1199results about "Irradiation devices" patented technology

The invention provides a double-air-gap high-temperature material temperature control irradiation device. The double-air-gap high-temperature material temperature control irradiation device comprises an air inlet pipe, a test section, an outer sleeve, an outer-layer air outlet pipe, an inner-layer air outlet pipe, a flange assembly, a mouse cage assembly, a sealing head assembly and an air nozzle assembly. The second end of the test section is fixedly connected with the first end of the outer sleeve, the peripheral wall of the outer sleeve is fixedly connected to the flange assembly, and an air outlet of the test section is fixedly connected with the first ends of the outer-layer air outlet pipe and the inner-layer air outlet pipe. The outer layer air outlet pipe and the inner layer air outlet pipe are fixedly connected with the first end of the mouse cage assembly. The second end of the mouse cage assembly is in sealed connection with the sealing head assembly and the air tap assembly. The air inlet pipe is arranged in a reserved air pipe channel in the test section, the first end of the air inlet pipe is hermetically fixed at the port of the first end of the test section, and the second end of the air inlet pipe penetrates through the corresponding penetrating opening of the flange assembly; the irradiation temperature can be greatly increased, it can be guaranteed that the temperature of the outer side of the device is kept within a safe range, and the high-temperature irradiation problem is solved.

The invention provides a partition temperature control irradiation device, and belongs to the technical field of nuclear irradiation devices, the partition temperature control irradiation device is characterized in that a first connecting pipe connects a first test section and a second test section, by adjusting the first connecting pipe, on one hand, the first connecting pipe can play a role in protecting a second pipe group, and on the other hand, by adjusting the first connecting pipe, the second pipe group can play a role in protecting the second pipe group; the relative position between the first test section and the second test section can be adjusted, so that the axial position of the second test section can be adjusted, and the ventilation volume of temperature control loops of the first pipe group and the second pipe group and the component proportion of mixed gas are respectively controlled; according to the irradiation device, samples at different positions in the axial direction of the irradiation pore channel can meet different or same test temperature requirements, control over multiple test temperatures is achieved in the same irradiation device, the temperature control range of the irradiation device is expanded, and the temperature control precision of the irradiation device is improved by adjusting the axial position of the second test section.

The present disclosure relates to an electron beam output device for medical use, and the electron beam output device may comprise: an electron beam generation unit for generating an electron beam in the form of a pencil beam; an electron beam acceleration unit that receives the electron beam generated by the electron beam generation unit and accelerates the received electron beam; a conduit for allowing the electron beam received from the electron beam acceleration unit to pass through and be disposed opposite to a target site or enter an internal passage of the target site; and a first magnetic field generation unit that is provided in the conduit and generates a magnetic field that refracts the electron beam output from the conduit.

The present invention makes it possible to support an apparatus in a predetermined space between magnetic poles while also curbing any impact on the magnetic field distribution. A superconducting magnet 11 with iron core is provided with: a plurality of iron core sections 12, 13 that are provided facing opposite one another in the axial direction and can be split in the axial direction; superconducting coils 23 provided in the periphery of magnetic poles 121, 131 respectively formed at middle sections of the plurality of iron core sections; and at least one support member 100 supporting, from at least one of the magnetic poles, an apparatus 200 provided in a predetermined space 16 between the magnetic poles. A section 120, of the support member, protruding out from the magnetic pole into the predetermined space is formed of a non-magnetic material.

The utility model discloses an electron accelerator irradiation device which comprises a support, two sleeves are fixedly embedded in the upper surface of the support, the inner wall of each sleeve is slidably connected with a sliding rod, and the side faces, close to each other, of the two sliding rods are each provided with a set of positioning grooves. The bottom ends of the two sliding rods are jointly and fixedly connected with an irradiation mechanism, a rolling bearing is fixedly embedded in the inner side wall of the support, and a pressure bearing is fixedly embedded in the right side face of the support. According to the device, through a sleeve and a sliding rod, the irradiation mechanism can be moved up and down conveniently, meanwhile, the irradiation mechanism can be adjusted to a proper position conveniently, then by means of the connection relation of a motor, a positive and negative rotation threaded rod and a threaded barrel, the threaded barrel can drive movable rods to slide in a positioning plate conveniently, and meanwhile the two movable rods can be away from each other conveniently; and then the pushing force of the movable rod is utilized, so that the positioning block can be conveniently inserted into the positioning groove, the sliding rod can be conveniently limited, and the height of the irradiation mechanism can be conveniently adjusted.

