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| Number | Title | Issue Date |
| 7423381 | Particle accelerator and methods therefor Standing-wave linear accelerators (linac) having a plurality of accelerating cavities and which do not have any auxiliary cavities are provided. Such linacs are useful for industrial applications such as radiography, cargo inspection and food sterilization, and also... | 09/09/2008 |
| 7400093 | Standing wave particle beam accelerator A method for generating an electron beam includes prescribing a location, and generating an envelope of electrons, the envelope having a waist, wherein the generating is performed such that the waist of the envelope is at or adjacent to the prescribed location. A de... | 07/15/2008 |
| 7400094 | Standing wave particle beam accelerator having a plurality of power inputs A device for generating a particle beam includes a particle source, and a structure having a first section and a second section, the first section coupled to the particle source, the first section having a first power input, and the second section having a second po... | 07/15/2008 |
| 7356118 | Angled-beam detection system for container inspection A non-intrusive inspection system, including apparatuses and methods, for non-intrusively inspecting containers such as, without limitation, those employed to transport items in international commerce. The non-intrusive inspection system is configured to generate an... | 04/08/2008 |
| 7348569 | Acceleration of charged particles using spatially and temporally shaped electromagnetic radiation A method and apparatus for accelerating charged particles are disclosed, wherein the method comprises using at least a transverse component of a temporally and spatially shaped electromagnetic field to accelerate one or more charged particles. ... | 03/25/2008 |
| 7312461 | Laparoscopic tumor therapy using high energy electron irradiation A laparoscopic tumor therapy method and an articulated electron beam transport system are provided for use with a high power, long focus electron source for tumor therapy. The high power, long focus electron source generates an e-beam. The e-beam is transported thro... | 12/25/2007 |
| 7262564 | Electrostatic fluid accelerator for and a method of controlling fluid flow An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages. A single power supply or synchronized and phase controlled power supplies provide high voltage power to each of the stages such that both the phas... | 08/28/2007 |
| 7242158 | Distributed RF sources for medical RF accelerator Some embodiments include an accelerator waveguide having a plurality of cavities, and at least two RF power sources, each of the at least two RF power sources being separately coupled to a respective one of the plurality of cavities. ... | 07/10/2007 |
| 7227925 | Gantry mounted stereoscopic imaging system A radiation therapy treatment machine that has a stereoscopic imaging system, which includes a rotatable open gantry on which is placed a first diagnostic radiation source, a first diagnostic imager, and a therapeutic radiation source. ... | 06/05/2007 |
| 7112924 | Electronic energy switch for particle accelerator Some embodiments include an accelerator waveguide to receive RF power, the accelerator waveguide comprising a side cavity, an element fixedly disposed within the side cavity, and a device coupled to the element, wherein the device and the element are operable to con... | 09/26/2006 |
| 7053565 | Electrostatic fluid accelerator for and a method of controlling fluid flow An electrostatic fluid acceleration and method of operation thereof includes at least two synchronously powered stages with final or rear-most electrodes of one stage maintained at substantially the same instantaneous voltage as the immediately adjacent initial or f... | 05/30/2006 |
| 6912238 | Particle beam device A laser and method of producing laser light. The laser and method involve passing a high energy beam of particles through an evacuated chamber. A static electric or magnetic field is established in the chamber in a direction that is essentially perpendicular to the ... | 06/28/2005 |
| 6906478 | Method of reducing the power consumption of pre-accelerator in energy-recovery linac A method of producing synchrotron radiation comprising the steps of accelerating and compressing an electron beam generated from an electron source by means of a pre-accelerator, further accelerating the electron beam in a main accelerator to produce synchrotron rad... | 06/14/2005 |
