| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Variable energy standing wave linear accelerator structure | US84284 | 1979-10-12 | US4286192A | 1981-08-25 | Eiji Tanabe; Victor A. Vaguine |
| Variable energy selection is accomplished in a side cavity coupled standing wave linear accelerator by shifting the phase of the field in a selected side coupling cavity by .pi. radians where such side coupling cavity is disposed intermediate groups of accelerating cavities. For an average acceleration energy of E.sub.1 (MeV) per interaction cavity, and a total number of N interaction cavities, the total energy gain is E.sub.1 (N-2N.sub.1) where N.sub.1 is the number of interaction cavities traversed beyond the incidence of the phase shift. The phase shift is most simply accomplished by changing the selected side cavity configuration mechanically in repeatable manner so that its resonant excitation is switched from TM.sub.010 mode to either TM.sub.011 or TEM modes. Thus, the total energy gain can be varied without changing the RF input power. In addition, the beam energy spread is unaffected. | ||||||
| 142 | Alternating phase focused linacs | US912785 | 1978-06-05 | US4211954A | 1980-07-08 | Donald A. Swenson |
| A heavy particle linear accelerator employing rf fields for transverse andongitudinal focusing as well as acceleration. Drift tube length and gap positions in a standing wave drift tube loaded structure are arranged so that particles are subject to acceleration and succession of focusing and defocusing forces which contain the beam without additional magnetic or electric focusing fields. | ||||||
| 143 | Heavy ion accelerating structure and its application to a heavy-ion linear accelerator | US900128 | 1978-04-26 | US4181894A | 1980-01-01 | Jacques Pottier |
| The accelerating structure comprises a resonant cavity within which are placed at least two longitudinal conducting supports. One end of each support is electrically connected to the cavity in such a manner as to be in quarter-wave resonance and in opposite phase. Drift tubes are electrically connected alternately to each of the two supports. The supports are electrically connected respectively to each end of the lateral face of the cavity. | ||||||
| 144 | Accelerating structure for a linear charged particle accelerator operating in the standing-wave mode | US891058 | 1978-03-28 | US4160189A | 1979-07-03 | Duc Tien Tran; Dominique Tronc |
| A compact accelerating structure comprises an accelerating section and a complementary section which may be used as a bunching section and/or a preaccelerating section, this complementary section being constituted by a first cavity and a second cavity joined to one another and electromagnetically coupled with one another in a direct manner, the second cavity, which is adjacent to the accelerating section, having a length L and being electromagnetically coupled to the first cavity and to the accelerating section in such a manner that the electromagnetic accelerating field is zero in this second cavity. | ||||||
| 145 | S-Band standing wave accelerator structure with on-axis couplers | US842296 | 1977-10-14 | US4155027A | 1979-05-15 | Stanley O. Schriber; Samuel B. Hodge; L. Warren Funk |
| An S-band standing wave electron accelerator structure having a multiplicity of resonant accelerating cavities and resonant coupling cavities mounted sequentially in an alternating accelerating cavity-coupling cavity pattern along an accelerator axis, with adjacent cavities separated by a common wall. The common walls and end walls of the structure have beam holes concentric with the axis, and the common walls further have two slots for coupling energy between the cavities. To prevent direct coupling between the accelerating cavities which are separated by a coupling cavity, the coupling slots in one wall of the coupling cavity are rotated approximately 90.degree. about the accelerator axis with respect to the coupling slos in the other wall. The structure is assembled by brazing a number of conductive segments together. Each segment forms half of each of the adjacent cavities having the common wall and thus consists of half of an accelerating cavity and half of a coupling cavity. The outer profile of the segments may be circular, square, or hexagon. The cooling system is simplified if a combination of circular and square segments, or only hexagonal segments are used. | ||||||
| 146 | Linear particle accelerator using magnetic mirrors | US546137 | 1975-01-31 | US3956634A | 1976-05-11 | Duc Tien Tran; Dominique Tronc; Jacques Kervizic; Claude Perraudin |
| A particle accelerator for obtaining high energy particle beams, comprises an accelerating structure S.sub.A, one mirror or two mirrors constituted with magnetic achromatic and stigmatic deviators and a source K of particles located at the entry of the accelerating structure S.sub.A and having an annular shape allowing the accelerated particles having passed twice through the accelerating structure S.sub.A to cross the source K, the axis of the source K being coincidental with the axis of the accelerating stucture S.sub.A. Magnetic fields are determined in such a manner that the mirrors totally reflect the particles having a predetermined energy level and totally transmit the particles having an energy level higher than this predetermined energy level. | ||||||
| 147 | Accelerator for relativistic electrons | US3611166D | 1968-11-08 | US3611166A | 1971-10-05 | EPSZTEIN BERNARD; PINEL JACQUES |
| An electron accelerator supplied with H.F. energy comprising one or more resonators in series through which an electron beam is propagated several times, along parallel trajectories with deflection by 180* at each end of the accelerator.