The present invention improves analysis accuracy and shortens measurement time by preventing a decrease in the intensity of fluorescent X-rays to be detected. A fluorescent X-ray analysis device having a sample chamber in which a sample is disposed and an irradiation chamber separated from the sample chamber by using a partition plate, the fluorescent X-ray analysis device having: an X-ray source that is disposed in the irradiation chamber and that irradiates X-rays obliquely toward an opening provided on a partition wall between the sample chamber and the irradiation chamber; a window frame member that is formed of a material that transmits the X-rays, that holds a partition film constituting a part of the partition, and that is disposed in an opening provided in the partition wall; and a film support member that has a long hole through which the X-rays pass, is disposed adjacent to the separator film on the irradiation chamber side, and supports the separator film from the irradiation chamber side. The film support member is disposed such that the long hole is parallel to an optical axis of the X-ray in a plan view from the sample chamber side toward the irradiation chamber side.

A method of establishing a biomechanical model (300) of an anatomical region (202) of a radiotherapy patient (200) for use in a radiotherapy system (100) is disclosed. The method comprising the steps of establishing a point-based or mesh-based model of the modelled anatomical region; associating static and / or dynamic features to points or mesh nodes (302) of the point-based or mesh-based model, the features comprising a world-space coordinate of the points or mesh nodes and state variable representing spatial-temporal displacement of the anatomical region and, for each point or mesh node, at least one feature characterising body tissue in the anatomical region; representing the model as a graph in a graph neural network system (500); and training the model on a cyclic or semi-cyclic motion of the anatomical region. A radiotherapy system is also disclosed.

A Flash beam dose control method and a related device. The Flash beam dose control method comprises: obtaining a Flash beam output dose demand; controlling, by means of a Flash tuning mode, the number of pulse periods of output beam charges within a preset time; and / or controlling the pulse width of an ion source voltage by means of a pulse width mapping curve, so as to control a Flash beam output dose rate. By precisely controlling the number of pulse periods of output beam charges and the pulse width of the ion source voltage, the Flash beam output dose rate can be precisely controlled without requiring an additional shielding function for a proton therapy room, so that the dose of Flash can also be tuned in a conventional proton therapy room, thereby facilitating implementation of particle Flash radiotherapy.

Targetry coupled separation refers to enhancing the production of a predetermined radiation product through the selection of a target (including selection of the target material and the material's physical structure) and separation chemistry in order to optimize the recovery of the predetermined radiation product. This disclosure describes systems and methods for creating (through irradiation) and removing one or more desired radioisotopes from a target and further describes systems and methods that allow the same target to undergo multiple irradiations and separation operations without damage to the target. In contrast with the prior art that requires complete dissolution or destruction of a target before recovery of any irradiation products, the repeated reuse of the same physical target allowed by targetry coupled separation represents a significant increase in efficiency and decrease in cost over the prior art.

A radioisotope target station, including a target housing. The target housing includes a target material, and a target backing material. The radioisotope target station includes a loader mechanism comprising at least one jaw configured to secure the target housing, a loading position comprising a magazine, wherein the magazine is configured to hold two or more target housings, an irradiation position comprising a beam, where the beam is configured to irradiate the target housing orthogonally, a cooling fluid source fluidly coupled to the loader mechanism, where the cooling fluid source is configured to cool the target housing as the target housing is irradiated, and an ejection position comprising an ejector and an ejection chute, where the ejector is configured to detach the target housing from the loader mechanism and the ejection chute is configured to receive the target housing when detached.