| 6888326 | Linac for ion beam acceleration A drift tube linear accelerator (linac) that can be used for the acceleration of low energy ion beams. The particles enter the linac at low energy and are accelerated and focused along a straight line in a plurality of resonant accelerating structures interposed by ... | 05/03/2005 |
| 6781330 | Direct injection accelerator method and system An electron beam accelerator system includes a high voltage supply circuit having a high voltage output. A cathode structure is coupled to the high voltage supply circuit at the high voltage output. An anode structure is spaced from the cathode structure and has a v... | 08/24/2004 |
| 6710557 | Linear accelerator An accelerator comprises a plurality of accelerating cells arranged to convey a beam, adjacent cells being linked by a coupling cell, the coupling cells being arranged to dictate the ratio of electric field in the respective adjacent accelerating cells, at least one... | 03/23/2004 |
| 6657515 | Tuning mechanism for a superconducting radio frequency particle accelerator cavity A tuning mechanism for a superconducting radio frequency particle accelerator cavity, wherein the cavity comprises a number of axially aligned cells held by a frame, with at least one active cell that is axially stretchable to tune the resonant frequency ... | 12/02/2003 |
| 6559610 | Continuous wave electron-beam accelerator and continuous wave electron-beam accelerating method thereof A continuous wave electron-beam accelerator that accelerates a continuous wave electron beam having a large average current includes an electron beam generator, an electron-beam accelerating unit using a radio-frequency electric field having a frequency o... | 05/06/2003 |
| 6429608 | Direct injection accelerator method and system An electron beam accelerator system includes a high power switching device coupled between the direct current voltage source and the pulse forming network. A pulse control circuit is connected to control the high power switching device to selectively allo... | 08/06/2002 |
| 6407505 | Variable energy linear accelerator A device for use in a linear accelerator operable to accelerate charged particles along a beam axis. The device includes a first end section, a second end section, and a transition section interposed between the first and second end sections. The sections... | 06/18/2002 |
| 6326746 | High efficiency resonator for linear accelerator A new radio frequency (rf) linear accelerator (linac) is disclosed in this invention. The rf linac includes a plurality of resonators each includes an inductor circuit L(k), k=1,2,3, . . . , n' where n' is a second integer, wherein the inductor circuit co... | 12/04/2001 |
| 6327339 | Industrial x-ray/electron beam source using an electron accelerator An industrial X-ray/electron beam source includes an accelerator having a) a coaxial cavity b) an electron gun for emitting an electron beam to be accelerated, c) at least one deflection magnet positioned outside of the cavity, and d) a radio frequency po... | 12/04/2001 |
| 6316876 | High gradient, compact, standing wave linear accelerator structure A standing wave accelerator structure that has both inline coupling cavities and side coupling cavities combined into one structure. Additionally, the invention uses a prebunching (re-entrant) cavity, excited electrically or magnetically, through aperture... | 11/13/2001 |
| 6246172 | Magnetic core for RF accelerating cavity and the cavity There is provided a high-performance magnetic core with a high μ'Qf-value for an RF accelerating. The strip wound magnetic core has a thin strip of nanocrystalline soft magnetic alloy, whose bcc solid solution with an average grain size less than 100 nm ... | 06/12/2001 |
| 6172463 | Internally cooled linear accelerator and drift tubes A drift tube linear accelerator (DTL) incorporating an improved drift tube design, wherein the DTL comprises a resonance chamber maintaining a vacuum and having an inlet port and an exit port, an RF field source producing an oscillating radio frequency fi... | 01/09/2001 |
| 5698954 | Automatically operated accelerator using obtained operating patterns A beam transfer system has a bending magnet, a quadrupole magnet for converging or diverging a beam, and a beam current monitor. The controller of an accelerator body for the beam transfer system has a beam current measuring apparatus, a quantity-of-contr... | 12/16/1997 |
| 5635721 | Apparatus for the liner acceleration of electrons, particularly for intraoperative radiation therapy An apparatus for the linear acceleration of electrons, particularly for intraoperative radiation therapy, including: an articulated structure for moving a radiating head that comprises an acceleration structure constituted by a plurality of cavities; a modulat... | 06/03/1997 |