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| 148 | Linear accelerator having the beam injected at a position of maximum r.f. accelerating field | US3546524D | 1967-11-24 | US3546524A | 1970-12-08 | STARK PETER G |
| 149 | Superconductive r.f. linear particle accelerator section having a scalloped tubular shape | US3514662D | 1967-12-22 | US3514662A | 1970-05-26 | ELDREDGE ARNOLD L |
| 150 | Multiple mode excitation apparatus | US20227550 | 1950-12-22 | US2760103A | 1956-08-21 | SALISBURY WINFIELD W |
| 151 | Electron accelerator of the microwave type | US641648 | 1948-02-05 | US2524252A | 1950-10-03 | BROWN WILLIAM C |
| 152 | Electron gun | US36760640 | 1940-11-28 | US2289952A | 1942-07-14 | ZWORYKIN VLADIMIR K |
| 153 | Synchrotron injector system and operating method for drift tube linear accelerator | US15553410 | 2015-07-10 | US10051722B2 | 2018-08-14 | Kazuo Yamamoto; Sadahiro Kawasaki; Hiromitsu Inoue |
| When accelerating first ions, radio frequency power is fed to a drift tube linear accelerator so that the phase difference between an accelerating half cycle for accelerating the first ions in one of the plurality of drift tube gaps and the accelerating half cycle for accelerating the accelerated first ions reaching the next drift tube gap is set to a first accelerating cycle phase difference; and when accelerating second ions having a charge-to-mass ratio lower than the first ions, the radio frequency power is fed to the drift tube linear accelerator so that the phase difference between an accelerating half cycle for accelerating the second ions in the one drift tube gap and the accelerating half cycle for the accelerated second ions reaching the next drift tube gap is set to a second accelerating cycle phase difference that is larger than the first accelerating cycle phase difference. | ||||||
| 154 | SYNCHROTRON INJECTOR SYSTEM AND OPERATING METHOD FOR DRIFT TUBE LINEAR ACCELERATOR | US15553410 | 2015-07-10 | US20180092197A1 | 2018-03-29 | Kazuo YAMAMOTO; Sadahiro KAWASAKI; Hiromitsu INOUE |
| When accelerating first ions, radio frequency power is fed to a drift tube linear accelerator so that the phase difference between an accelerating half cycle for accelerating the first ions in one of the plurality of drift tube gaps and the accelerating half cycle for accelerating the accelerated first ions reaching the next drift tube gap is set to a first accelerating cycle phase difference; and when accelerating second ions having a charge-to-mass ratio lower than the first ions, the radio frequency power is fed to the drift tube linear accelerator so that the phase difference between an accelerating half cycle for accelerating the second ions in the one drift tube gap and the accelerating half cycle for the accelerated second ions reaching the next drift tube gap is set to a second accelerating cycle phase difference that is larger than the first accelerating cycle phase difference. | ||||||
| 155 | HYBRID STANDING WAVE/TRAVELING LINEAR ACCELERATORS PROVIDING ACCELERATED CHARGED PARTICLES OR RADIATION BEAMS | US15456057 | 2017-03-10 | US20170265292A1 | 2017-09-14 | Andrey MISHIN |
| A hybrid linear accelerator is disclosed comprising a standing wave linear accelerator section (“SW section”) followed by a travelling wave linear accelerator section (“TW section”). In one example, RF power is provided to the TW section and power not used by the TW section is provided to the SW section via a waveguide. An RF switch, an RF phase adjuster, and/or an RF power adjuster is provided along the waveguide to change the energy and/or phase of the RF power provided to the SW section. In another example, RF power is provided to both the SW section and the TW section, and RF power not used by the TW section is provided to the SW section, via an RF switch, an RF phase adjuster, and/or an RF power. In another example, an RF load is matched to the output of the TW section by an RF switch. | ||||||
| 156 | Synchrotron injector system, and synchrotron system operation method | US15024737 | 2013-11-26 | US09661735B2 | 2017-05-23 | Kazuo Yamamoto; Sadahiro Kawasaki; Hiromitsu Inoue |
