| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | BEAM FOCUSING AND ACCELERATING SYSTEM | US15111557 | 2015-01-15 | US20160379793A1 | 2016-12-29 | Satyabrata Kar |
| A system for focusing and accelerating a beam of electrically charged particles, for example protons. The system comprises: a beam generator; a charge pulse generator; and a focusing and accelerating device comprising a body with a core. The body defines a charge path extending along the body and beam generator directs a beam of electrically charged particles through the core. The charge pulse generator simultaneously delivers charge pulses to the charge path. The charge path may be helical in shape. Movement of the charge pulse along the path creates an electric field that simultaneously accelerates and focuses the beam. | ||||||
| 42 | CHARGED PARTICLE BEAM GENERATOR, CHARGED PARTICLE IRRADIATION SYSTEM, METHOD FOR OPERATING CHARGED PARTICLE BEAM GENERATOR AND METHOD FOR OPERATING CHARGED PARTICLE IRRADIATION SYSTEM | US14926501 | 2015-10-29 | US20160150630A1 | 2016-05-26 | Kazunori TSUBUKU; Masumi UMEZAWA; Takashi IGA; Kouji TOBINAGA |
| Provided are a charged particle beam generation apparatus, a charged particle beam irradiation apparatus, a particle beam therapy system, and a charged particle beam generation apparatus operating method capable of implementing injection of a charged particle beam into a circular accelerator at an arbitrary timing by setting a normal operation period of a linear accelerator to be larger than a shortest period and securing a stability of the beam. In timing control of controlling injecting, accelerating, emitting, and decelerating processes of a synchrotron 200, after an end of the emitting process, a linear accelerator 111 is allowed to stop repetition of an operation based on an after-end-of-emitting-process timing signal to be in a stand-by state and is allowed to be start the repetition of the operation in a constant period based on a master signal. | ||||||
| 43 | METHOD OF MANUFACTURING RADIO FREQUENCY ACCELERATOR, RADIO FREQUENCY ACCELERATOR, AND CIRCULAR ACCELERATOR SYSTEM | US14653012 | 2013-02-28 | US20160014877A1 | 2016-01-14 | Kengo SUGAHARA; Kazushi HANAKAWA; Yasuto KISHII; Kazuo YAMAMOTO |
| A method of manufacturing a radio frequency accelerator that accelerates charged particles injected into a second-stage linear accelerator from a first-stage linear accelerator includes a step of setting a value of a power distribution factor R for the power distributor to supply radio frequency power to the second-stage linear accelerator and a value of a ratio L/ω of a length L of the matching section between the outlet of the first-stage linear accelerator and the inlet of the second-stage linear accelerator to the angular frequency ω of the radio frequency power, so that a charged particle beam is extracted from the second-stage linear accelerator over a range of the total radio frequency power wider than a widest allowable range among allowable total radio frequency power ranges determined for each phase of charged particles on the basis of phase acceptance of the second-stage accelerator. | ||||||
| 44 | BEAM CURRENT VARIATION SYSTEM FOR A CYCLOTRON | US14760404 | 2014-01-09 | US20150359081A1 | 2015-12-10 | Thomas STEPHANI; Heinrich ROCKEN |
| Beam current variation system for a cyclotron, arranged in the inner centre of the cyclotron, downstream from the ion source generating the charged particle beam, the system comprising a deflector system powered by a voltage and a collimator. The beam is dumped in the collimator, if the deflector system (10; 20, 21) is not powered, and the beam is switched on by powering the deflector system with a voltage. | ||||||
| 45 | Soft-start adapter for AC heated electron gun | US13831654 | 2013-03-15 | US09198276B2 | 2015-11-24 | Timothy R. Fox |
| A circuit to power an electron source includes a filament transformer comprising a primary side and a secondary side, a high-voltage transformer coupled to the filament transformer and the electron source, and an alternating current (AC) current limiter coupled in series with the primary side or the secondary side of the filament transformer. The AC current limiter includes a diode bridge and a current-limiting device in the diode bridge. | ||||||
| 46 | Charged particle beam acceleration method and apparatus as part of a charged particle cancer therapy system | US12994117 | 2009-05-21 | US09058910B2 | 2015-06-16 | Vladimir Yegorovich Balakin |
| The invention comprises a charged particle beam acceleration method and apparatus used as part of multi-axis charged particle radiation therapy of cancerous tumors. The accelerator includes a synchrotron having advances in turning magnets, edge focusing magnets, magnetic field concentration magnets, and extraction and intensity control elements 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 allows independent energy and intensity control of extracted charged particles from the synchrotron. | ||||||
