584results about "Irradiation devices" patented technology

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 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.

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.

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 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.

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.

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 relates to an electron beam therapy device and system, and the device of the present invention includes an electron beam output unit that generates, accelerates and outputs an electron beam, a catheter unit that is connected to the electron beam output unit on one side and receives the electron beam output from the electron beam output unit and passes the electron beam through a hollow tunnel of the catheter, a magnetic field generating unit that generates a magnetic field for refracting the electron beam passing through the hollow tunnel of the catheter, and a joint driving unit that provides freedom of organic movement of the electron beam output unit, the catheter and the magnetic field generating unit, and the catheter unit can adjust the movement and rotation angle of the catheter in response to control of a control unit.

A method and apparatus for producing radioisotopes. The method includes generating fast neutrons by irradiating a neutron producing target with a deuteron beam from a deuteron accelerator. These fast neutrons directly irradiate a first sample. The fast neutrons that pass through the first sample undergo multiple-scattering by a neutron scattering material made of a light element positioned around both the neutron producing target and the first sample. This arrangement generates various radioisotopes simultaneously in large amounts from both the first sample and a second sample through nuclear reactions. The method enables production of multiple radioisotopes in a single process for applications in medicine, research, education, agriculture, and industry.

The present application relates to the technical fields of research reactor material irradiation, and specifically relates to a kind of with autonomous rotating function's pressure hole irradiation device, including remote terminal and sequentially connected driving section, protection tube and test section, driving section is set in the pressure hole mouth outside, including transmission shaft, power transmission component, servo motor and controller, transmission shaft is connected with protection tube, servo motor is installed in the side direction of transmission shaft, controller is electrically connected with servo motor, remote terminal is connected with controller, power transmission component includes transmission shaft gear and the motor gear meshed with transmission shaft gear, transmission shaft gear is coaxially keyed with transmission shaft, motor gear is coaxially keyed with servo motor output shaft;Transmission shaft and protection tube are provided with the gas outlet pipe and several gas inlet pipes communicated with test section.In the present application, the mode of remote control of servo motor is used, the irradiation device of the test piece can be realized autonomous rotation and test piece temperature control function, and the accuracy and reliability of test result are improved.

One exemplary adjustable collimator includes a housing having an aperture through which radiation is directed from an entrance to an exit of the housing, a first shutter 206 and a second shutter 208 within the housing, a first link 222 coupled to the first shutter, and a first yoke 218 coupled to the housing at a pivot point (at 220) and configured to pivot relative to the housing. The first yoke is configured to reduce the effective width of the aperture by moving the first shutter toward the second shutter via the first link when the first yoke is rotated in a first direction (here, clockwise).

An anode potential adjustment device and an electron accelerator. The electron accelerator comprises a first electrode sheet (201), a second electrode sheet (202) and a high-voltage end (203), wherein the high-voltage end (203) is connected to the first electrode sheet (201). The anode potential adjustment device comprises a varistor (101) and an oil cylinder (102), wherein the varistor (101) is connected between the first electrode sheet (201) and the second electrode sheet (202); and the oil cylinder (102) is connected to a hydraulic pump by means of a hydraulic oil pipe, a piston of the oil cylinder is connected to the varistor (101), and the piston is configured to drive the varistor (101) to adjust a resistance value. The anode potential adjustment device can observe changes of a beam in real time when a high voltage and the beam exist at the same time, thereby making it easier to select an anode resistor (1010).

Disclosed is a radiation and magnetic field generating apparatus irradiating photon beam radiation to in-body affected tissue of a subject including a radiation generating unit that irradiates the photon beam radiation to the subject and induces generation of secondary electrons in an area of the subject where the photon beam radiation is irradiated, a magnetic field generating unit, which is provided to be inserted into a body, which includes an insertion structure for forming a low-density space, and which forms a magnetic field in an area in which the secondary electrons are generated, and a synchronization control unit that controls formation of the magnetic field such that at least part of the secondary electrons moves to the low-density space based on a relationship between an area where the photon beam radiation is irradiated and a location of an affected part, and controls the formation of the magnetic field such that the secondary electrons move while avoiding normal tissue adjacent to the affected tissue.

