30 results about "Dipole magnet" patented technology

The invention discloses a compact multipurpose proton beam system, belongs to the field of radiotherapy, and solves the problem that a treatment terminal of an existing proton beam system is single in type and not compact enough. The superconducting isochronous cyclotron system is connected to the two-way selection system through the beam adjusting system, the two-way selection system comprises a two-way dipole magnet and two branch selection systems, and the two branch selection systems are connected to the rear end of the two-way dipole magnet in parallel. The system also comprises a beam transport system, and the beam transport system is composed of a first treatment terminal section, a second treatment terminal section and a third treatment terminal section. One branch selection system is connected to the fixed experiment beam transport system through the first treatment terminal section, the other branch selection system is connected to the fixed pen-shaped beam transport system through the second treatment terminal section, the third treatment terminal section is a branch of the second treatment terminal section, and the third treatment terminal section is connected to the rotary beam transport system. According to the invention, the beam irradiation of the multi-type and multi-purpose treatment terminal is realized by utilizing the design of a bidirectional selection system.

The present application belongs to the technical field of high-end medical equipment. Disclosed are a multi-room particle therapy room, a radiotherapy system, and a particle accelerator movement method. The multi-room particle therapy room comprises a plurality of treatment rooms. The radiotherapy system comprises the multi-room particle therapy room and a particle accelerator. Each treatment room is provided with a beam window. The particle accelerator can move outside different treatment rooms and is aligned with the beam windows. The particle accelerator directs particle beams into the treatment rooms by means of the beam windows. The particle beams perform radiotherapy by means of therapy heads in the treatment rooms. The radiotherapy system is not provided with a dipole magnet or a quadrupole magnet. The plurality of treatment rooms share one particle accelerator. The particle accelerator is moved to the outside of the treatment room requiring the particle beam, and the particle beam is directed into the treatment room by means of the beam window. When the treatment in the treatment room is completed, the particle accelerator is moved to other treatment rooms requiring the particle beams and performs treatment work, thereby reducing the overall cost of the radiotherapy system and making proton therapy accessible.

A gas separation device for separating and containing various types of gases from a collection chamber based on different atomic masses is disclosed. The chamber is connected to an ion diverter by a valve that, when opened, allows various types of gases to migrate from the collection chamber to an ionizer in which the gases are ionized. The ionized gas is accelerated by the ion accelerator and distributed into the ion deflector. The ion deflector includes a magnetic field within a channel defined by a pair of split-pole magnets. The trajectory of the ions is based on the ion mass of the separated ions. A plurality of collectors are located at different locations on the exit side of the ion deflector for receiving different ions moving along respective trajectories.

The application relates to an arc-shaped superconducting magnet system for proton acceleration, which comprises an arc-shaped superconducting magnet, an ultralow-temperature system and a magnet suspension system, wherein the arc-shaped superconducting magnet comprises a dipole magnet, two quadrupole magnets and a magnet fastening structure; the ultralow-temperature system comprises a vacuum container, a cold shield structure, a liquid helium container, a gas return pipe, a refrigerating unit and a cold conducting structure; the magnet suspension system comprises a liquid helium container pull rod assembly and a cold shield structure pull rod assembly; the arc-shaped superconducting magnet provides a magnetic field required by proton acceleration, the ultralow-temperature system is used for providing a stable ultralow-temperature environment for the superconducting magnet, and the magnet suspension system keeps the arc-shaped superconducting magnet in a stable spatial physical position; the three are combined to form a complete arc-shaped superconducting magnet system suitable for proton acceleration; the application has the advantages of small volume, light mass, low operation cost, safer radiation protection and the like.

