| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 315503000 | Synchrotron | 21 |
| 20090195194 | ALL-ION ACCELERATOR AND CONTROL METHOD OF THE SAME - It is an object of the present invention to provide an accelerator that can accelerate by itself all ions up to any energy level allowed by the magnetic fields for beam guiding, and provides an all-ion accelerator in which with trigger timing and a charging time of an induced voltage applied to an ion beam injected from a preinjector by induction cells for confinement and acceleration used in an induction synchrotron, digital signal processors for confinement and acceleration and pattern generators for confinement and acceleration generate gate signal patterns for confinement and acceleration on the basis of a passage signal of the ion beam and an induced voltage signal for indicating the value of the induced voltage applied to the ion beam, and intelligent control devices for confinement and acceleration perform feedback control of on/off of the induction cells for confinement and acceleration. | 08-06-2009 |
| 20090309520 | MAGNETIC FIELD CONTROL METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM - The invention comprises a charged particle beam acceleration, extraction, and/or targeting method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. Novel design features of a synchrotron are described. Particularly, turning magnets, edge focusing magnets, concentrating magnetic field magnets, winding and control coils, flat surface incident magnetic field surfaces, and extraction elements are described that minimize the overall size of the synchrotron, provide a tightly controlled proton beam, directly reduce the size of required magnetic fields, directly reduces required operating power, and allow continual acceleration of protons in a synchrotron even during a process of extracting protons from the synchrotron. | 12-17-2009 |
| 20100060206 | FAST ELECTROMAGNET DEVICE - A fast electromagnet device ( | 03-11-2010 |
| 20100141183 | METHOD AND APPARATUS COORDINATING SYNCHROTRON ACCELERATION PERIODS WITH PATIENT RESPIRATION PERIODS - The invention relates generally to treatment of solid cancers. More particularly, the invention relates to enhancing synchrotron acceleration cycle usage efficiency by adjusting the synchrotron's acceleration cycle to correlate with a patient's respiration rate where efficiency refers to the duty cycle or the percentage of acceleration cycles used to deliver charged particles to the tumor. The system senses patient respiration and controls timing of negative ion beam formation, injection of charged particles into a synchrotron, acceleration of the charged particles, and extraction to yield delivery of the particles to the tumor at a predetermine period of the patient's respiration cycle. Independent control of charged particle energy and intensity is maintained during the timed irradiation therapy. Multi-field irradiation ensures efficient delivery of Bragg peak energy to the tumor while spreading ingress energy about the tumor. | 06-10-2010 |
| 20100171447 | INTENSITY MODULATED THREE-DIMENSIONAL RADIATION SCANNING METHOD AND APPARATUS - The invention relates to treatment of solid cancers and more particularly to a method and apparatus correlating proton beam intensity with proton delivery efficiency, optionally in a raster beam scanning system. The system induces betatron oscillation on the proton beam causing the beam to traverse an extraction material resulting in slowed protons and a feedback current proportional to the proton flux. A controller receives the desired intensity from an irradiation plan and the feedback current and adjusts the radio-frequency field in the radio-frequency cavity system to yield an intensity of the proton beam that matches the desired intensity from the irradiation plan. Preferably, the intensity of the proton beam correlates with radiation delivery efficiency. The system preferably operates in conjunction with a multi-field charged particle cancer therapy system, with charged particle beam injection, particle beam acceleration, multi-axis charged particle beam control, and/or targeting methods and apparatus. | 07-08-2010 |
| 20100176753 | INDUCED VOLTAGE CONTROL DEVICE, ITS CONTROL METHOD, CHARGED PARTICLE BEAM ORBIT CONTROL DEVICE, AND ITS CONTROL METHOD - [PROBLEMS] To provide an induction voltage control device ( | 07-15-2010 |
| 20100207552 | CHARGED PARTICLE CANCER THERAPY SYSTEM MAGNET CONTROL METHOD AND APPARATUS - The invention comprises a charged particle beam acceleration, extraction, and/or targeting method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. Novel design features of a synchrotron are described. Particularly, turning magnets, edge focusing magnets, concentrating magnetic field magnets, winding and control coils, and extraction elements are described that minimize the overall size of the synchrotron, provide a tightly controlled proton beam, directly reduce the size of required magnetic fields, directly reduces required operating power, and allow continual acceleration of protons in a synchrotron even during a process of extracting protons from the synchrotron. | 08-19-2010 |