To provide an electronic beam irradiation device in which a conductive path having a bent shape can be easily assembled to a pressure vessel.SOLUTION: An electron beam irradiation device 10 comprises: a power supply unit 14; an acceleration unit 13 that accelerates an electron beam Eb based on power supplied from the power supply unit 14; a conductive path 30 that electrically connects the power supply unit 14 and the acceleration unit 13; and a pressure vessel 20 that houses the power supply unit 14, the acceleration unit 13, and the conductive path 30. The conductive path 30 comprises: a first divided conductive path 31 that is electrically connected to the power supply unit 14; a second divided conductive path 32 that is electrically connected to the acceleration unit 13; and a connection part 33 that connects the first divided conductive path 31 and the second divided conductive path 32. The conductive path 30 has a bent shape in which an extension direction of the first divided conductive path 31 and an extension direction of the second divided conductive path 32 intersect each other.SELECTED DRAWING: Figure 2

The application discloses a kind of gamma irradiation medium modules, including irradiation container and the several medium modules being arranged in irradiation container, irradiation container and medium module are cuboid structure;The length and height of single medium module are slightly less than the length and height of irradiation container one third respectively, the width of single medium module is slightly less than the width of irradiation container;The number of all medium modules=the number of medium module in full load in irradiation container * irradiation station number, irradiation station is used to place irradiation container;A dose field test and analysis method for gamma irradiation medium module is also disclosed.The application clearly medium module in irradiation container in loading mode and related parameters such as radiation safety, clearly irradiation device dose field is carried out mathematical simulation, the establishment of OQ dose field test coordinate system, dose meter is laid out mesh and point, the analysis use method of actual measurement dose data, provides proof data and technical basis, effectively improves core technical ability and quality assurance ability.

The utility model provides an electron accelerator irradiation safety protection system comprising an irradiation protection body, the irradiation protection body comprises an accelerator chamber used for placing an accelerator, and a monitoring center isolated from the accelerator chamber through an inspection channel; the inspection channel forms a U-shaped channel around the accelerator chamber; the inspection channel is communicated with the monitoring center through the first electric door, the accelerator chamber is communicated with the inspection channel through the second electric door, the first electric door and the second electric door are located at the two ends of the inspection channel respectively, direct contact between a radiation area and the outside is effectively isolated by arranging the radiation protection body, and the safety of operators is ensured; meanwhile, it is guaranteed that the flow entering the accelerator chamber from the outside is clear and orderly, and the working safety and efficiency are improved.

A method that includes accelerating ions toward a lattice of carbon fibers and capturing the ions in the lattice of carbon fibers.

A sterilization apparatus (7) for sterilizing packaging materials (3) comprises one or more radiation beam emitters (20), each configured to emit a radiation beam. Each radiation beam emitter (20) comprises a main housing (21) having an interior space (22) and an exit window (23), and a radiation source (24) arranged within the interior space (22) and configured to generate a radiation beam and cause the radiation beam to exit the interior space (22) through the exit window (23). The exit window (23) comprises a window (25) having carbon.

The present invention provides a method, terminal, and medium for obtaining a target thickness of a hydrogen embrittlement-resistant layer of a neutron source target. The method includes: using a physical field fitting method to perform hydrogen diffusivity fitting based on deposition distribution and thermal performance fitting based on energy distribution on a target including a hydrogen embrittlement-resistant layer to obtain a hydrogen atom concentration distribution characteristic and a corresponding temperature distribution characteristic corresponding to the current thickness; detecting whether the hydrogen atom concentration distribution characteristic satisfies a predetermined condition for the hydrogen atom concentration field and whether the temperature distribution characteristic satisfies a predetermined condition for the temperature field; and, if both conditions are satisfied, setting the current thickness of the hydrogen embrittlement-resistant layer as the target thickness of the hydrogen embrittlement-resistant layer. This method makes it possible to quickly and easily obtain a target thickness of the hydrogen embrittlement-resistant layer that is compatible with the physical field performance of other layers in the target, thereby improving the hydrogen resistance performance of the target and effectively improving the overall performance of the target.

The particle beam therapy device is a charged particle beam therapy device that irradiates a patient with a helium ion beam to perform treatment, wherein where another beam, for example, a deuterium beam, that differs in a nuclide from the helium ion beam is generated from a cation beam, a mixed beam in which the helium ion beam and the other beam are mixed is passed through a deflecting magnetic field of a deflecting electromagnet, and then the helium ion beam of the mixed beam is selectively passed by a passage selection unit.