Magnet assemblies, e.g., dipole magnet assemblies, with integrated charged particle beam dumps and systems containing the same are described. Examples of a dipole magnet assembly include a dipole bending magnet and a channel assembly configured with a charged particle beam dump. The dipole magnet can be configured to generate a uniform magnetic field within the channel assembly that bends a trajectory of a charged particle beam. The channel assembly can be configured to support a vacuum for the charged particle beam while absorbing secondary-state particles using the charged particle beam dump. The charged particle beam dumps can be releasably secured to the channel assembly, welded to the channel assembly, or inserted into the channel assembly. Each charged particle beam dump can utilize an active cooling system such as cooling tubes or an embedded cooling channel to mitigate excessive heat generation from secondary-state particle absorption. Materials are also described.

The invention discloses a quadrupole magnet and dipole magnet combined isotope ion separation method and a quadrupole magnet and dipole magnet combined isotope ion separation system, and the separation method comprises the following steps: S1, an ion source leads out a strip-shaped beam with certain energy and a divergence angle, and the beam contains target isotope ions to be separated; s2, the strip-shaped beam is freely transmitted through a field-free region in the vacuum pipeline and then enters a quadrupole magnet, and power is supplied to the quadrupole magnet so as to generate a quadrupole magnetic field used for beam focusing; s3, the strip-shaped beam passing through the quadrupole magnet is freely transmitted through a field-free region and then enters a dipole magnet, power is supplied to the dipole magnet so as to generate a dipole magnetic field used for beam deflection and target isotope ion separation, and after the strip-shaped beam passes through a dipole magnetic field group, high-purity target isotope ions are generated; the quadrupole magnet and dipole magnet combined isotope ion separation method can effectively reduce the loss of the beam in the transmission process, thereby improving the separation yield of the target isotope.

The utility model discloses a magnetic block installation structure of a permanent magnet deflection dipolar magnet, which relates to the technical field of magnet manufacturing and comprises an upper iron yoke, a base, a first permanent magnet block, a second permanent magnet block, a locking mechanism, a split type iron core frame, an upper pole head and a magnetic block pressing plate. The locking mechanism locks the first permanent magnet block in the upper iron yoke, the upper end of the upper iron yoke is provided with a base, the upper end of the first permanent magnet block is provided with an upper pole head, the periphery of the upper pole head is provided with a split iron core frame, the inner side of the split iron core frame is provided with a plurality of second permanent magnet blocks, and the upper ends of the plurality of second permanent magnet blocks are provided with magnet block pressing plates. And the magnetic block pressing plate is connected with the base. According to the utility model, through the arrangement of the locking mechanism and the split type iron core frame, an installation position and a fixing mode which are clear and easy to operate are provided for the permanent magnet block, the installation process can be simplified, and the installation efficiency can be improved.

A torque and angle of rotation detection system is rotatable about an axis of rotation and includes a stator unit separated from a rotor unit by an air gap disposed radially with respect to the axis of rotation. The rotor unit includes strain gauges, dipole magnets and a secondary coil with ferrite elements. The stator unit includes a magnetic field sensor and a primary coil wherein a primary electrical voltage in the primary coil generates a secondary electrical voltage in the secondary coil.

The present invention provides an ion source beam current screening and shaping device and method, belonging to the technical field of beam current processing and control. The device is arranged at the injection end of a linear accelerator. The ion source beam current screening and shaping device includes: an extraction and mixing section and a comprehensive processing section connected in sequence, wherein: the extraction and mixing section includes a focusing solenoid and a dipole magnet. The focusing solenoid is used for focusing and shaping the mixed ion beam extracted from the ion source, and the dipole magnet is used for screening out target particles that meet the specified specific energy and M / Q of the linear accelerator from the mixed ion beam current after focusing and shaping to obtain an initial ion beam current; the comprehensive processing section includes a focusing quadrupole magnet and a processing chamber. The focusing quadrupole magnet is used for adjusting the envelope sizes of the initial ion beam current in at least two directions on the longitudinal section; the processing chamber is used for processing the initial ion beam current into an injection ion beam current that meets the specified emission angle and envelope size of the linear accelerator.