Systems and methods for a quantum computing include a plurality of photonic processing stages, a plurality of heralding-free connections, and circuitry configured to regulate photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage. Each heralding-free connection is located between adjacent photonic processing stages. Each photonic processing stage includes at least two of an optical switch, a beam splitter, a waveguide or a photon generator. Methods include transmitting or receiving a plurality of photons via a plurality of heralding-free connections, and regulating photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage.

An object is to provide an electron beam applicator suitable for an electron gun having a photocathode and an electron beam emission method in the electron beam applicator. The object can be achieved by an electron beam applicator including: an electron gun section; a main body section; and a control unit. The electron gun section includes a light source, a photocathode that emits an electron beam in response to receiving excitation light emitted from the light source, and an anode. The main body section includes an objective lens that converges an electron beam emitted from the electron gun section. The control unit controls at least convergence power of the objective lens in accordance with a size of an electron beam emitted from the photocathode.

hardening device, comprising: a first elliptical cylindrical reflector and a second elliptical cylindrical reflector, wherein the first elliptical cylindrical reflector and the second elliptical cylindrical reflector are arranged such that they have a common focal point, and a light source positioned at a second focal point of the first elliptical cylindrical reflector, wherein light emitted by the light source is reflected from the first elliptical cylindrical reflector to the common focal point and is reflected back from the second elliptical cylindrical reflector to the common focal point, wherein a light source is absent at a second focal point of the second elliptical cylindrical reflector.

The invention discloses a neutron irradiation device for 40Ar-39Ar dating samples, and relates to the technical field of research reactor irradiation, the neutron irradiation device comprises an aluminum pot, the aluminum pot is a full solid aluminum pot body, one end face of the aluminum pot is provided with a plurality of blind holes along the axial direction, and the blind holes are parallel to the axis of the aluminum pot and are used for placing quartz tubes; the aluminum cover is used for sealing one end of the aluminum pot; the size of the quartz tube is matched with that of the blind hole; a plurality of positioning heat conduction pieces are arranged in the quartz tube along the length direction of the quartz tube and are used for positioning and mounting samples; the positioning heat conduction pieces are aluminum columns, the multiple aluminum columns are all placed in the quartz tube, and samples are clamped between the adjacent aluminum columns. The 40Ar-39Ar dating sample neutron irradiation device can be used for performing neutron irradiation on the 40Ar-39Ar dating sample in a research reactor, not only can meet the irradiation temperature range required by irradiation of the 40Ar-39Ar dating sample, but also can ensure the stability and accuracy of the dating sample in the axial and radial positions.

The present invention provides a radionuclide production system, a radionuclide production method, and an accelerator system with which a beam profile of radiation irradiated on a target can be monitored in real time using a destructive monitor, and with which appropriate irradiation on the target can be carried out according to the beam profile. The radionuclide production system comprises: an accelerator that accelerates charged particles; and a target that produces a radionuclide by nuclear reaction upon being irradiated with an accelerated charged particle beam or radiation generated by a charged particle beam. The radionuclide production system further comprises, behind targets (T205, T207) in the direction of advancement of the charged particle beam, destructive monitors (T206, T209) which are detectors for detecting radiation and which interact with the radiation. On the basis of a spatial distribution of intensity of the charged particle beam or radiation measured by the destructive monitors, the radionuclide production method produces a radionuclide while determining, as a beam profile at positions of the targets, at least one of a spatial distribution of intensity, a position of a beam center, and a beam spread.

Targetry coupled separation refers to enhancing the production of a predetermined radiation product through the selection of a target (including selection of the target material and the material's physical structure) and separation chemistry in order to optimize the recovery of the predetermined radiation product. This disclosure describes systems and methods for creating (through irradiation) and removing one or more desired radioisotopes from a target and further describes systems and methods that allow the same target to undergo multiple irradiations and separation operations without damage to the target. In contrast with the prior art that requires complete dissolution or destruction of a target before recovery of any irradiation products, the repeated reuse of the same physical target allowed by targetry coupled separation represents a significant increase in efficiency and decrease in cost over the prior art.