| 47 | Charged particle cancer therapy beam path control method and apparatus | US12994132 | 2009-05-21 | US08957396B2 | 2015-02-17 | Vladimir Yegorovich Balakin |
| The invention comprises a charged particle beam path coupling an injector, synchrotron accelerator, beam transport system, targeting system, and/or patient interface method and apparatus. Preferably, the injector comprises: a negative ion beam source, a two phase ion source vacuum system, an ion beam focusing lens, and/or a tandem accelerator. Preferably, the synchrotron comprises turning magnets, edge focusing magnets, magnetic field concentration magnets, winding and correction coils, flat magnetic field incident surfaces, and/or extraction elements. Preferably, the synchrotron, beam transport system, targeting system, and patient interface combine to allow multi-axis/multi-field irradiation, where multi-axis control comprises control of horizontal and vertical beam position, beam energy, and/or beam intensity and multi-field control comprises control of patient rotation and distribution of delivered energy in and about the tumor in a time controlled, targeted, accurate, precise, dosage controlled, and/or efficient manner. | ||||||
| 48 | Charged particle beam extraction method and apparatus used in conjunction with a charged particle cancer therapy system | US12994126 | 2009-05-21 | US08841866B2 | 2014-09-23 | Vladimir Yegorovich Balakin |
| The invention comprises a charged particle beam extraction method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. The system uses a radio-frequency cavity system to induce betatron oscillation of a charged particle stream. Sufficient amplitude modulation of the charged particle stream causes the charged particle stream to hit a material, such as a foil. The foil decreases the energy of the charged particle stream, which decreases a radius of curvature of the charged particle stream in the synchrotron sufficiently to allow a physical separation of the reduced energy charged particle stream from the original charged particle stream. The physically separated charged particle stream is then removed from the system by use of an applied field and deflector. | ||||||
| 49 | SOFT-START ADAPTER FOR AC HEATED ELECTRON GUN | US13831654 | 2013-03-15 | US20140265847A1 | 2014-09-18 | Timothy R. Fox |
| A circuit to power an electron source includes a filament transformer comprising a primary side and a secondary side, a high-voltage transformer coupled to the filament transformer and the electron source, and an alternating current (AC) current limiter coupled in series with the primary side or the secondary side of the filament transformer. The AC current limiter includes a diode bridge and a current-limiting device in the diode bridge. | ||||||
| 50 | SEPTUM MAGNET | US14342820 | 2012-08-30 | US20140232497A1 | 2014-08-21 | Kei Sugita |
| A device for generating a magnetic field includes at least one electric coil having electric conductors that are arranged along a circular arc within a first angular range and that deviate from the circular arc within a second angular range. At least one magnetic yoke is arranged along a part of the first angular range. | ||||||
| 51 | PHOTOCATHODE HIGH-FREQUENCY ELECTRON-GUN CAVITY APPARATUS | US13825918 | 2011-09-26 | US20130187541A1 | 2013-07-25 | Junji Urakawa; Nobuhiro Terunuma; Toshikazu Takatomi |
| A photocathode high-frequency electron-gun cavity apparatus of the present invention is provided with a high-frequency acceleration cavity (1), a photocathode (8, 15), a laser entering port (9), a high-frequency power input coupler port (10), and a high-frequency resonant tuner (16). Here, the apparatus adopts an ultra-small high-frequency accelerator cavity which contains a cavity cell formed only with a smooth and curved surface at an inner face thereof without having a sharp angle part for preventing discharging, obtaining higher strength of high-frequency electric field, and improving high-frequency resonance stability. Further, the photocathode is arranged at an end part of a half cell (5) of the high-frequency acceleration cavity for maximizing electric field strength at the photocathode face, perpendicular incidence of laser is ensured by arranging a laser entering port at a position facing to the photocathode behind an electron beam extraction port of the high-frequency acceleration cavity for maximizing quality of short-bunch photoelectrons, and a high-frequency power input coupler port is arranged at a side part of the cell of the high-frequency acceleration cavity for enhancing high-frequency electric field strength. According to the above, it is possible to provide a small photocathode high-frequency electron-gun cavity apparatus capable of generating a high-strength and high-quality electron beam. | ||||||