Embodiments provided herein include rotatable magnets (e.g., spherical dipole magnets) disposed within sets of coils that can be used to operate the magnets as reaction / momentum “spheres” and / or as control moment gyroscopes. The coils are able to exert three-dimensional torques onto the magnet in order to effect attitude control of a satellite or other system. The coils can also optionally exert translational forces onto the magnet in order to maintain the magnet in position and avoid contact with static components. Diamagnetic materials can also be included to provide stabilizing repulsive magnetic forces to maintain the magnet in position and / or to reduce the necessary performance of the coils with respect to applying stabilizing translational forces.

The embodiment of the invention discloses a permanent magnet dipole magnet system for a high-current proton accelerator. The permanent magnet dipole magnet system comprises a main magnet and an auxiliary magnet which are sequentially arranged along a first direction, wherein the first direction is parallel to the movement propagation direction of the negative hydrogen beam to be stripped, and the first direction is parallel to the thickness direction of the main magnet and the thickness direction of the auxiliary magnet; the component of the magnetic field corresponding to the main magnet in the second direction is opposite to the component of the magnetic field corresponding to the auxiliary magnet in the second direction; wherein the second direction is perpendicular to the motion propagation direction of the negative hydrogen beam to be stripped, the first straight line is a straight line parallel to the second direction, and the main magnet and the auxiliary magnet are respectively in axial symmetry about the first straight line; the main magnet is used for improving the target main magnetic field intensity, the auxiliary magnet is used for improving the target edge magnetic field gradient, and the target main magnetic field intensity and the target edge magnetic field gradient act together to strip a negative hydrogen beam to be stripped into an uncharged hydrogen atom beam.

An electron beam focusing control device and method based on electric dipole magnets are used for beam precise control technology of large-scale electron beam accelerators. In view of problems of high-energy electron beam transmission trajectory distortion and beam divergence under the geomagnetic field, an electron beam focusing control method based on electric dipole magnets is proposed. Firstly, according to the geomagnetic field, target coordinates and beam parameters, the beam focusing control algorithm is substituted and solved to obtain the emission angle of the electron beam with different energies. Secondly, the calculated beam emission angle is converted into the accelerator pointing and the magnetic field strength and direction of the electric dipole magnet. Finally, the excitation current amplitude of two groups of electric dipole magnets or the excitation current amplitude of one group of electric dipole magnets and the rotation angle of the rotating structure are set, so that the focusing of the electron beam is realized.

The present invention relates to an online three-dimensional adjustment device and method for a rotating gantry dipole magnet vacuum chamber. The device comprises: a pipe clamping mechanism for clamping the vacuum chamber; a drive and adjustment assembly comprising an X-axis lateral adjustment unit, a Y-axis longitudinal adjustment unit, and a Z-axis vertical adjustment unit. The X-axis lateral adjustment unit is arranged perpendicularly to the movable portion of the Y-axis longitudinal adjustment unit, the Z-axis vertical adjustment unit is connected to the movable portion of the X-axis lateral adjustment unit, and the pipe clamping mechanism is connected to the Z-axis vertical adjustment unit. A controller is communicatively connected to the drive and adjustment assembly and is configured to obtain position information of the vacuum chamber, analyze position errors, and thereby control the drive and adjustment assembly to adjust the three-dimensional spatial position of the vacuum chamber. This device solves the current problem of the inability to adjust the interior of a dipole magnet vacuum chamber when installed in an abnormal posture.

The present invention relates to a medical proton synchrotron, which comprises eight deflection dipole magnets connected in sequence, four long straight sections connected between two deflection dipole magnets, respectively, and four mini straight sections connected between two deflection dipole magnets, respectively, and the straight sections comprise six horizontal defocusing quadrupole magnets and six horizontal focusing quadrupole magnets. According to the medical proton synchrotron of the present invention, the envelope function is controlled in a smaller level, thereby effectively increasing the acceptance of the synchrotron, maintaining a very compact structure, reducing the manufacturing difficulty of the elements, and improving the extraction efficiency.