The utility model relates to the technical field of industrial irradiation devices, and provides an irradiation box positioning mechanism and an irradiation device.The irradiation box positioning mechanism is applied to the irradiation device and comprises a box body, a plurality of conveying shafts, a clamping frame, a supporting plate, a positioning mechanism, a rotating mechanism and an adjusting mechanism, the plurality of conveying shafts are rotatably connected in the box body, the plurality of clamping frames are arranged in the box body, the supporting plate is arranged in the box body, the positioning mechanism is arranged in the box body and used for positioning the irradiation box, the rotating mechanism is arranged in the box body and used for supporting the irradiation box to rotate, and the adjusting mechanism is arranged in the box body and used for adjusting the irradiation box to rotate. According to the technical scheme, the problems that in the related technology, due to the fact that the shielding and clamping positions of the clamping plates are difficult to be irradiated by irradiation, the irradiation box is difficult to be irradiated by all directions, and the irradiation effect of the irradiation is affected are solved.

The invention provides an irradiation system, devices, and methods. The irradiation system includes a shielded housing; at least one canister disposed within the shielded housing, the at least one canister containing a material for irradiation within an interior volume of the at least one canister; wherein the at least one canister has a body disposed between a first end cap disposed at a first end of the canister and a second end cap disposed at a second end of the canister opposed to the first end; an ionizing radiation source disposed within the shielded housing adapted for emitting an ionizing radiation having at least one selected incident irradiation field geometry directed generally at the body of the at least one canister; wherein at least one canister is disposed on a rotating mechanism for rotating the at least one canister about a central horizontal or longitudinal axis extending from an isocenter of the first end cap to an isocenter of the second end cap for increasing uniform distribution of radiation of the material contained within the canister.

A neutron source irradiation device capable of switching gas paths disclosed by the present invention comprises a gas path switching rotor assembly, a transmission pipeline and a plurality of storage pipelines, the transmission pipeline is provided with an electromagnetic chuck, and a neutron source is stored in each storage pipeline. And the transmission pipeline can be communicated with the different storage pipelines through rotation of the gas path switching rotor assembly, so that neutron sources in the different storage pipelines can reach the electromagnetic chuck through the transmission pipeline. Neutron sources at different positions can be transmitted to the same position for irradiation, an independent transmission irradiation structure is provided, the irradiation position structure is simple, the scattering influence can be reduced, meanwhile, different neutron sources have good repeatability and consistency at the irradiation positions, position adjustment of a measured instrument is not needed, the verification efficiency is improved, and the detection cost is reduced. And the stability and consistency error of the generated neutron radiation field are ensured.

Generation of impurity ions is prevented or reduced in a carbon ion generating device in which a laser-driven ion acceleration system is employed. A carbon ion generating device generates a carbonized region by irradiating a film made of an organic compound with a first laser beam, and generates carbon ions by irradiating at least a part of the carbonized region with a second laser beam.

A method including: obtaining an image of at least part of a substrate, wherein the image includes at least one feature manufactured on the substrate by a manufacturing process including a lithographic process and one or more further processes; determining one or more image-related metrics in dependence on a contour determined from the image, wherein one of the one or more image-related metrics is an edge placement error, EPE, of the at least one feature; and determining one or more control parameters of the lithographic process and / or the one or more further processes in dependence on the edge placement error, wherein at least one control parameter is determined so as to minimize the edge placement error of the at least one feature.

A neutron capture therapy system and a target for a particle beam generating device, which may improve the heat dissipation performance of the target, reduce blistering and extend the service life of the target. The neutron capture therapy system includes a neutron generating device and a beam shaping assembly. The neutron generating device includes an accelerator and a target, and a charged particle beam generated by acceleration of the accelerator interacts with the target to generate a neutron beam. The target includes an acting layer, a backing layer and a heat dissipating structure, the acting layer interacts with the charged particle beam to generate the neutron beam, the backing layer supports the action layer, and the heat dissipating structure includes a tubular member composed of tubes arranged side by side.

