| Entries |
| Document | Title | Date |
|---|
| 20080231215 | Undulator - An undulator comprises a first magnetic circuit ( | 09-25-2008 |
| 20090033249 | Method and apparatus for the acceleration and manipulation of charged particles - A magnetic field crosses non-uniform rotating electric radial fields which are generated between a central electrode and a series of circumferential outer electrodes. Synchronous charging and partial discharging is applied to the outer electrodes, generating a rotating non-axisymmetric field. Charged particles may then be accelerated and held in a circular orbit, regulated by the magnitude and frequency of the charging of the electrodes, with a radius given by Bqwr=Eq+mw | 02-05-2009 |
| 20090146587 | Completely Sealed High Efficiency Microwave Sulfur Lamp - A completely sealed microwave sulfur lamp is made possible by removing the heat generated from the magnetron and high voltage direct-current power supply via heat conducting oil, rubber and resin. An oil pump is used to circulate the heated oil to the metallic housing of the lamp for natural cooling. No forced air cooling is needed. High efficiency power supply is used to reduce the heat generated. The low ripple direct-current high voltage generated also contributes to lower heat generation at the magnetron. | 06-11-2009 |
| 20100013418 | Particle Radiation Therapy Equipment - Particle radiation therapy equipment arranged to apply a charged particle beam in a predetermined direction to a region of application within an imaging volume, comprising a charged particle beam source arranged to direct a charged particle beam in the predetermined direction, further comprising magnetic field generation means for generating a magnetic field in the region of application at the same time that the charged particle beam is applied, wherein the magnetic field generation means is arranged to provide access to the region of application for the charged particle beam, and to provide a homogeneous magnetic field in the region of application of the charged particle beam, said magnetic field being directed substantially in the predetermined direction. | 01-21-2010 |
| 20100033115 | HIGH-CURRENT DC PROTON ACCELERATOR - A dc accelerator system able to accelerate high currents of proton beams at high energies is provided. The accelerator system includes a dc high-voltage, high-current power supply, an evacuated ion accelerating tube, a proton ion source, a dipole analyzing magnet and a vacuum pump located in the high-voltage terminal. The high-current, high-energy dc proton beam can be directed to a number of targets depending on the applications such as boron neutron capture therapy BNCT applications, NRA applications, and silicon cleaving. | 02-11-2010 |
| 20100039051 | Power Variator - An apparatus for use in a process to regulate power for a particle accelerator includes a first circulator, a second circulator, a tee coupled between the first and the second circulator, and a tuner coupled to the tee. An apparatus for use in a process to regulate power for a particle accelerator includes a first circulator, a second circulator, a 3-dB coupler coupled between the first and the second circulator, and a tuner coupled to the 3-dB coupler. | 02-18-2010 |
| 20100207551 | MULTI-MODE, MULTI-FREQUENCY, TWO-BEAM ACCELERATING DEVICE AND METHOD - A two-beam accelerator device including a drive beam source and an accelerated beam source for providing a drive beam and accelerated beam, a detuned resonant cavity disposed in the path of the drive beam and the accelerated beam, and a two-beam focusing device and method of use thereof. The detuned resonant cavity may be rectangular, square, axisymmetrical, and/or cylindrical. The focusing device may include a modified quadrupole magnet having four magnets, a central opening, a channel in the central opening, an opening in one of the four magnets, the opening having a non-magnetic channel lined with a magnetic material. | 08-19-2010 |
| 20110101891 | VIRTUAL GAP DIELECTRIC WALL ACCELERATOR - A virtual, moving accelerating gap is formed along an insulating tube in a dielectric wall accelerator (DWA) by locally controlling the conductivity of the tube. Localized voltage concentration is thus achieved by sequential activation of a variable resistive tube or stalk down the axis of an inductive voltage adder, producing a “virtual” traveling wave along the tube. The tube conductivity can be controlled at a desired location, which can be moved at a desired rate, by light illumination, or by photoconductive switches, or by other means. As a result, an impressed voltage along the tube appears predominantly over a local region, the virtual gap. By making the length of the tube large in comparison to the virtual gap length, the effective gain of the accelerator can be made very large. | 05-05-2011 |
