| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Injection apparatus both for positive and negative ions | US523216 | 1995-09-05 | US5587632A | 1996-12-24 | Izumi Sakai |
| An injection apparatus both for positive and negative ions comprising: a first, a third and a fourth bump magnets arranged in order on a circulation orbit, a second bump magnet arranged on said circulation orbit between the first and the third bump magnets so as to maintain a given position relative to the circulation orbit and a carbon film arranged between the second and the third bump magnets, wherein the second bump magnet is afforded with both of respective functions of a bump magnet and a septum magnet, the second bump magnet is operated as the bump magnet upon the injection of a negative ion beam, while the second bump magnet is operated as the septum magnet upon the injection of a positive ion beam. | ||||||
| 122 | Electron gun for providing electrons grouped in short pulses | US706674 | 1991-05-29 | US5506473A | 1996-04-09 | Jeanne Aucouturier; Andre Bensussan; Hubert Leboutet |
| This gun comprises a cathode K, a grid G, and an anode A between which the applied voltages are radio-frequency voltages. The cathode is disposed on the central conductor of a coaxial cavity, facing said grid terminating said cavity. Said cavity is terminated at the other end by a short-circuit and includes a coaxial branch line so as to resonate at two frequencies F.sub.1 and F.sub.2 multiple of f.sub.0, whose beating induces a radio-frequency grid-cathode voltage. Said grid terminates another coaxial cavity whose central conductor is hollow and whose end facing said grid forms the anode. said other coaxial cavity resonator is excited and resonates at a frequency F.sub.0 multiple of f.sub.0, which induces a radio-frequency anode-grid voltage.A proper selection of the frequencies F.sub.0, F.sub.1, F.sub.2 allows to obtain electrons bunches of very short duration. | ||||||
| 123 | Dual ion injector for tandem accelerators | US47744 | 1993-04-15 | US5315118A | 1994-05-24 | Dirk J. W. Mous |
| A compact ion beam injection apparatus for tandem accelerators wherein the outputs from two independent ion sources, that may be operated continuously, can be selectively chosen and mass analyzed so that the output from any one of the sources can be rapidly selected and efficiently directed to the input point of a tandem accelerator. | ||||||
| 124 | Synchrotron radiation apparatus | US588814 | 1990-09-27 | US5101169A | 1992-03-31 | Yoshio Gomei |
| A synchrotron radiation apparatus includes a linear accelerator for accelerating an injected electron beam to 20 MeV or less, an energy compaction system for reducing the energy width of an electron beam, an accumulation ring for permitting the high energy electrons output from the energy compaction system to be circulated therein, an injector for injecting high energy electrons into the accumulation ring, a plurality of deflection electromagnets disposed on the respective corner portions of the accumulation ring, for deflecting the high energy electrons from the injector by a preset angle so as to cause the high energy electrons to be circulated in the accumulation ring, and a plurality of beam lines for guiding to a predetermined position, emission light emitted from the accumulation ring when the high energy electrons are circulated in the accumulation ring at a high speed. Each of the deflection electromagnets includes a core having a pair of magnetic poles arranged to face each other in a direction perpendicular to an electron track on which energy electrons are circulated with the electron track disposed therebetween. The deflection electromagnets further include a yoke for integrally coupling the pair of magnetic poles at one-side ends thereof. The core has a "rectangular C"-shaped cross section and integrally formed in a sector shape, and the width of the yoke in a direction perpendicular to the electron track is set larger than the width of the magnetic pole in a direction perpendicular to the electron track. | ||||||
| 125 | Apparatus for acceleration and application of negative ions and electrons | US606536 | 1990-10-31 | US5073913A | 1991-12-17 | Ronald L. Martin |
| An apparatus for generating X-rays from electron synchrotron radiation or beams of accelerated ions for ion radiography or ion therapy includes a source of electrons and a source of ions, both of which are connectable to preaccelerators. The preaccelerators supply the appropriate type of charged particle to a synchrotron accelerator which accelerates ions to an energy level that is appropriate for radiography or therapy and which accelerates electrons to a level that generates X-rays by synchrotron radiation in a useful frequency range. The accelerator system also includes a storage ring into which particles are switched and circulated for later use. Electrons are extracted from the synchrotron and injected into the storage ring by fast extraction using a kicker magnet and a septum magnet. They then circulate in the storage ring for periods of hours generating X-rays which may be used for lithography of computer chips with submicron resolution. The energy loss because of this radiation is continuously replaced by a radio-frequency acceleration system. During the period that electrons are circulating in the storage ring, the synchrotron may be utilized to accelerate ions for ion radiography or ion therapy with beam extracted from the synchrotron by stripping extraction through thin foils. Other simultaneous uses for the ions or electrons from the preaccelerator may prove advantageous. | ||||||
