355results about "Irradiation devices" patented technology

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.

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.

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.

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.

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.

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).

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 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 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.

A device for concentrating ionizing radiation fluence is disclosed having a coupling structure linking the external radiotherapy device with linear accelerator to an external structure, whose central axis is hollow with an input window through which electrons enter attaching to the rotation device; a rotation system linking the coupling structure with a coupling flange rotating an inner structure; a deflection system in the inner structure, wherein the deflection system has first and second magnetic deflection devices; a system for controlling the focal point, which is in the electron deflection system, having an electronic control system controlling a set of motors that produce coordinated movements of the second magnetic deflection device, a correction element and a collimator, which change the position of the focal point; and at least two laser diodes on the edge of the collimator pointing towards the focal point determining the position of the electron beam generated.

An irradiation target for the production of radioisotopes comprises a plurality of plates having aligned central openings. First and second elongated central members extend in opposite directions through the aligned central openings of the plates. The first and second elongated central members each have a pair of wings at first and second ends of the plurality of plates, respectively. The first and second elongated central members further have a pair of tabs adjacent to the wings of the other elongated central member. Tabs of the first elongated central member are bent to engage one end face of the plurality of plates. Tabs of the second elongated central member are folded over the wings of the first elongated central member. The plates and the first and second elongated central members are formed of materials that produce molybdenum-99 (Mo-99) by way of neutron capture.

A method of designing an assembly includes defining an observable field, defining a model of the assembly based on a set of parameters, and performing an inverse optimization of the set of parameters such that the model of the assembly after activation produces the observable field. An assembly includes a first material and a second material. The assembly is configured to be differentially activatable via particle bombardment. An observable field of the assembly is complex. Advantageously the differentially activatable assembly can be stable prior to activation, self-contained, activated after construction, and provides unique three-dimensional or four-dimensional observable fields.

An irradiation station for producing a radioisotope, having a cyclotron (32) for emitting a proton beam (B) against a solid target material (M) placed in a container (1) and a cooling system (33) for cooling the container (1). The container (1) has a wall (4) for supporting the solid target material (M) and a cavity (12), which borders the wall (4) and has an opening (14) transverse to the axis of the container (1). The cooling system (33) has a connection head (34) which is couplable to the opening (14) for circulating a cooling fluid in the cavity (12) and comprises a flow diverter (37), a tip (47) protruding from a hole (46) of the flow diverter (37) and movable along the hole (46) against the action of a spring (48) in contact with the tip (47), and an electrical connector (52) in contact with the spring (48). When the connection head (34) is coupled to the opening (14) the flow diverter (37) enters the cavity (12) coaxially with the container (1) and the tip (47) presses against the wall (4).

A radiation effects testing system that includes a sample test housing comprising a housing body and a sample chamber within the housing body and a neutron generator comprising a beam accelerator configured to generate an ion beam, a target chamber, and a beamline extending from the beam accelerator to the target chamber. The sample test housing and target chamber are each housed in a bunker comprising a bunker floor and one or more bunker walls, water is positioned in the bunker forming a water pool, and the sample test housing and the target chamber are positioned in the water pool.

An electron exit window foil (106) for an electron beam emission device (100) having an electron beam generator (103) and operating in a corrosive environment (P1) is disclosed. The electron exit window foil (106) has a sandwich structure with an outer surface arranged to face the corrosive environment (P1) and an inner surface arranged to face the electron beam generator (103). The sandwich structure includes, from the outside to the inside, a protective layer for protecting the sandwich structure from the corrosive environment (P1), a Ti support layer for providing structural support to the sandwich structure, and an Al thermally conductive layer for conducting heat from the sandwich structure.

An irradiation target for the production of radioisotopes, having at least one plate defining a central opening, and a first elongated central member passing through the central opening of the at least one plate so that the at least one plate is retained thereon, wherein the at least one plate and the first elongated central member are both formed of materials that produce molybdenum-99 (Mo-99) by way of neutron capture.

In an embodiment of the present disclosure provided is a method of producing radionuclides that includes the installation, irradiation, transport, and trapping steps. In the installation step, a target material containing a target nuclide is placed inside a target chamber. In the irradiation step, at least a portion of the target material is irradiated with a quantum beam. In the transport stage, a carrier gas is supplied to the inside of the target chamber and an ambient gas around the target material is sent to the outside of the target chamber through an exhaust pipe. In the trapping step, a trap device connected to the exhaust pipe is configured to trap the radionuclides produced from the target nuclide from the ambient gas. In the present embodiment of the present disclosure, the target nuclide is bismuth 209 and the produced radionuclide is astatine 211. In an embodiment of the present disclosure, a target holding device 100 for quantum beam irradiation comprising a target material container 3 and a rotational drive mechanism 5 is also provided, as well as a quantum beam irradiation system 1000. An example target material container is rotatable.