A method and an apparatus are provided for Electron Beam (EB) curing of coils that are coated with energy cured resins. The apparatus comprises a curing assembly, a microprocessor unit, one or more sensors, and a user interface. The curing assembly comprises of a fixed part and a movable part. The fixed part comprises a rotator and a first moving means. The movable part comprises of an accelerator. The fixed part and the movable part are movably coupled to each other using a coupler. The coupler is configured to move using a second moving means. The curing assembly is communicatively coupled to the microprocessor unit. The coil comes at the input gate at the fixed part of the curing assembly for the curing purposes and exits through the output gate at the fixed part of the apparatus after being cured.

An X-ray irradiation apparatus (100) comprises an X-ray source device (110) for creating X-rays (2) with a polychromatic spectrum and an X-ray optic device (120) with a beam axis (3) that is longitudinal, wherein the X-ray optic device (120) comprises a reflector device (121) that is polycrystalline having a reflector geometry, a reflector mosaicity and a reflector thickness and the reflector device (121) is arranged for receiving a portion of the X-rays (2) within an acceptance angle of the reflector device (121) and for creating an X-ray beam (4) by Bragg reflection, which is directed along the beam axis (3) towards a focal position thereof and has a spectral distribution determined by the polychromatic spectrum of the X-rays (2), the reflector geometry, the reflector mosaicity and the reflector thickness, and wherein the X-ray irradiation apparatus (100) further comprises a spectral filter aperture device (122) that is arranged downstream from the reflector device (121) for creating a filter gap (123) transmitting a first spectral portion (4A) of the spectral distribution of the X-ray beam (4) and blocking a second spectral portion (4B) and a third spectral portion (4C) of this spectral distribution, wherein the first spectral portion (4A) has higher energies than the second spectral portion (4B) and lower energies than the third spectral portion (4C), wherein the reflector device (121) has an acceptance solid-angle of at least 100 micro-steradian, and wherein the reflector geometry, the reflector mosaicity, the reflector thickness and the acceptance angle of the reflector device (121) are selected such that simultaneously a radiation flux in the first spectral portion (4A) is at least 1% of an incoming flux of the same spectral portion of the X-rays (2) received by the reflector device (121) with a peak reflectivity of at least 1%, the first spectral portion (4A) has a spectral bandwidth of at most 15%, the second and third spectral portions (4B, 4C) have a flux reduced by at least three orders of magnitude compared with the flux in the first spectral portion (4A), and the X-ray beam (4) has a focal spot size of less than 1.5 mm in both transverse dimensions relative to the longitudinal beam axis. Furthermore, an X-ray fluorescence imaging apparatus (200) and a method of using the X-ray irradiation apparatus (100) are described.

The invention relates to the technical field of research reactor material irradiation, and provides a variable thermal resistance structure suitable for material irradiation temperature adjustment and a design method, the variable thermal resistance structure comprises a protection tube and a to-be-tested sample arranged in the protection tube, an elastic thermal resistor is arranged between the protection tube and the to-be-tested sample, and the elastic thermal resistor is in contact with the protection tube and the to-be-tested sample at the same time; the cross section of the elastic thermal resistor is of an annular structure formed by continuous bending, inert gas is further filled between the protection tube and the sample to be tested, the elastic thermal resistor is in contact with the outer wall of the sample to be tested and the inner wall of the protection tube at the same time, heat transfer of an original air gap layer is changed, and heat transfer performance is enhanced; meanwhile, the elastic thermal resistor formed by bending has certain ductility, so that the outward heat transfer capacity of the sample to be tested in the irradiation test is enhanced, the influence of thermal expansion on heat transfer is reduced, and the irradiation test requirements of various materials are met; parameter determination is carried out through an out-of-pile verification test, and in-pile condition tests are combined, so that the elastic thermal resistance meeting the requirements is rapidly screened out.