| A synchrotron injector system comprising a first ion source which generates a first ion, a second ion source which generates a second ion having a smaller charge-to-mass ratio than a charge-to-mass ratio of the first ion, a pre-accelerator having the capability to enable to accelerate both the first ion and the second ion, a low-energy beam transport line which is constituted in such a way to inject either the first ion or the second ion into the pre-accelerator, and a self-focusing type post-accelerator which accelerates only the first ion after acceleration which is emitted from the pre-accelerator. | ||||||
| 157 | Distributed coupling high efficiency linear accelerator | US14207376 | 2014-03-12 | US09398681B2 | 2016-07-19 | Sami G. Tantawi; Jeffrey Neilson |
| A microwave circuit for a linear accelerator includes multiple monolithic metallic cell plates stacked upon each other so that the beam axis passes vertically through a central acceleration cavity of each plate. Each plate has a directional coupler with coupling arms. A first coupling slot couples the directional coupler to an adjacent directional coupler of an adjacent cell plate, and a second coupling slot couples the directional coupler to the central acceleration cavity. Each directional coupler also has an iris protrusion spaced from corners joining the arms, a convex rounded corner at a first corner joining the arms, and a corner protrusion at a second corner joining the arms. | ||||||
| 158 | METHODS AND SYSTEMS FOR RF POWER GENERATION AND DISTRIBUTION TO FACILITATE RAPID RADIATION THERAPIES | US15068268 | 2016-03-11 | US20160193481A1 | 2016-07-07 | SAMI TANTAWI; VALERY A. DOLGASHEV |
| Methods and system for facilitating rapid radiation treatments are provided herein and relate in particular to radiation generation and delivery, power production and distribution, and electron source design. The methods and systems described herein are particularly advantageous when used with a compact high-gradient, very high energy electron (VHEE) accelerator and delivery system (and related processes) capable of treating patients from multiple beam directions with great speed, using all-electromagnetic or radiofrequency deflection steering is provided, that can deliver an entire dose or fraction of high-dose radiation therapy sufficiently fast to freeze physiologic motion, yet with a better degree of dose conformity or sculpting than conventional photon therapy. | ||||||
| 159 | METHODS FOR CONTROLLING STANDING WAVE ACCELERATOR AND SYSTEMS THEROF | US14487960 | 2014-09-16 | US20150084549A1 | 2015-03-26 | Huaibi CHEN; Jianping CHENG; Shuxin ZHENG; Jiaru SHI; Chuanxiang TANG; Qingxiu JIN; Wenhui HUANG; Yuzheng LIN; Dechun TONG; Shi WANG |
| 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. | ||||||
| 160 | STANDING WAVE ELECTRON LINEAR ACCELERATOR WITH CONTINUOUSLY ADJUSTABLE ENERGY | US14137262 | 2013-12-20 | US20140185775A1 | 2014-07-03 | Chuanxiang TANG; Zhe ZHANG; Qingxiu JIN; Jiaru SHI; Huaibi CHEN; Wenhui HUANG; Shuxin ZHENG; Yaohong LIU |
| A standing wave electron linear accelerating apparatus and a method thereof are disclosed. The apparatus comprises an electron gun configured to generate electron beams; a pulse power source configured to provide a primary pulse power signal; a power divider coupled downstream from the pulse power source and configured to divide the primary pulse power signal outputted from the pulse power source into a first pulse power signal and a second pulse power signal; a first accelerating tube configured to accelerating the electron beams with the first pulse power signal; a second accelerating tube configured to accelerate the electron beams with the second pulse power signal; a phase shifter configured to continuously adjust a phase difference between the first pulse power signal and the second pulse power signal so as to generate accelerated electron beams with continuously adjustable energy at output of the second accelerating tube. | ||||||
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