The high-temperature superconducting two-pole magnet comprises an iron core, a coil assembly and a lead block set, the iron core is of an electrodeless head structure, a beam hole is formed in the center of the iron core, and the coil assembly penetrates through the iron core. The coil assembly comprises at least one pair of coils which are symmetrically distributed and are wound by a high-temperature superconducting strip to form an arc-shaped bent runway type structure, a lead block group is fixed on the outer wall of the coil assembly, the lead block group comprises lead blocks which are the same as the coils in number and are connected in a one-to-one correspondence manner, and coil joints are mounted on the side walls of the lead blocks; and each wire leading block is provided with a wire leading groove used for leading the wire inlet head and the wire outlet head of the coil to the position where the coil connector is installed and connecting the wire inlet head and the wire outlet head of the coil to the position where the coil connector is installed so as to achieve series connection between different coils. The lead block and the coil assembly are combined into a whole, so that strip damage or performance degradation caused by shaking of inlet and outlet strips can be avoided.

The invention relates to a negative feedback automatic energy regulation and control device and method suitable for a low-energy linear accelerator. The device comprises a first beam consulting room and a second beam consulting room, the first beam consulting room comprises a first Faraday cup, the second beam consulting room comprises a second Faraday cup, a mass spectrum dipolar magnet is arranged between the first beam consulting room and the second beam consulting room, a beam enters the mass spectrum dipolar magnet after passing through the first beam consulting room, the direction of the beam is changed in the mass spectrum dipolar magnet, and the beam enters the second beam consulting room after passing through the second Faraday cup. The beam enters a second beam consulting room after passing through a mass spectrum dipolar magnet, first beam intensity is obtained by measuring a first Faraday cup in the first beam consulting room, second beam intensity is obtained by monitoring a second Faraday cup in the second beam consulting room, amplitude and phase parameters of a high-frequency cavity are dynamically adjusted through a negative feedback control algorithm, and the beam intensity is obtained. And stopping until the second beam intensity is smaller than a first set proportion of the first beam intensity. The beam energy divergence can be automatically regulated and controlled, beam energy divergence information is automatically detected and is fed back to the control system in real time for energy divergence stabilization.

Magnet assemblies (e.g., dipole magnet assemblies) with integrated charged particle beam collectors and systems including the magnet assemblies are described. An example of a dipole magnet assembly includes a dipole deflection magnet and a channel assembly configured with a charged particle beam collector. The dipole magnet may be configured to generate a uniform magnetic field within the channel assembly that deflects a trajectory of a charged particle beam. The channel assembly may be configured to support a vacuum for the charged particle beam while absorbing secondary state particles using the charged particle beam collector. The charged particle beam collector may be removably secured to the channel assembly, welded to the channel assembly, or inserted into the channel assembly. Each charged particle beam collector may utilize an active cooling system, such as a cooling tube or embedded cooling channel, to mitigate excess heat generated by secondary state particle absorption. Materials are also described.

The invention provides an ion beam treatment device, and relates to the technical field of synchronous accelerators. The ion beam treatment device comprises a synchrotron used for accelerating beam current to obtain preset energy beam current, the synchrotron comprises six unit structures, and each unit structure comprises a dipole magnet, a horizontal focusing quadrupole magnet, a vertical focusing quadrupole magnet and a straight section; wherein the horizontal focusing quadrupole magnet and the vertical focusing quadrupole magnet are arranged on the linear section, and one end of the linear section is connected with the dipole magnet; and the free end of the straight section in each unit structure is connected with the dipolar magnet in the adjacent unit structure, so that the six unit structures form a periodic closed loop.

A particle accelerator system, preferably including an injection beamline, a return beamline, and a merged beamline, and optionally including a beam separator. The particle accelerator system preferably includes a plurality of electron optics elements, such as dipole magnets, quadrupole magnets, solenoid elements, and / or higher-order magnetic elements, which can function to direct electrons (and / or other charged particles) along the beamlines. A method of operation, preferably including injecting electrons, merging beamlines, accelerating the injected electrons, and / or using the accelerated electrons, and optionally including receiving return electrons, dumping used electrons, and / or returning the accelerated electrons.