To provide an electron beam output device for medical use which can irradiate a target site with an electron beam by adjusting the direction of the accelerated electron beam and outputting it, and allowing the electron beam to pass through a narrow region, and can perform irradiation not only in the linear output region in the direction in which the electron beam is accelerated but also in the lateral region outside the linear output region.SOLUTION: The present disclosure relates to an electron beam output device for medical use. The electron beam output device includes at least: an electron beam generator that generates an electron beam having a pencil beam shape; an electron beam accelerator that receives the electron beam generated by the electron beam generator and accelerates the received electron beam; a catheter through which the electron beam received from the electron beam accelerator passes, and which is placed to be directed toward a target site, or is configured to enter an inner passage of the target site; and a first magnetic field generator that is provided in the catheter and generates a magnetic field that refracts the electron beam that is outputted from the catheter.SELECTED DRAWING: Figure 1

A target for a neutron generation device includes a target material that is to be irradiated with a proton beam to generate neutrons; a substrate in which a recessed portion that holds the target material is provided; and a metal foil for sealing the target material held in the recessed portion. The target material is a lithium alloy material in which a part or an entire portion of lithium is alloyed. The target material and the substrate are alloyed and joined together. A method for producing a target involves placing a precursor made of metal lithium or a lithium alloy in the recessed portion; alloying the precursor and the substrate with each other to be joined together by heating the substrate and the precursor to melt the precursor, and then, solidifying the precursor; and joining the metal foil on the substrate to which the precursor has been joined.

A radiation device comprises at least a vacuum chamber (1), an electromagnetic accelerator (8) for generating a primary energy beam of ions inside the vacuum chamber (1), and a layer of material (S) carried by a support (4) rotating in the vacuum chamber (1) to generate a flow of particles when a series of nuclear fusion reactions are triggered on the material (S) thanks to the energy of said beam, and wherein the support (4) is hollow and sealed defining a rotating three-dimensional surface that surrounds a containment volume for a cooling liquid in heat exchange with the layer of material (S), such rotating three-dimensional surface defining a heat exchange surface wetted by the liquid, and wherein a level of the free surface of the liquid on the heat exchange surface moves upwards in use due to the action of the centrifugal acceleration generated by the rotation of the support (4).

The utility model discloses a mobile cable irradiation work platform and an electron accelerator system, the mobile cable irradiation work platform comprises a platform base, a shielding device, a take-up and pay-off device and a wire guide wheel set, and the bottom of the platform base is provided with a mobile device; the shielding device comprises a shielding wall main body which is vertically arranged at the rear part of the platform base; the take-up and pay-off device is used for loading and unloading a cable, and the cable on the take-up and pay-off device is connected with the wire guide The wire guide wheel set guides a cable on the take-up and pay-off device to the rear side of the shielding wall body. The electron accelerator system comprises a shielding shell and an electron accelerator; when the platform base moves to an operation position, the shielding wall body and the shielding shell form a shielding cavity, and an electron beam outlet of the electron accelerator is aligned with a cable on the rear side of the shielding wall body in the shielding cavity. The self-shielding device can be matched with a miniaturized electron accelerator to form a self-shielding structure, the occupied space is greatly reduced, the installation is convenient, and the production efficiency can be improved.

Targetry coupled separation refers to enhancing the production of a predetermined radiation product through the selection of a target (including selection of the target material and the material's physical structure) and separation chemistry in order to optimize the recovery of the predetermined radiation product. This disclosure describes systems and methods for creating (through irradiation) and removing one or more desired radioisotopes from a target and further describes systems and methods that allow the same target to undergo multiple irradiations and separation operations without damage to the target. In contrast with the prior art that requires complete dissolution or destruction of a target before recovery of any irradiation products, the repeated reuse of the same physical target allowed by targetry coupled separation represents a significant increase in efficiency and decrease in cost over the prior art.