| 5483130 | Structure for accelerating heavy ions with uniformly spaced quadrupole focusing (USQF) An accelerator for heavy ions includes four uniformly spaced, perpendicular electrodes with a height H, a length L, and a thickness t and wherein each electrode including at least two rectangular windows therein. Each window has a height b and a width W. ... | 01/09/1996 |
| 5483122 | Two-beam particle acceleration method and apparatus Method and apparatus for accelerating charged particles in a compact two-beam accelerator including a high voltage diode which generates an annular intense electron beam and a pencil-shaped secondary beam. The annular beam is modulated and functions as a ... | 01/09/1996 |
| 5451847 | Variable energy radio frequency quadrupole linac A variable energy radio frequency quadrupole linac for emitting focused and accelerated beams by changing radio frequency energy levels, wherein the accelerating cavity is divided by a plane perpendicular to the beam direction and in a radio frequency sen... | 09/19/1995 |
| 5422549 | RFQ device for accelerating particles A superconducting radio frequency quadrupole (RFQ) device includes four spaced elongated, linear, tubular rods disposed parallel to a charged particle beam axis, with each rod supported by two spaced tubular posts oriented radially with respect to the bea... | 06/06/1995 |
| 5412283 | Proton accelerator using a travelling wave with magnetic coupling The disclosure relates to linear proton accelerators. A proton accelerator is made by using travelling waves with magnetic coupling to accelerate the protons in forward or backward mode and in fundamental or harmonic mode. In particular, an accelerator fo... | 05/02/1995 |
| 5389888 | Synchrotron radiation beam generator A radiation generator extracts a synchrotron radiation beam from an electron storing ring, through a high-vacuum atmosphere in a beam duct, while preventing loss of the high-level vacuum. A multistage axial-flow arrangement is interposed in the beam duct.... | 02/14/1995 |
| 5341104 | Synchrotron radiation source A synchrotron radiation source includes a beam guidance system for accelerating and storing an electron or positron particle beam on a closed trajectory. In order to generate the synchrotron radiation, the beam guidance system has at least one approximate... | 08/23/1994 |
| 5280252 | Charged particle accelerator A charged particle accelerator capable of accelerating arbitrarily charged particles to an arbitrary energy level and resonating at a low frequency suitable for accelerating heavy ions, including quadruple electrodes which are supplied with high frequency... | 01/18/1994 |
| 5039910 | Standing-wave accelerating structure with different diameter bores in bunching and regular cavity sections A standing-wave accelerating structure for accelerating charged particles wherein a converging force and a diverging force of an electric field to an electron beam are checked to improve the transmittivity of the electron beam through the accelerating str... | 08/13/1991 |
| 5017881 | Radio frequency accelerating cavity having slotted irises for damping certain electromagnetic modes An accelerating cavity having one or more iris structures mounted therein for strongly damping unwanted frequencies that are generated in the cavity by bunches of particles in a particle beam that is accelerated through the cavity during its operation. Ea... | 05/21/1991 |
| 4992744 | Radio frequency linear accelerator control system A control system for controlling a radio frequency resonant cavity type linear accelerator so as to be power-supplied always at a resonance frequency of a resonat cavity constituting the accelerator. The system consists essentially of a signal pick-up coi... | 02/12/1991 |
| 4939419 | RFQ accelerator tuning system A cooling system is provided for maintaining a preselected operating temperature in a device, which may be an RFQ accelerator, having a variable heat removal requirement, by circulating a cooling fluid through a cooling system remote from the device. Inte... | 07/03/1990 |
| 4801847 | Charged particle accelerator using quadrupole electrodes A charged particle accelerator is provided with quadrupole electrodes with surfaces that are opposed to each other and are undulated, and with an external resonance circuit. The external resonance circuit consists of a capacitor formed by the opposing ele... | 01/31/1989 |