The invention relates to a superconducting dipolar magnet structure for a particle accelerator, which comprises two saddle-shaped coils and two runway-shaped coils which are formed by winding superconducting cables, and the coils jointly form a particle beam channel with a rectangular cross section; the two saddle-shaped coils are arranged in a mirror symmetry mode, and the runway-shaped coils are arranged at the positions of middle pole heads in the saddle-shaped coils respectively. The superconducting dipolar magnet structure for the particle accelerator is formed by winding the superconducting cable, the magnetic field intensity is high, only a refrigerating machine needs to maintain a low-temperature environment, the energy consumption is low, an iron core can be added or not added, and the size and the weight are remarkably reduced.

The present application relates to a kind of anti-radiation dipole magnets for particle accelerator, comprising: iron core, using H-shaped structure;Coil, set in the iron core, and coil is raised at the both ends of iron core and forms saddle-shaped structure;Anti-radiation water pipe assembly is set in the outside of one end of iron core, and the outlet end of anti-radiation water pipe assembly is connected with the outgoing head of coil, to provide cooling water in coil, the inlet end of anti-radiation water pipe assembly is connected with external cooling device.The magnet of the present application makes up for the shortcomings of prior art, improves the operating stability of magnet in strong radiation environment and its service life, and simple structure, compact.

The present application relates to a kind of medical proton synchrotron, it includes four deflection dipole magnets by four straight sections connection to form a ring structure, wherein the deflection dipole magnet is first, second, third and fourth deflection dipole magnet, it includes four sextupole combined magnet in the straight section, and the four sextupole combined magnet is first, second, third and fourth horizontal focusing quadrupole and sextupole combined magnet.The structure of the present application is very compact, adopts four sextupole combined magnet, reduces unnecessary gap and magnet element, to realize the function of medical accelerator with as few element number as possible, reduce the space occupied by synchrotron, in turn, reduce construction cost and treatment cost.

Disclosed are percutaneous circulatory support devices and related blood pump systems which may include a housing and an impeller within the housing. The impeller is adapted to rotate within the housing to move blood from a blood inlet to a blood outlet. A motor may be operably coupled to the impeller to rotate the impeller relative to the housing. A drive shaft may be coupled to the impeller to rotate with the impeller. A driving magnet assembly may be coupled to the motor and include a diametric dipole magnet having a single north pole and a single south pole. A driven magnet assembly, including a diametric dipole magnet, may be coupled to at least one of the drive shaft and the impeller, the driven magnet assembly magnetically coupled to the driving magnet assembly such that rotation of the driving magnet assembly causes rotation of the driven magnet assembly and the impeller.

A particle accelerator system, preferably including an injection beamline, a return beamline, and a merged beamline, and optionally including a beam separator. The particle accelerator system preferably includes a plurality of electron optics elements, such as dipole magnets, quadrupole magnets, solenoid elements, and / or higher-order magnetic elements, which can function to direct electrons (and / or other charged particles) along the beamlines. A method of operation, preferably including injecting electrons, merging beamlines, accelerating the injected electrons, and / or using the accelerated electrons, and optionally including receiving return electrons, dumping used electrons, and / or returning the accelerated electrons.

A drug delivery system comprises an indicator element and a sensor system. The indicator element is arranged to rotate relative to a reference component and corresponding to a reference axis and comprises a plurality of dipole magnets. The sensor system comprises a plurality of magnetometers arranged non-rotational relative to the reference component and adapted to determine continuous magnetic field values from the plurality of dipole magnets, as well as processor means configured to determine on the basis of measured values from the plurality of magnetometers a rotational position and / or a rotational movement of the indicator element.

