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664results about "Transit-time tubes" patented technology
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Light emitting diode (LED) light bulbs
ActiveUS6948829B2Improve performanceEasy to manufactureFurnace componentsPoint-like light sourceEngineeringPrinted circuit board
A light emitting diode (LED) light bulb that includes plural individual elements as sub-assembly elements of the overall light bulb. Different sub-assembly elements of a lens, a LED printed circuit board, a housing also functioning as a heat sink, a lower housing, and other individual sub-assembly components are utilized. The LED printed circuit board sub-assembly containing the LEDs can also be provided relatively close to a base.
Owner:DIALIGHT CORP
Inductively powered lamp assembly
InactiveUS6917163B2Quiet operationLess-precise alignmentPoint-like light sourceElongate light sourcesResonanceCapacitor
A lamp assembly configured to inductively receive power from a primary coil. The inductively powered lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp and the secondary to tune the circuit to resonance. The capacitor is preferably selected to have a reactance that is substantially equal to or slightly less than the reactance of the secondary and the impedance of the lamp. In a second aspect, the inductively powered lamp assembly includes a sealed transparent sleeve that entirely encloses the lamp circuit so that the transparent sleeve is fully closed and unpenetrated. The transparent sleeve is preferably the lamp sleeve itself, with the secondary, capacitor and any desired starter mechanism disposed within its interior.
Owner:PHILIPS IP VENTURES BV
Inductively powered apparatus
InactiveUS20050122058A1Brightness of light can be controlledEfficiently receive powerLiquid separation auxillary apparatusPoint-like light sourcePower apparatusElectric power
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
Owner:PHILIPS IP VENTURES BV
Inductively powered apparatus
InactiveUS20050127849A1Brightness variesEfficient powerLiquid separation auxillary apparatusPoint-like light sourceEngineeringPower apparatus
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of power supplied to the inductively powered device. In another aspect, the present invention is directed to an inductive power supply system having a primary coil and a receptacle disposed within the magnetic field generated by the primary coil. One or more inductively powered devices are placed randomly within the receptacle to receive power inductively from the primary coil. The power supply circuit includes circuitry for adjusting the power supplied to the primary coil to optimize operation based on the position and cumulative characteristics of the inductively powered device(s) disposed within the receptacle.
Owner:PHILIPS IP VENTURES BV
Isochronous cyclotron and method of extraction of charged particles from such cyclotron
InactiveUS6683426B1Simple conceptImprove extraction efficiencyTransit-time tubesMagnetic resonance acceleratorsLower polePlateau
The present inventions is related to a superconducting or non-superconducting isochronous sector-focused cyclotron, comprising an electromagnet with an upper pole and a lower pole that constitute the magnetic circuit, the poles being made of at least three pair of sectors (3,4) called "hills" where the vertical gap between said sectors is small, these hill-sectors being separated by sector-formed spaces called "valleys" (5) where the vertical gap is large, said cyclotron being energized by at least one pair of main coils (6), characterised in that at least one pair of upper and lower hills is significantly longer than the remaining pair of hill sectors in order to have at least one pair of extended hill sectors (3) and at least one pair of non-extended hill sectors (4) in that a groove (7) or a "plateau" (7') which follows the shape of the extracted orbit is present in said pair of extended hill sectors (3) in order to produce a dip (200) in the magnetic field.
Owner:ION BEAM APPL
Programmable radio frequency waveform generator for a synchrocyclotron
ActiveUS7402963B2Stability-of-path spectrometersBeam/ray focussing/reflecting arrangementsCapacitanceRadio frequency
Owner:MEVION MEDICAL SYST
Particle beam irradiation system and method of adjusting irradiation apparatus
InactiveUS7026636B2Improve uniformityRadiation/particle handlingMagnetic resonance acceleratorsBragg peakParticle beam
The present invention provides an increased degree of uniformity of radiation dose distribution for the interior of a diseased part. A particle beam therapy system includes a charged particle beam generation apparatus and an irradiation apparatus. An ion beam is generated by the charged particle beam generation apparatus. The irradiation apparatus exposes a diseased part to the generated ion beam. A scattering device, a range adjustment device, and a Bragg peak spreading device are installed upstream of a first scanning magnet and a second scanning magnet. The scattering device and the range adjustment device are combined together and moved along a beam axis, whereas the Bragg peak spreading device is moved independently along the beam axis. The scattering device moves to adjust the degree of ion beam scattering. The range adjustment device moves to adjust ion beam scatter changes caused by an absorber thickness adjustment. The Bragg peak spreading device moves to adjust ion beam scatter changes arising out of an SOBP device. These adjustments provide uniformity of radiation dose distribution for the diseased part.