| 126 | Method of incidence of charged particles into a magnetic resonance type accelerator and a magnetic resonance type accelerator in which this method of incidence is employed | US60868 | 1987-05-20 | US4849705A | 1989-07-18 | Takeshi Takayama |
| Upon injecting charged particles onto a central equilibrium orbit formed within a magnetic resonance type accelerator, a resonant orbit whose horizontal betatron oscillation member is 1/2 for the charged particles, is formed, and this resonant orbit is varied in time. By varying the above-mentioned resonant orbit in time, it becomes easy to inject charged particles having high energy onto a central equilibrium orbit, and a magnetic resonance type accelerator can be reduced in size. In order to form above-described resonant orbit whose horizontal betatron oscillation number is 1/2, a non-linear magnetic field employing a octa-pole magnetic field as an auxiliary converging component is applied to a central equilibrium orbit plane by a first electro-magnet, and in order to vary the resonant orbit in time, a magnetic field including a quadrupole magnetic field as a principal component is applied by a second electro-magnet, and this magnetic field may be varied in time. Alternatively, a principal magnetic field is applied to a central equilibrium orbit plane by a first electro-magnet, a non-linear magnetic field including an octa-pole magnetic field as a principal converging component is applied to the central equilibrium orbit plane by a second electro-magnet, thereby a resonant orbit whose horizontal betatron oscillation number is 1/2 is formed, and the resonant orbit may be varied in time by varying the octa-pole magnetic field in time. | ||||||
| 127 | Method and apparatus for injecting charged particles across a magnetic field | US877915 | 1986-06-24 | US4789839A | 1988-12-06 | Donald E. Morris |
| A new method is described for injecting charged particles across a magnetic field, in which an electrostatic reflector (bouncer) reverses the direction of the ions after they travel around a half orbit in the magnetic field. This method can be used for radial injection of charged particles into a cyclotron, or into a plasma confined by a magnetic field. | ||||||
| 128 | Method and apparatus for accelerating charged particles | US195521 | 1980-10-09 | US4392111A | 1983-07-05 | Norman Rostoker |
| A method and means for accelerating charged particle beams having very high current densities to relativistic energies, as, for example, embodied in a betatron capable of carrying a current of many tens of kiloamperes at energies up to at least 300 Mev. The basic principle underlying the present invention is the containment of a beam of charged particles, more particularly a beam of electrons, by a magnetic field directed along the beam. As the strength of the magnetic field is increased as a function of time the beam of electrons becomes compressed in the direction transverse to the beam into a region of high charge density. The electrons may then be accelerated along the direction of the magnetic field to form an ultra-relativistic beam. At such high energies the beam tends to be stable and the containing magnetic field is no longer necessary. The magnetic field may therefore be permitted to decay. | ||||||
| 129 | System for producing high energy positively charged particles | US3794927D | 1970-01-20 | US3794927A | 1974-02-26 | WELLS D; FLEISCHER A; HENDRY G |
| A system for producing high energy positively charged particles which includes in series a source of negative ions; means axially injecting these ions into a small cyclotron which accelerates the ions to a first energy level; means extracting negative ions from the cyclotron in a high quality beam; and a two-stage tandem Van de Graaff accelerator which accepts the beam of negative ions at the first energy level, then accelerates them to a second higher energy level, strips their negative charge, and finally accelerates the resulting positive particles to a still higher third energy level.
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| 130 | Apparatus for injecting electrons into a traveling wave accelerating waveguide structure | US12843961 | 1961-08-01 | US3239711A | 1966-03-08 | NORRIS NEIL J |
| 131 | Particle accelerator | US63759557 | 1957-01-31 | US2922061A | 1960-01-19 | TENG LEE C |
| 132 | Cyclotron and method for controlling the same | US15616502 | 2017-06-07 | US10123406B1 | 2018-11-06 | John Hans Melin; Erik Koffmar; Nils Tynelius; Oskar Svedberg |
| Cyclotron includes an acceleration chamber, a vacuum system, an ion source system, and a control system that is configured to determine at least one operating parameter as a particle beam is directed along a beam path of the cyclotron. The control system is configured to decrease a supply of the charged particles for the particle beam based on the at least one operating parameter. The particle beam continues after decreasing the supply of the charged particles. The control system is also configured to increase the supply of the charged particles for the particle beam after a predetermined time period or in response to determining that an amount of gas molecules has reduced based on the at least one operating parameter. | ||||||
| 133 | 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. | ||||||
| 134 | COMPACT ELECTRON ACCELERATOR COMPRISING PERMANENT MAGNETS | US15805509 | 2017-11-07 | US20180132342A1 | 2018-05-10 | Michel ABS; Willem KLEEVEN; Jarno VAN DE WALLE; Jérémy BRISON; Denis DESCHODT |