A conformal dipole winding includes a superconducting tape configured with a geometry that orients a face of the superconducting tape to be parallel to a local magnetic field produced by the winding along a length of the superconducting tape. The superconducting tape forms a tape-stack cable formed from a stack of a plurality of the superconducting tapes. A face of each of the superconducting tapes is oriented parallel to the local magnetic field and is in face-face contact with adjacent superconducting tapes.

The present invention relates to a miniaturized multi-ion integrated synchrotron, comprising: at least six deflection dipole magnet groups and a plurality of straight sections respectively connected between the deflection dipole magnet groups, and paired horizontal focusing quadrupole magnets and horizontal defocusing quadrupole magnets are arranged adjacent to the upstream and downstream of each deflection dipole magnet group; an injection cutting magnet and an injection electrostatic deflector are located in one straight section, an extraction cutting magnet is located in another straight section, and an extraction electrostatic deflector and an extraction kicker magnet are arranged in the straight section upstream of the straight section where the extraction cutting magnet is located in the movement direction of the particles in the synchrotron ring; an RF-KO slow extraction device, a beam measurement device and a high-frequency acceleration device are arranged in the remaining straight sections, wherein the synchrotron is designed to optionally control the RF-KO slow extraction device, the extraction electrostatic deflector and the extraction cutting magnet to achieve slow extraction as required, or control the extraction kicker magnet and the extraction cutting magnet to achieve fast extraction.

The invention relates to the technical field of particle accelerator magnets, in particular to an iron core manufacturing process and a pulse fan edge dipolar magnet. The iron core manufacturing process comprises the following steps: S1, stacking first silicon steel sheets along an arc line to form an iron core blank with an arc-shaped side wall; s2, the two ends of the iron core blank are cut according to a preset pole face rotation angle, so that the iron core blank is in a fan shape; and S3, stacking a second silicon steel sheet on the cutting surface of the iron core blank, and enveloping the cut first silicon steel sheet in the middle of the iron core. In the invention, by optimizing the iron core manufacturing process, the end part of the iron core is formed by the complete silicon steel sheet, so that the problem of sheet pulling can be avoided when the iron core is subjected to magnetism repairing processing, the two ends of the silicon steel sheet are fixed by utilizing the end plates and the welding plates at the same time, and the problem of sheet scattering at the end part of the iron core in the use process can also be avoided; and the magnetic field stability and the magnetic field precision of the fan-edge pulse dipolar magnet are improved.

The utility model discloses a compact multipurpose proton beam system, belongs to the field of radiotherapy, and solves the problem that the existing proton beam system has a single treatment terminal type. The superconducting isochronous cyclotron system is connected to the two-way selection system through the beam adjusting system, the two-way selection system comprises a two-way dipole magnet and two branch selection systems, and the two branch selection systems are connected to the rear end of the two-way dipole magnet in parallel. The system also comprises a beam transport system, and the beam transport system is composed of a first treatment terminal section, a second treatment terminal section and a third treatment terminal section. One branch selection system is connected to the fixed experiment beam transport system through the first treatment terminal section, the other branch selection system is connected to the fixed pen-shaped beam transport system through the second treatment terminal section, the third treatment terminal section is a branch of the second treatment terminal section, and the third treatment terminal section is connected to the rotary beam transport system. According to the utility model, the bidirectional selection system design is utilized, and multi-type and multi-purpose treatment terminal beam irradiation is realized.

Disclosed are percutaneous circulatory support devices and related blood pump systems which may include a housing and an impeller within the housing. The impeller is adapted to rotate within the housing to move blood from a blood inlet to a blood outlet. A motor may be operably coupled to the impeller to rotate the impeller relative to the housing. A drive shaft may be coupled to the impeller to rotate with the impeller. A driving magnet assembly may be coupled to the motor and include a diametric dipole magnet having a single north pole and a single south pole. A driven magnet assembly, including a diametric dipole magnet, may be coupled to the drive shaft and / or the impeller, the driven magnet assembly magnetically coupled to the driving magnet assembly such that rotation of the driving magnet assembly causes rotation of the driven magnet assembly and the impeller.