823results 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 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.

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.

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 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 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.

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.

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.

The invention relates to the technical field of fusion reactor tritium fuel circulation, in particular to an irradiation pretreatment platform and method for a tritium breeding material. The platform comprises a control system, a heating system, an early warning system, a purging system, a welding system and a collecting system. The heating system is connected with the control system and is used for heating a sample; the early warning system is connected with the control system, and the early warning system is used for monitoring environment parameters and heating parameters and sending out early warning information; the purging system is connected with the control system, and the purging system is used for vacuumizing the sample container and replacing gas; the welding system is used for cutting the sample container heated by the heating system; the collecting system is used for automatically packaging the cut sample containers; wherein the welding system and the collecting system are respectively connected with the control system through wiring pipelines. The tritium breeding material can be efficiently pretreated, manual intervention is reduced, and safety is guaranteed.

Disclosed herein is a method and system for identifying an issue with a radiotherapy device and outputting a next step, the radiotherapy device comprising a linear accelerator and being configured to provide therapeutic radiation to a patient, the method comprising: obtaining data relating to an operational state of the radiotherapy device or a component thereof identifying an issue with the radiotherapy device based on the obtained data; and outputting a next step based on the identified issue. There is also disclosed a method for limiting or changing a radiotherapy device functionality.

A radiation dose rate control method, which relates to the technology of radiation, and an accelerator (100). The control method is used for an electron linear accelerator (100) comprising a microwave source, an electron gun (102) and an accelerating tube (104). The control method comprises: when an electron linear accelerator (100) outputs a beam, monitoring a first event used for indicating a change of a beam output parameter (S610), wherein the beam output parameter comprises a pulse of an electron gun (102) and a microwave power of a microwave source, and the first event is determined by means of radiation protection requirements; and in response to monitoring the first event, cutting off the pulse of the electron gun (102), and switching a first microwave power of the microwave source to a second microwave power, so that the leakage dose rate of a radiation safety boundary is less than or equal to a first preset threshold (S620), wherein the level of dark current in an accelerating tube (104) under the second microwave power is less than or equal to a second preset threshold. Further provided are a radiation dose rate control apparatus, an accelerator (100), and a radiation apparatus.

A container for a solid target material and a radioisotope produced by proton beam irradiation of the solid target material, the container having: a well, which is suited to support on its own bottom wall a portion of solid target material; a support body, which extends along a longitudinal axis and has a seat for housing the well in such a way that the bottom wall is arranged transversely to the longitudinal axis; and a lid, which comprises a central portion having a degrader foil for degrading the proton beam and can be fitted on the support body so that the central portion is arranged in the well to retain the portion of solid target material on the bottom wall and that the degrader foil is arranged above the portion of solid target material.

The invention relates to the technical field of electron accelerators, in particular to an ultrahigh frequency electron accelerator capable of under-beam automatic turnover conveying, which comprises a box body, an electric conveying belt, an electron beam emitter, a clamping mechanism, a turnover mechanism, an arrangement mechanism and an anti-deviation mechanism, and is characterized in that the electric conveying belt is fixedly arranged on the box body, and the electron beam emitter is fixedly arranged on the box body; the clamping mechanism is fixedly installed on the electric conveying belt and used for clamping objects on the electric conveying belt, and the overturning mechanism is fixedly installed on the clamping mechanism and used for overturning the clamped objects. According to the ultrahigh-frequency electron accelerator capable of automatically overturning and conveying under the beam, through the arranged clamping mechanism and the overturning mechanism, the clamping plate can be driven to automatically clamp and overturn goods conveyed under the beam, so that a uniform irradiation effect can be performed on multiple side surfaces of the goods, and the working efficiency and the irradiation effect of the electron accelerator are improved.

Provided is a particle beam treatment system capable of more effectively radiating a particle beam. This particle beam treatment system comprises: a radiation device 25 for radiating particle beams B1, B2; and a control device 40 for controlling the radiation device. The control device causes the plurality of particle beams B1, B2, which are for different purposes but are of the same type, to be radiated from the radiation device to an irradiation subject 31 at different timings.

An aperture member narrows an irradiation range of primary X-rays generated by an X-ray tube. The analysis unit analyzes fluorescent X-rays generated from a sample when the sample is irradiated with the primary X-rays that have passed through the aperture member. The aperture member includes a first opening formed on an incident side of the primary X-rays, a second opening formed on an emission side of the primary X-rays, and a hole formed between the first opening and the second opening to allow the primary X-rays to pass through. The aperture member includes a shielding portion formed on an inner surface of the hole, the shielding portion being formed between the X-ray tube and the peripheral portion of the second opening and on a side outer than a straight line connecting the X-ray tube and the edge portion of the second opening.

This invention relates to a pre-fabricated tritium target based on a polycrystalline film and its manufacturing method, belonging to the field of plasma technology. The pre-fabricated tritium target includes an oxygen-free copper target substrate, a first zirconium film, a high-entropy ceramic tritium-blocking layer, and a second zirconium film sequentially deposited on its surface. The manufacturing method includes: pre-treating the oxygen-free copper target substrate; sequentially depositing multiple layers of films using a magnetron sputtering process to form a polycrystalline film layer; purging the oxygen-free copper target substrate with the polycrystalline film layer with tritium; and bonding the oxygen-free copper target substrate to an oxygen-free copper target holder. The pre-fabricated tritium target based on a polycrystalline film of this invention solves the problem of balancing heat dissipation and tritium blocking performance in traditional processes, achieving a balance between heat dissipation and tritium blocking capabilities. This allows the prepared pre-fabricated tritium target to be reused, improving the utilization rate of the pre-fabricated tritium target and reducing the cost of using neutron tubes.

To provide an X-ray irradiation device.SOLUTION: The present invention relates to a device for irradiating goods (1g) with X-rays (11x, 12x), the device comprising a first X-ray source (11) configured to emit X-rays along a first irradiation volume (11x) centered on a longitudinal axis (X), and a conveyor (3h, 3v) configured to drive goods so as to expose a first portion of the goods (1g) through the first irradiation volume. The conveyor (3v) is configured to drive target products (1) through the irradiation volume (11x) along a vertical axis (Z).SELECTED DRAWING: Figure 5

The present invention accurately adjusts the film thickness of a liquid starting material.　A light-emitting unit according to one aspect of the present technology comprises a housing part, an accommodation part, a rotation body, a first film thickness adjustment mechanism, and a shield body. An energy beam can pass through the housing part. The accommodation part is disposed inside the housing part and can accommodate a liquid starting material. The rotation body is rotatable about a rotation axis in a direction intersecting a gravity direction, and has a first region which is immersed in the liquid starting material accommodated in the accommodation part, and a second region which is located downstream of the first region in the rotation direction of the rotation body, to which the liquid starting material adheres, and which includes an energy beam irradiation position. The first film thickness adjustment mechanism is disposed at a position upstream of the irradiation position, and adjusts the film thickness of the liquid starting material adhering to the second region to a first film thickness. The shield body is disposed between the first film thickness adjustment mechanism and the liquid surface of the liquid starting material accommodated in the accommodation part and between the second region and the housing part, and has an opposite surface facing the liquid surface in a vertical direction.

A linear accelerator in data communication with a computing device and a programmable logic controller and including a magnetron, an electron gun that is configured to direct an accelerated beam of el