| An electron accelerator is provided. The electron accelerator comprises a resonant cavity comprising a hollow closed conductor, an electron source configured to inject a beam of electrons, and an RF system. The electron accelerator further comprises a magnet unit, comprising a deflecting magnet. The deflecting magnet is configured to generate a magnetic field in a deflecting chamber in fluid communication with the resonant cavity by a deflecting window. The magnetic field is configured to deflect an electron beam emerging out of the resonant cavity through the deflecting window along a first radial trajectory in the mid-plane (Pm) and to redirect the electron beam into the resonant cavity through the deflecting window towards the central axis along a second radial trajectory. The deflecting magnet is composed of first and second permanent magnets positioned on either side of the mid-plane (Pm). | ||||||
| 135 | INSERTION DEVICE | US15572261 | 2016-07-29 | US20180124911A1 | 2018-05-03 | Hideo KITAMURA; Masami ARAKAWA |
| An insertion device includes first and second magnet arrays facing each other with a gap therebetween, magnet supporting members adapted to support the magnet arrays mounted thereto, a gap driving mechanism for driving the first and second magnet supporting members in the vertical direction for changing the gap size, a driving conjunction mechanism for coupling the gap driving mechanism and the magnet supporting members to each other, compensation spring mechanisms adapted to compensate for attractive forces acting on the first and second magnet arrays, a spring conjunction mechanism for coupling the compensation spring mechanisms and the magnet supporting members to each other, a first supporting frame for supporting the gap driving mechanism, a second supporting frame for supporting the compensation spring mechanisms, and a common base placed on a placement surface, wherein the first supporting frame and the second supporting frame are individually coupled to the common base. | ||||||
| 136 | 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. | ||||||
| 137 | Method of producing brazeless accelerating structures | US15338569 | 2016-10-31 | US09913360B1 | 2018-03-06 | Sergey Antipov; Roman Kostin; Sergey Kuzikov; Chunguang Jing; Jiaqi Qiu |
| A resonant apparatus such as a resonant waveguide module in an RF particle accelerator includes an unbrazed joint that provides a reliable vacuum seal and RF contact between resonators with precisely controlled internal geometry. The joint can be disassembled and reassembled without degradation. Hard, stainless steel end faces include knife edges pressed into a copper central component, such as a gasket. The knife edges extend the waveguide interiors without gaps or interruptions. The central component serves as a coupling iris or other functional component of the resonant apparatus, thereby allowing the central component to have substantial dimensions that inhibit mechanical distortions thereof. The waveguides and knife edges can be copper plated. Embodiments include embedded passages and/or recesses used for cooling, radiation shielding, magnetic focusing coils, and/or electron optics element formed by permanent magnets. | ||||||
| 138 | CHARGE STRIPPING FILM FOR ION BEAM | US15783242 | 2017-10-13 | US20180049306A1 | 2018-02-15 | Mutsuaki Murakami; Masamitsu Tachibana; Atsushi Tatami |
| A charge stripping film for an ion beam includes a single layer body of a graphitic film having a carbon component of at least 96 at % and a thermal conductivity in a film surface direction at 25° C. of at least 800 W/mK, or a laminated body of the graphitic film. The charge stripping film has a thickness of 100 nm to 10 μm, a tensile strength in a film surface direction of at least 5 MPa, a coefficient of thermal expansion in the film surface direction of at least 1×10−5/K, and an area of at least 4 cm2. | ||||||
| 139 | Apparatus for mm-wave radiation generation utilizing whispering gallery mode resonators | US15675690 | 2017-08-11 | US20170367171A1 | 2017-12-21 | Sami G. Tantawi; Filippos Toufexis; Michael V. Fazio; Valery A. Dolgashev |
| An apparatus for generating high frequency electromagnetic radiation includes a whispering gallery mode resonator, coupled to an output waveguide through a coupling aperture. The resonator has a guiding surface, and supports a whispering gallery electromagnetic eigenmode. An electron source is configured to generate a velocity vector-modulated electron beam, where each electron in the velocity vector-modulated electron beam travels substantially perpendicular to the guiding surface, while interacting with the whispering gallery electromagnetic eigenmode in the whispering gallery mode resonator, generating high frequency electromagnetic radiation in the output waveguide. | ||||||
| 140 | DIELECTRIC WALL ACCELERATOR UTILIZING DIAMOND OR DIAMOND LIKE CARBON | US15663311 | 2017-07-28 | US20170345518A1 | 2017-11-30 | Martin A. Stuart |
| Provided are a plurality of embodiments, including, but not limited to, a device for generating efficient low and high average power output Gamma Rays via relativistic particle bombardment of element targets using an efficient particle injector and accelerator at low and high average power levels suitable for element transmutation and power generation with an option for efficient remediation of radioisotope release into any environment. The devices utilize diamond or diamond-like carbon materials and active cooling for improved performance. | ||||||
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