| 20100219776 | MULTI-ENERGY FREQUENCY-MULTIPLYING PARTICLE ACCELERATOR AND METHOD THEREOF - A multi-energy frequency-multiplying particle accelerator and a method thereof are disclosed in order to overcome the drawbacks of the existing accelerator, such as single energy level, beam current and operating frequency limited by a single power source. The accelerator comprises a pulse power generation unit for generating N pulse signals with different power levels, N is equal to or greater than 2; N microwave power generation units for, under the control of a control signal, generating N microwaves with different energy levels based on said N pulse signals, respectively; a power mixing unit having N entrances and one exit and for inputting a corresponding microwave among said N microwaves from each of said N entrances and outputting said N microwaves from said one exit; a particle beam generation unit for generating N particle beams in synchronization with said N is microwaves; and an accelerating unit for using said N microwaves to accelerate said N particle beams, respectively. Since the multi-energy frequency-multiplying particle accelerator of the present invention can output alternately particle beams of different energy levels and thus has improved operating frequency and multiplied power, it will find a wider application prospect in the field of radiograph imaging, radioactive medicine and radiation processing industry. | 09-02-2010 |
| 20110156617 | INDUCTION ACCELERATING DEVICE AND ACCELERATION METHOD OF CHARGED PARTICLE BEAM - The present invention provides a set of induction accelerating cell for controlling acceleration of a charged particle beam and an induction accelerating device for controlling generation timing of an induced voltage applied by the induction accelerating cell in a synchrotron. The induction accelerating device in a synchrotron includes: an induction accelerating cell that applies an induced voltage; a switching power supply that supplies a pulse voltage to the induction accelerating cell via a transmission line and drives said induction accelerating cell; a DC power supply that supplies electric power to the switching power supply; and an intelligent control device including a pattern generator that generates a gate signal pattern for controlling on/off the switching power supply, and a digital signal processing device that controls on/off a gate master signal that becomes the basis of the gate signal pattern. | 06-30-2011 |
| 20120133305 | MAGNETIC FIELD CONTROL APPARATUS AND DIPOLE MAGNET - To provide a magnetic field control apparatus capable of reducing a width of a correcting plate. The magnetic field control apparatus includes a conductive vacuum duct | 05-31-2012 |
| 20120200237 | CHARGED PARTICLE BEAM EXTRACTION METHOD USING PULSE VOLTAGE - A charged particle beam extraction method according to the present invention is featured in that, in a circular accelerator which accelerates a charged particle beam, a pulse voltage is applied to a part of the accelerated charged particle beam to generate a momentum deviation only in the part of the charged particle beam, in that the charged particles of a part of the charged particle beam, the charged particles having a large momentum deviation, are located in a non-stable region and in an extraction region in a horizontal phase space with respect to the traveling direction of the charged particle beam, and in that a group of the charged particles located in the non-stable region and in the extraction region are largely deviated in the horizontal direction so as to be extracted. | 08-09-2012 |
| 20120242257 | MAGNETIC FIELD CONTROL METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM - The invention comprises a charged particle beam acceleration, extraction, and/or targeting method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. Novel design features of a synchrotron are described. Particularly, turning magnets, edge focusing magnets, concentrating magnetic field magnets, winding and control coils, flat surface incident magnetic field surfaces, and extraction elements are described that minimize the overall size of the synchrotron, provide a tightly controlled proton beam, directly reduce the size of required magnetic fields, directly reduces required operating power, and allow continual acceleration of protons in a synchrotron even during a process of extracting protons from the synchrotron. | 09-27-2012 |