| 20110298397 | Special purpose modes in photonic band gap fibers - Photonic band gap fibers are described having one or more defects suitable for the acceleration of electrons or other charged particles. Methods and devices are described for exciting special purpose modes in the defects including laser coupling schemes as well as various fiber designs and components for facilitating excitation of desired modes. Results are also presented showing effects on modes due to modes in other defects within the fiber and due to the proximity of defects to the fiber edge. Techniques and devices are described for controlling electrons within the defect(s). Various applications for electrons or other energetic charged particles produced by such photonic band gap fibers are also described. | 12-08-2011 |
| 20120062153 | RF CAVITY USING LIQUID DIELECTRIC FOR TUNING AND COOLING - A system for accelerating particles includes an RF cavity that contains a ferrite core and a liquid dielectric. Characteristics of the ferrite core and the liquid dielectric, among other factors, determine the resonant frequency of the RF cavity. The liquid dielectric is circulated to cool the ferrite core during the operation of the system. | 03-15-2012 |
| 20120161671 | PARTICLE ACCELERATORS HAVING ELECTROMECHANICAL MOTORS AND METHODS OF OPERATING AND MANUFACTURING THE SAME - A particle accelerator including an electrical field system and a magnetic field system that are configured to direct charged particles along a desired path within an acceleration chamber. The particle accelerator also includes a mechanical device that is located within the acceleration chamber. The mechanical device is configured to be selectively moved to different positions within the acceleration chamber. The particle accelerator also includes an electromechanical (EM) motor having a connector component and piezoelectric elements that are operatively coupled to the connector component. The connector component is operatively attached to the mechanical device. The EM motor drives the connector component when the piezoelectric elements are activated thereby moving the mechanical device. | 06-28-2012 |
| 20120194104 | HF RESONATOR CAVITY AND ACCELERATOR - An RF resonator cavity for accelerating charged particles comprises an RF resonator cavity in which an electromagnetic RF field acts on a particle beam which passes through the RF resonator cavity along a beam path, and at least one intermediate electrode arranged in the RF resonator cavity along the beam path of the particle beam, the intermediate electrode increasing an electrical breakdown resistance in the resonator cavity. An accelerator for accelerating charged particles, which includes such RF resonator cavity, is also provided. | 08-02-2012 |
| 20120206069 | PARTICLE ACCELERATOR HAVING WIDE ENERGY CONTROL RANGE - A particle accelerator system for producing a charged particle beam having pulses of charged particles that have different energy levels from pulse to pulse. The system enables independent adjustment of the RF power delivered to first and second accelerating sections thereof without adjustment of the RF power generated by an RF source. Such independent adjustment enables the RF power provided to the first accelerating section to be maintained at a level appropriate for optimal particle capturing therein and for producing a tightly bunched beam of particles having different energy levels from pulse to pulse, while enabling the RF power provided to the second accelerating section to be varied in order to vary the energy levels of the charged particles of the charged particle beam from pulse to pulse. | 08-16-2012 |
| 20120256563 | WELDING METHOD AND SUPERCONDUCTING ACCELERATOR - Provided is a welding method of welding a cylindrical stiffening member to an outer circumference of a superconducting accelerator tube body using a laser beam in a process of manufacturing a superconducting accelerator tube. The laser beam is configured such that a distribution profile of energy density on an irradiated face to which the laser beam is irradiated is a Gaussian distribution profile having a peak section, and the energy density of the peak section is 5.8×10 | 10-11-2012 |
| 20120286702 | APPARATUS AND METHOD FOR ENERGY STORAGE WITH RELATIVISTIC PARTICLE ACCELERATION - An energy storage device is proposed that utilizes acceleration of particles to near relativistic velocities to store energy in the kinetic energy of accelerated particles. Designs and models are provided for a commercially feasible device that implements the concept. The device allows tremendous performance capabilities across many parameters including energy density. Multiple innovations are also proposed for methods to reconvert the kinetic energy of accelerated particles back to electricity. In addition, certain innovations are proposed for accelerated particle beam control, beam particle designs and beam confinement rings. The device is different from existing particle collider storage rings in that it maximizes total beam energy, not energy per particle by accelerating particles to velocities substantially less than the speed of light. In addition, it includes innovations to meet the requirements of the commercial market with specific applications in markets such as grid level storage and energy storage for vehicles. | 11-15-2012 |
