forming the beam for plural layers. A dose monitor measures a dose in real time. A dose evaluation unit evaluates an irradiation dose for each layer on the basis of a value measured by the dose monitor and a dose calibration factor set for each layer. An irradiation control section performs radiation control for each layer on the basis of an evaluation result of the dose evaluation unit. An interpolation value generation unit uses actual-measurement dose-calibration factors obtained by radiating a particle beam to a simulated phantom provided with a calibration dosimeter, to generate an interpolation estimation value of the dose calibration factor. For each layer subject to the interpolation value, and based on an irradiation condition of that layer, the interpolation value generation unit performs weighting on each of the actual-measurement dose-calibration factors.

The invention provides an adjusting apparatus, laser processing device, adjustment method and adjustment procedures, which can effectively adjust the irradiation of lights after space modulation. When a control section (113) appoints a calibration pattern to the DMD (106), the LED light from an LED light source (116), after space modulation through the DMD (106), is irradiated onto an object to be processed (102). A CCD camera (112) shoots the object to be processed (102). The control section (113) reads the shot image, to calculate the transformation parameter of converting the calibration pattern into output pattern which is produced on the image correspondingly to the calibration pattern. When irradiation patterns appointed by an operation section (114) or the like, are irradiated onto an object to be processed (102) after pace modulation to the laser from an optical maser oscillator (103) through the DMD (106), the control section (113) modulates the laser irradiation based on transformation parameters.

A fluorescent X-ray analysis apparatus includes: an X-ray generation source for radiating a beam of primary X-rays; spectroscopic elements circularly arranged so that their inner surfaces describe a circle centered on an optical axis of the beam of primary X-rays for monochromatizing the beam of primary X-rays and condensing the beam on a surface of an irradiation object; a spectroscopic element position adjuster for adjusting the positions of the spectroscopic elements; secondary X-rays detector for detecting secondary X-rays radiated from the surface of the irradiation object irradiated with the monochromatized beam of primary X-rays; a secondary X-ray detector position adjuster adjusting the position of the secondary X-ray detector; an irradiation object surface position detector detecting the position of the surface of the irradiation object; and a controller adjusting the positions of the spectroscopic elements through the spectroscopic element position adjuster to condense the monochromatized beam of primary X-rays on the surface of the irradiation object, on the basis of the position of the surface of the irradiation object detected by the irradiation object surface position detector.

The present invention provides a charge neutralizer for accurately irradiating a soft X ray into a narrow gap after a glass substrate is lifted up. A soft X ray is introduced into a gap “d” from a soft X ray charge neutralizer 14, and the soft X ray is detected by a soft X ray optical axis monitor 16. Mounting position adjusting means 15 is adjusted by a detection output from said soft X ray optical axis monitor, and optical axis alignment is performed. Next, according to information from a database 19, a control unit 17 controls gap adjusting means 13, and charge neutralization is performed. Charge neutralization can also be performed by controlling the gap “d” by the gap adjusting means 13 while judging neutralizing conditions as to whether a charged potential measured by an electrometer 18 is within an allowable value by the control unit 17 or not.

An optical disc apparatus and a focus position control method can highly accurately record recording marks representing information on or reproduce such recording marks from an optical disc. A blue light beam is irradiated onto the target depth to be irradiated by driving an objective lens to focus a red light beam in a reflection / transmission film formed in the optical disc and displacing a movable lens, which is a focus moving section, of a relay lens. A blue light reflection region is formed as part of the reflection / transmission film and the position of the blue light reflection region where the red light focus and the blue light focus are aligned is defined as reference position. The movable lens is displaced by an arbitrarily selected quantity from the reference position according to the target depth.

An apparatus for creating an EUV light may include a droplet-supplying unit, a laser-irradiating unit, a light-concentrating unit and a guiding unit. The droplet-supplying unit may supply a droplet from which the EUV light may be created. The laser-irradiating unit may irradiate a laser to the droplet supplied from the droplet-supplying unit to create the EUV light. The light-concentrating unit may concentrate the EUV light created by the laser-irradiating unit. The guiding unit may guide the droplet to a position at which the laser may be irradiated. The guiding unit may have at least one gas-spraying hole for spraying a gas to a space between the droplet-supplying unit and the laser irradiation position to form a gas curtain configured to surround the droplet.