The invention discloses an X-ray focusing optical system based on coupling of a single capillary tube and a refraction lens and a manufacturing method, and belongs to the technical field of X-ray focusing optical devices. Comprising an X-ray light source, a single-capillary X-ray lens and a two-dimensional diamond refraction lens, the two-dimensional diamond refraction lens is arranged between the X-ray light source and the single-capillary X-ray lens, and the focal points of the single-capillary X-ray lens and the two-dimensional diamond refraction lens coincide; the single-capillary X-ray lens is a paraboloid type single-capillary X-ray lens or an ellipsoid type single-capillary X-ray lens, and the two-dimensional diamond refraction lens is of a revolution paraboloid structure. The two-dimensional diamond refraction lens is adopted to replace a traditional light beam stopper, the design that the focus of the single-capillary X-ray lens and the focus of the two-dimensional diamond refraction lens coincide is combined, double focusing regulation and control of X-rays are achieved, and optical loss is greatly reduced.

The application relates to a target assembly for the irradiation area of a pneumatic rabbit system for medical isotope preparation, comprising a terminal transmission pipeline and a rabbit capsule, wherein the terminal transmission pipeline comprises a main transmission pipeline, an outer pipeline, an air path sealing piece and a pipeline end head; the two ends of the main transmission pipeline are connected with the air path sealing piece and the pipeline end head respectively, so as to form a main transmission air path; the outer pipeline comprises a middle layer sleeve and an outer layer sleeve; the middle layer sleeve is sleeved outside the main transmission pipeline and connected with the air path sealing piece and the pipeline end head at the two ends respectively, so as to form a middle layer ventilation channel; the outer layer sleeve is sleeved outside the middle layer sleeve and connected with the air path sealing piece and the pipeline end head at the two ends respectively, so as to form an outer layer ventilation channel; the middle layer ventilation channel and the outer layer ventilation channel are communicated with the main transmission air path; the air path sealing piece is used for air supply and exhaust; the rabbit capsule is used for loading and transporting isotope targets, and the rabbit capsule is arranged inside the main transmission pipeline of the terminal transmission pipeline; the target assembly has the functions of transmission, buffering and heat dissipation.

This invention provides a neutron irradiation device that can deliver neutrons tailored to the patient's body shape and the affected area during BNCT treatment. The neutron irradiation device is a neutron generator attached to a robot arm, comprising: a neutron generator capable of emitting neutrons emitted from a neutron source through an opening formed in the housing; and a deceleration module detachably attached to the opening for slowing down neutrons emitted from the neutron source.

[Problem statement] Provision of a technology relating to a window holding section, an X-ray generator, an X-ray analyzer, a control method for an X-ray generator and a control system for an X-ray generator, wherein the technology is such that it is not necessary to provide an X-ray observation section in a vacuum area and that it is not necessary to use any part of the X-rays used for the measurement of the X-ray analysis. [SOLUTION] According to one embodiment of the present invention, an X-ray generator (20) is provided. The X-ray generator (20) is equipped with an X-ray generating unit (203a) and an X-ray transmission window. The X-ray generating unit (203a) is configured to generate X-rays by receiving an electron beam from an external source. The X-ray transmission window comprises a first X-ray transmission window (204a) and a second X-ray transmission window (205a). The first X-ray transmission window (204a) is configured to transmit first X-rays (L1) directed in a first direction (D1) among the X-rays. The first X-rays (L1) fall onto an X-ray observation section (21) that is arranged on the optical axis of the first X-rays and that can observe the X-ray focal point of the X-rays.The second X-ray transmission window (205a) is arranged such that it transmits second X-rays (L2) from the X-rays, which are oriented in a second direction (D2) that differs from the first direction (D1).

To provide an electron beam irradiation device capable of improving discharge performance of liquid from an irradiation chamber.SOLUTION: The shielding body 32 includes a first divided body 41, a second divided body 42 forming the irradiation chamber 31 by being combined with the first divided body 41, and an auxiliary shielding part 44 covering the outdoor side of the irradiation chamber 31 at a joint 43 which is a boundary part between the first divided body 41 and the second divided body 42. The seam 43 of the shield 32 has a lower surface region 43a located on the lower surface of the shield 32 in the vertical direction Da. The auxiliary shielding part 44 includes a lower shielding part 51 for covering the outdoor side of the irradiation chamber 31 in the lower surface part 43a of the joint 43. The lower shield part 51 includes a discharge passage 61 for discharging the liquid flowing out to the outside of the irradiation chamber 31 from the inside of the irradiation chamber 31 through the lower surface region 43a of the joint 43.SELECTED DRAWING: Figure 2

An object of the present invention is to provide a charge stripping film in a charge stripping device of an ion beam, which has high heat resistance and no toxicity, with which there is no risk of activation, with which an ion beam can be made multivalent even if the charge stripping film is thin, and which is resistant to high-energy beam radiation over an extended period of time. The present invention comprises a charge stripping film used in a device which strips a charge of an ion beam, wherein the charge stripping film is a rotary charge stripping film comprising a carbon film having a thermal conductivity of 20 W / mK or more in a film surface direction at 25°C, and a film thickness of the carbon film is more than 3 µm and less than 10 µm. The present invention also comprises a charge stripping film used in a device which strips a charge of an ion beam, wherein the charge stripping film is a rotary charge stripping film comprising a carbon film produced by a polymer annealing method, and a film thickness of the carbon film is more than 3 µm and less than 10 µm.