| 20120326636 | Accelerator system stabilization for charged particle acceleration and radiation beam generation - A method for generating stabilized particle acceleration by a radio-frequency (RF) accelerator is described, comprising operating the accelerator in a warm-up mode during a warm-up time period, without injecting charged particles or without accelerating injected charged particles, and operating the accelerator in a beam-on mode during a beam-on time period after the warm-up time period, to accelerate charged particles injected by the charged particle source. Automatic frequency control to match an expected frequency of the accelerator during the beam-on time period, prior to the start of the beam-on time period, for stability, is also described. | 12-27-2012 |
| 20130307437 | Energy Density Intensifier for Accelerating, Compressing and Trapping Charged Particles in a Solenoid Magnetic Field - The Energy Density Intensifier for Accelerating, Compressing and Trapping Charged Particles in a Solenoid Magnetic Field is a method and apparatus operable upon a population of charged particles possessing an initial angular momentum (magnetic moment) within a vacuum mirror solenoid magnetic field. An electric field is applied generally along the longitudinal magnetic field axis accelerating, compressing and trapping the charged particles by their magnetic moment against the radial component of the field gradient of the mirror magnetic field of the solenoid magnetic field, by means of the electric force established by the electric field. | 11-21-2013 |
| 20140077729 | RF GENERATOR - An RF generator has a hollow conductor having a conductive wall. The wall has a first slot, over which a first solid-state switch is arranged in order to apply a radiofrequency electrical voltage through the first slot. | 03-20-2014 |
| 20140152197 | Charged Particle Accelerator Systems including Beam Dose and Energy Compensation and Methods Therefor - A method of operating an acceleration system comprises injecting charged particles into an RF accelerator, providing RF power to the accelerator, and accelerating the injected charged particles. The accelerated charged particles may impact a target to generate radiation. The RF power is based, at least in part, on past performance of the system, to compensate, at least partially, for dose and/or energy instability. A controller may provide a compensated control voltage (“CCV”) to an electric power source based on the past performance, to provide compensated electric power to the RF source. A decreasing CCV, such as an exponentially decreasing CCV, may be provided to the electric power source during beam on time periods. The CCV to be provided may be increased, such as exponentially increased toward a maximum value, during beam off time periods. The controller may be configured by a compensation circuit and/or software. Systems are also described. | 06-05-2014 |
| 20150084548 | CIRCULAR ACCELERATOR - A circular accelerator of the present invention includes an electrode that applies a high frequency electric field for accelerating a charged particle beam, an electromagnetic device that bends the charged particle beam, and a direct current (or DC) power supply device that applies a direct current (or DC) electric field to the previous described electrode. | 03-26-2015 |
| 20150366045 | Variable-pulse-shape pulsed-power accelerator - A variable-pulse-shape pulsed-power accelerator is driven by a large number of independent LC drive circuits. Each LC circuit drives one or more coaxial transmission lines that deliver the circuit's output power to several water-insulated radial transmission lines that are connected in parallel at small radius by a water-insulated post-hole convolute. The accelerator can be impedance matched throughout. The coaxial transmission lines are sufficiently long to transit-time isolate the LC drive circuits from the water-insulated transmission lines, which allows each LC drive circuit to be operated without being affected by the other circuits. This enables the creation of any power pulse that can be mathematically described as a time-shifted linear combination of the pulses of the individual LC drive circuits. Therefore, the output power of the convolute can provide a variable pulse shape to a load that can be used for magnetically driven, quasi-isentropic compression experiments and other applications. | 12-17-2015 |
| 20160113104 | ELECTRON ACCELERATOR HAVING A COAXIAL CAVITY - Disclosed embodiments include an electron accelerator, having a resonant cavity having an outer conductor and an inner conductor; an electron source configured to generate and to inject a beam of electrons transversally into the resonant cavity; a radio frequency (RF) source coupled to the resonant cavity and configured to: energize the resonant cavity with an RF power at a nominal RF frequency, and generate an electric field into said resonant cavity that accelerates the electrons of the electron beam a plurality of times into the cavity and according to successive and different transversal trajectories; and at least one deflecting magnet configured to bend back the electron beam that emerges out of the cavity and to redirect the electron beam towards the cavity. | 04-21-2016 |