| 20120286703 | PARTICLE ACCELERATOR AND CHARGED PARTICLE BEAM IRRADIATION APPARATUS INCLUDING PARTICLE ACCELERATOR - A particle accelerator that is a synchrocyclotron accelerating charged particles and which includes an acceleration electrode that accelerates the charged particles; a high frequency power source that supplies the electric power to the acceleration electrode; a control unit that adjusts the frequency of the electric power supplied from the high frequency power source based on energy of the charged particle which is accelerated; and a matching circuit that has a coil and a capacitor, and performing impedance matching between the acceleration electrode and the high frequency power source, wherein the matching circuit has an inductance adjustment unit electrically adjusting the inductance of the coil. | 11-15-2012 |
| 20120313554 | ACCELERATOR FOR CHARGED PARTICLES - An accelerator for charged particle may include: a capacitor stack which includes a first electrode that can be brought to a first potential, a second electrode that is concentric to the first electrode and can be brought to a second potential differing from the first potential, and at least one intermediate electrode that is concentrically arranged between the first electrode and the second electrode and can be brought to an intermediate potential lying between the first potential and the second potential; a switching device to which the electrodes of the capacitor stack are connected and which is designed such that the concentric electrodes of the capacitor stack can be brought to increasing potential stages during operation of the switching device; a first and a second acceleration channel formed by first and second openings in the electrodes of the capacitor stack such that charged particles can be accelerated along the first and second acceleration channel by means of the electrodes; and a device which can influence the accelerated particle beam within the capacitor stack such that photons emitted by the particle beam are produced. | 12-13-2012 |
| 20140055058 | METHOD AND SYSTEM FOR STABLE DYNAMICS AND CONSTANT BEAM DELIVERY FOR ACCELERATION OF CHARGED PARTICLE BEAMS IN A NON-SCALING FIXED FIELD ALTERNATING GRADIENT MAGNETIC FIELD ACCELERATOR - An accelerator system includes a plurality of cells. Each cell includes a focus magnet and a defocus magnet each configured to create a magnetic field so as to confine and accelerate a particle beam, the focus magnet being configured to focus the particle beam in a horizontal direction and defocus the particle beam in a vertical direction, and the defocus magnet being configured to focus the particle beam in a vertical direction and defocus the particle beam in a horizontal direction. Each of the plurality of cells is configured to confine the particle beam in an isochronous orbit during acceleration. The accelerator system is a non-scaling fixed field alternating gradient particle accelerator (FFAG). | 02-27-2014 |
| 20140139147 | CHARGED PARTICLE ACCELERATOR MAGNET APPARATUS AND METHOD OF USE THEREOF - The invention comprises a flattened magnet coil system that reduces space between a first magnet turning section and a second magnet turning section in a synchrotron accelerator, which reduces or eliminates need for one or more quadrupole focusing elements in the accelerator. Optionally, a coil, in the flattened magnetic coil system, is wrapped about a central metal member between yoke members of a magnet. The coil has a first width and a first thickness along the length of the magnet and a second width and a second thickness along the end of the magnet where the first width is larger than the second width and the second thickness is larger than the first thickness allowing a smaller distance between the first magnet turning section and the second magnet turning section while maintaining current flow in the coil. | 05-22-2014 |
| 20140152199 | PARTICLE BEAM SYSTEM AND PATTERN DATA GENERATION METHOD FOR PARTICLE BEAM SYSTEM - To reduce the number of steps of generating control pattern data needed for achieving beam irradiation with desired energy in the beam extraction from a synchrotron accelerator, a data generator | 06-05-2014 |
| 20140252994 | NON-SCALING FIXED FIELD ALTERNATING GRADIENT PERMANENT MAGNET CANCER THERAPY ACCELERATOR - A non-scaling fixed field alternating gradient accelerator includes a racetrack shape including a first straight section connected to a first arc section, the first arc section connected to a second straight section, the second straight section connected to a second arc section, and the second arc section connected to the first straight section; an matching cells configured to match particle orbits between the first straight section, the first arc section, the second straight section, and the second arc section. The accelerator includes the matching cells and an associated matching procedure enabling the particle orbits at varying energies between an arc section and a straight section in the racetrack shape. | 09-11-2014 |
| 20150084549 | METHODS FOR CONTROLLING STANDING WAVE ACCELERATOR AND SYSTEMS THEROF - The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus. | 03-26-2015 |
| 20160014877 | METHOD OF MANUFACTURING RADIO FREQUENCY ACCELERATOR, RADIO FREQUENCY ACCELERATOR, AND CIRCULAR ACCELERATOR SYSTEM | 01-14-2016 |
| 20160255712 | METHOD AND SYSTEM OF BEAM INJECTION TO CHARGED PARTICLE STORAGE RING | 09-01-2016 |