A laser packaging method includes the steps of generating dotted laser beams, shaping the dotted laser beams into linear laser beams, arranging a mask plate on a packaging material, forming a light transmitting zone of which the shape is matched with the shape of the packaging material on the mask plate, aligning the mask plate to the light transmitting zone and the packaging material, and utilizing the linear laser beams to scan the mask plate. By the adoption of the laser packaging method, after the mask plate and sealing patterns are aligned, the linear laser beams scan and irradiate the mask plate, irradiation and hot melting of the whole sealing patterns can be achieved, and the packaging efficiency is improved. After the mask plate and sealing patterns are aligned, laser can accurately irradiate a packaging zone, and the requirement for aligning accuracy of the laser beams is reduced.

The invention discloses a method for adjusting the irradiation position of an ultraviolet lamp according to the view finding position of a camera and a mobile terminal. The mobile terminal comprises a mobile terminal body, the ultraviolet lamp, the camera and a controller. The method comprises the steps of: (1) starting the camera, enabling the view finding position to correspond to a sterilized object, and displaying the obtained image information in a display screen; (2) determining the relative coordinate value of the irradiation position of the ultraviolet lamp relative to the view finding position of the camera; and (3), adjusting the irradiation position of the ultraviolet lamp to the view finding position of the camera according to the relative coordinate value. In the sterilizing process of the mobile terminal, direct vision of human eyes on the sterilized object irradiated by the ultraviolet lamp can be avoided, and that the ultraviolet light is irradiated on the sterilized object can be better determined.

A therapeutic apparatus (100) comprising: a radio therapy apparatus (102) for treating a target zone (146) of a subject (144), wherein the radio therapy apparatus comprises a radio therapy source (110) for generating electromagnetic radiation (114), wherein the radio therapy apparatus is adapted for rotating the radio therapy source about a rotational point (116); a mechanical actuator (104) for supporting the radio therapy apparatus and for moving the position and / or orientation of the rotational point; and a magnetic resonance imaging system (106) for acquiring magnetic resonance data (170) from an imaging zone (138), wherein the target zone is within the imaging zone, wherein the magnetic resonance imaging system comprises a magnet (122) for generating a magnetic field within the imaging zone, wherein the radio therapy source is adapted for rotating at least partially about the magnet.

The invention discloses a three-dimensional head testing method based on a single camera module for radiotherapy. The method comprises the following steps: step 1, acquiring a three-dimensional head image according to a CT scanning result of a patient before radiotherapy; step 2, acquiring a face image in real time during radiotherapy; step 3, calculating the current relative distance and the inclination angle between face and the camera module according tothe three-dimensional head image in the step 1 and the face image in the step 2; step 4, constructing three-dimensional coordinate points of a head in real time by taking the center of a camera sensor of the camera module as an original point. The face is shot by the single camera module, data of key points of the face is acquired, a rotation angle is obtained with an affine transformation algorithm, and a rotation matrix is obtained; a translation vector of the head can be obtained through combination with the three-dimensional CT image in DicomRT; three-dimensional positional information, including three-dimensional positional information of internal tumor, of the head in real space can be obtained in real time through actions of the rotation matrix and the translation vector on the three-dimensional CT image of the head, so that a tumor area is irradiated precisely by radioactive rays.

A charged particle beam extraction method according to the present invention is featured in that, in a circular accelerator which accelerates a charged particle beam, a pulse voltage is applied to a part of the accelerated charged particle beam to generate a momentum deviation only in the part of the charged particle beam, in that the charged particles of a part of the charged particle beam, the charged particles having a large momentum deviation, are located in a non-stable region and in an extraction region in a horizontal phase space with respect to the traveling direction of the charged particle beam, and in that a group of the charged particles located in the non-stable region and in the extraction region are largely deviated in the horizontal direction so as to be extracted.

A plastic molding method comprising steps of heating a plastic material with irradiation of infrared laser or focused infrared to the plastic material put in a cavity of a molding die and compressing the plastic material within the cavity for deforming the plastic material into a given shape. The plastic material is a transparent material to visible light to which an infrared absorption material is added. The infrared laser is irradiated using a carbon dioxide gas laser unit. A water content of the plastic material is no more than 0.01% by mass. The irradiation of the infrared to the plastic material is implemented under atmosphere of an inert gas. The plastic material is any one of polycarbonate, polyester, cyclopolyolefin, acryl, alicyclic acryl resin, and olefin-maleimide-alternating-copolymer. Accordingly, the plastic material can be effectively heated up by the infrared within a short time, thereby resulting in increasing a manufacturing efficiency of products.