| 52 | Particle beam injector system and method | US13253944 | 2011-10-05 | US08466429B2 | 2013-06-18 | Gary Guethlein |
| Methods and devices enable coupling of a charged particle beam to a radio frequency quadrupole accelerator. Coupling of the charged particle beam is accomplished, at least in-part, by relying on of sensitivity of the input phase space acceptance of the radio frequency quadrupole to the angle of the input charged particle beam. A first electric field across a beam deflector deflects the particle beam at an angle that is beyond the acceptance angle of the radio frequency quadrupole. By momentarily reversing or reducing the established electric field, a narrow portion of the charged particle beam is deflected at an angle within the acceptance angle of the radio frequency quadrupole. In another configuration, beam is directed at an angle within the acceptance angle of the radio frequency quadrupole by the first electric field and is deflected beyond the acceptance angle of the radio frequency quadrupole due to the second electric field. | ||||||
| 53 | Charged particle cancer therapy and patient positioning method and apparatus | US12554913 | 2009-09-06 | US08378321B2 | 2013-02-19 | Vladimir Balakin |
| The invention comprises a laying, semi-vertical, or seated patient positioning, alignment, and/or control method and apparatus used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. Patient positioning constraints are used to maintain the patient in a treatment position, including one or more of: a seat support, a back support, a head support, an arm support, a knee support, and a foot support. One or more of the positioning constraints are movable and/or under computer control for rapid positioning and/or immobilization of the patient. The system optionally uses an X-ray beam that lies in substantially the same path as a proton beam path of a particle beam cancer therapy system. The generated image is usable for: fine tuning body alignment relative to the proton beam path, to control the proton beam path to accurately and precisely target the tumor, and/or in system verification and validation. | ||||||
| 54 | PARTICLE BEAM COUPLING SYSTEM AND METHOD | US13253940 | 2011-10-05 | US20120086364A1 | 2012-04-12 | Gary Guethlein |
| Methods and devices enable coupling of a charged particle beam to a radio frequency quadrupole (RFQ). Coupling of the charged particle beam is accomplished, at least in-part, by relying on sensitivity of the RFQ to energies of the incoming charged particle beam. A portion of a charged particle beam, which has an initial energy outside a range of RFQ's acceptance energy values, is subjected to a field that modifies its energy to fall within the range of RFQ's acceptance energy values. Once the field is removed, the charged particle beam returns to the initial energy that is outside of the RFQ' range of acceptance energy values. In another configuration, a portion of a charged particle beam, which has an initial energy within the range of RFQ's acceptance energy values, is subjected to a field that modifies its energy to fall outside the range of acceptance energy values of the RFQ. | ||||||
| 55 | Apparatus and method for merging a low energy electron flow into a high energy electron flow | US12634361 | 2009-12-09 | US08153965B1 | 2012-04-10 | John L. Adamski; Benjamin Emerson Carl Koltenbah |
| An apparatus for merging a low energy electron flow into a high energy electron flow may include: a high energy electron path for accommodating the high energy electron flow; and a plurality of magnetic elements arranged to guide the low energy electron flow through a chicane presenting a path having a first end and a second end. The path intersects the high energy electron path at the second end. The path has a plurality of turns and path segments intermediate the first and second ends. Respective adjacent path segments intersect at each respective turn. The path establishes a respective bend radius and subtends a respective path angle between respective adjacent path segments at each respective turn. Each respective path angle is maximized within predetermined path angle limits. Each respective bend radius is minimized within predetermined bend radius limits. | ||||||
| 56 | CHARGED PARTICLE BEAM EXTRACTION METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM | US12994126 | 2009-05-21 | US20110266455A1 | 2011-11-03 | Vladimir Yegorovich Balakin |