The invention discloses a Cs-137 Gamma-source panoramic exposure apparatus with individual dosimeter calibration and the degree of activity of the invention is not larger than 11.1 GBq (300m Ci). The invention adopts the technique of barrel shutter to open and close a mask channel, and uses a long-stroke air cylinder to push out radioactive source from a storage jar rapidly, and a rotary platform with multiple exposure directions which is placed with the individual dosimeter rotates around the radioactive source, which ensures the even irradiation of the individual dosimeter. The invention uses a remote controller to control the running of the apparatus (setting the irradiation time for automatic irradiation is included), and the invention is provided with a safety door rod, audible and visual alarm, and the safety of an enhanced test system of source availability. The invention can be used for the test and calibration of single or batch X and Gamma individual dosimeters (including TL sheets), and the placement of active or passive individual dosimeters for irradiation which are composed of various detecting elements and have all sizes and shapes. The invention can be taken as a standard apparatus in the department that detects and calibrates radioactive dosage, and the invention can be used for the calibration of individual dosimeters in the field of nuclear facility such as nuclear plants, as well as the field of medical treatment, and the service departments specializing in individual dosage.

The control device allows a step of reading the leak data and a step of resetting each radiation detection element to be executed alternately before radiation image capturing. When the data exceed a threshold value, the irradiation start is detected and electric charge is accumulated. Then, the step of reading the image data is executed. After this, the control device further allows a step of reading the leak data and a step of resetting each radiation detection element to be performed alternately at the same cycle time as that in the step of reading the leak data and the step of resetting each radiation detection element performed before detecting the irradiation start. After transfer to the electric charge accumulation state, the control device further permits a step of reading the offset data to be executed at the same cycle time as that in the step of reading the image data.

The invention discloses a finger vein and fingerprint hybrid identity authentication device and method. In a same structure, two independent groups of infrared spot lights are utilized to extract vein information and fingerprint information of a finger respectively, the structure is simple, and the operation is convenient; the complementation of the two types of biological identification modes of finger vein and fingerprint is realized, so that the authentication accuracy is higher, and scope of application is wider; due to the arrangement of an isolation board and two rows of infrared spot light groups, light irradiated to a verifying finger can be adequate and irradiated accurately; moreover, image interference to vein information and fingerprint images is reduced, so that the acquisition accuracy and success rate are improved, and a guarantee is provided for follow-up certification; comparison authentication is carried out in an intelligent terminal, so that equipment does not need to store feature information or perform comparison authentication, the function is simpler, and the component is smaller; and due to the adoption of low-energy design, the finger vein and fingerprint hybrid identity authentication device is connected with other intelligent equipment via a USB for information exchange, and is powered by the USB directly, so that no external power supply is needed.

The invention relates to a calibration device for the shear amount of an interferometer. The calibration device for the shear amount of an interferometer includes a laser and a CCD camera arranged on the same optical path as the laser. The invention provides a high-precision, high-definition and accurately positioned interferometer shear calibration device.

The invention discloses a blast hole punching and positioning device and positioning method. The positioning device comprises a positioning rod (1), wherein an expansion link (2) is transversely fixedat the top end of the positioning rod (1), and an angle meter (3) is fixed upwards at the top end of the expansion link (2); in positioning, the top end of the positioning rod (1) is fixed on a working surface, and the positioning rod (1) is vertical to the working surface; by adjusting the position of an inner rod of the expansion rod, the angle meter (3) is aligned to a position to be punched;the direction of a laser emitter (5) of the angle meter (3) is adjusted to be 90 degrees; the inner rod is fixed together with an outer rod by a fixing ring; and punching is performed along the laserbeam, and then a blast hole vertical to the working surface can be obtained; and therefore, the technical problems of the prior art that angle error is great and blasting operation cannot reach an expected effect due to the adoption of manual measurement for blast hole positioning when blast hole punching is performed in a coal mine tunnel are solved.