| The invention comprises a charged particle beam extraction method and apparatus used in conjunction with charged particle beam radiation therapy of cancerous tumors. The system uses a radio-frequency cavity system to induce betatron oscillation of a charged particle stream. Sufficient amplitude modulation of the charged particle stream causes the charged particle stream to hit a material, such as a foil. The foil decreases the energy of the charged particle stream, which decreases a radius of curvature of the charged particle stream in the synchrotron sufficiently to allow a physical separation of the reduced energy charged particle stream from the original charged particle stream. The physically separated charged particle stream is then removed from the system by use of an applied field and deflector. | ||||||
| 57 | CHARGED PARTICLE CANCER THERAPY BEAM PATH CONTROL METHOD AND APPARATUS | US12994132 | 2009-05-21 | US20110182410A1 | 2011-07-28 | Vladimir Yegorovich Balakin |
| The invention comprises a charged particle beam path coupling an injector, synchrotron accelerator, beam transport system, targeting system, and/or patient interface method and apparatus. Preferably, the injector comprises: a negative ion beam source, a two phase ion source vacuum system, an ion beam focusing lens, and/or a tandem accelerator. Preferably, the synchrotron comprises turning magnets, edge focusing magnets, magnetic field concentration magnets, winding and correction coils, flat magnetic field incident surfaces, and/or extraction elements. Preferably, the synchrotron, beam transport system, targeting system, and patient interface combine to allow multi-axis/multi-field irradiation, where multi-axis control comprises control of horizontal and vertical beam position, beam energy, and/or beam intensity and multi-field control comprises control of patient rotation and distribution of delivered energy in and about the tumor in a time controlled, targeted, accurate, precise, dosage controlled, and/or efficient manner. | ||||||
| 58 | X-RAY METHOD AND APPARATUS USED IN CONJUNCTION WITH A CHARGED PARTICLE CANCER THERAPY SYSTEM | US12994129 | 2009-05-21 | US20110150180A1 | 2011-06-23 | Vladimir Yegorovich Balakin |
| The invention comprises an X-ray method and apparatus used in conjunction with charged particle radiation therapy of cancerous tumors. The system uses an X-ray beam that lies in substantially the same path as a charged particle beam path of a particle beam cancer therapy system, has an elongated lifetime, and/or that is synchronized with patient respiration. The system creates an electron beam that strikes an X-ray generation source where the X-ray generation source is located proximate to the proton beam path. By generating the X-rays near the proton beam path, an X-ray path that is essentially the proton beam path is created. Using the generated X-rays, the system collects X-ray images of a localized body tissue region about a cancerous tumor, which are usable for: fine tuning body alignment relative to the proton beam path and/or to control the proton beam path to accurately and precisely target the tumor. | ||||||
| 59 | MULTI-AXIS CHARGED PARTICLE CANCER THERAPY METHOD AND APPARATUS | US12994120 | 2009-05-21 | US20110118531A1 | 2011-05-19 | Vladimir Yegorovich Balakin |
| The invention comprises a multi-axis charged particle irradiation method and apparatus. The multi-axis controls includes separate or independent control of one or more of horizontal position, vertical position, energy control, and intensity control of the charged particle irradiation beam. Optionally, the charged particle beam is additionally controlled in terms of timing. Timing is coordinated with patient respiration and/or patient rotational positioning. Combined, the system allows multi-axis and multi-field charged particle irradiation of tumors yielding precise and accurate irradiation dosages to a tumor with distribution of harmful proximal distal energy about the tumor. | ||||||
| 60 | GAS INJECTION SYSTEM | US12756627 | 2010-04-08 | US20100263756A1 | 2010-10-21 | THOMAS UHL |
| A gas injection system includes a first line for introducing gas into an ion source, and a second line and a third line for two separate gas flows, which are introduced into the ion source. A fast switchover between the gas flows is effected using a multi-way switchover valve. The second line and the third line each lead into an inlet of the multi-way switchover valve, and the first line is connected to an outlet of the multi-way switchover valve. The multi-way switchover valve is configured such that either the gas flow from the second line or the gas flow from the third line is introduced into the ion source via the first line. | ||||||
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