Owner:HITACHI LTD
Device and method for regulating intensity of beam extracted from a particle accelerator
InactiveUS6873123B2Thermometer detailsStability-of-path spectrometersParticle acceleratorAccelerated particle
The invention concerns a device (10) for regulating the intensity of a beam extracted from a particle accelerator, such as a cyclotron, used for example for protontherapy, said particles being generated from an ion source. The invention is characterized in that it comprises at least: a comparator (90) determining a difference ε between a digital signal IR representing the intensity of the beam measured at the output of the accelerator and a setpoint value IC of the beam intensity: a Smith predictor (80) which determines on the basis of the difference ε, a correct value of the intensity of the beam IP; an inverted correspondence table (40) supplying, on the basis of the corrected value of the intensity of the beam IP, a setpoint value IA for supply arc current from the ion source (20).
Owner:ION BEAM APPL
LED light bulbs
ActiveUS20110298371A1Address limitationsPlanar light sourcesPoint-like light sourceEngineeringLED lamp
LED light bulbs include openings in base or cover portions, and optional forced flow elements, for convective cooling. Thermally conductive optically transmissive material may be used for cooling, optionally including fins. A LED light engine may be fabricated from a substrate via planar fabrication techiques and shaped to form a substantially rigid upright support structure. Mechanical, electrical, and thermal connections may be made between a LED light engine and a LED light bulb.
Owner:IDEAL IND LIGHTING LLC
Charged particle therapy system, range modulation wheel device, and method of installing range modulation wheel device
InactiveUS7053389B2Increase the number ofShort timeStability-of-path spectrometersDiagnosticsIrradiationPatient treatment
The invention provides a charged particle therapy system capable of increasing the number of patients treated. An irradiation filed forming apparatus for irradiating a charged particle beam extracted from a charged particle beam generator to an irradiation target includes an RMW device. The RMW device comprises a housing and an RMW disposed within the housing. A rotary shaft of the RMW is rotatably mounted to the housing. The RMW device is detachably installed in an RMW holding member provided in a casing of the irradiation filed forming apparatus. The housing can be placed in contact with the RMW holding member, and hence positioning of the rotary shaft of the RMW to a predetermined position can be performed in a short time. This contributes to cutting a time required for treatment per patient and increasing the number of patients treated.
Owner:HITACHI LTD
Particle therapy system
InactiveUS6936832B2Simply and quickly correctReduce laborRadiation/particle handlingElectrode and associated part arrangementsTransport systemLight beam
A particle therapy system is provided which can simply and quickly correct a beam orbit. In a particle therapy system provided with an irradiation facility comprising a first beam transport system for receiving a beam and transporting the beam to the patient side, and an irradiation nozzle for forming an irradiation field of the beam, the particle therapy system comprises first beam position monitors for detecting a position upstream of the irradiation nozzle at which the beam passes, second beam position monitors for detecting a position downstream of the irradiation nozzle at which the charged-particle beam passes, and first and second steering magnets. Correction bending amounts for causing the beam to be coincident with a predetermined orbit after the correction are determined in accordance with detected results from the first and second beam position monitors, and first and second steering magnets are excited under control so that the determined correction bending amounts are obtained.
Owner:HITACHI LTD
System for the Delivery of Proton Therapy
InactiveUS20080023644A1Improve consistencyIncrease rangeThermometer detailsStability-of-path spectrometersProtonIntensity modulation
A process for an intensity-modulated proton therapy of a predetermined volume within an object includes discretising the predetermined volume into a number of iso-energy layers each corresponding to a determined energy of the proton beam. A final target dose distribution is determined for each iso-energy layer. The final target dose distribution or at least a predetermined part of this final target dose distribution is applied by parallel beam scanning by controlling the respective beam sweepers, thereby scanning one iso-energy layer after the other using an intensity-modulated proton beam while scanning a predetermined iso-energy layer.
Owner:PAUL SCHERRER INSTITUT
Particle beam irradiation system and method of adjusting irradiation field forming apparatus
ActiveUS7049613B2Increase in sizePenumbra can be reducedElectrotherapyRadiation/particle handlingParticle beamLight beam
A particle therapy system, as one example of a particle beam irradiation system, comprises a charged particle beam generator and an irradiation field forming apparatus. An ion beam from the charged particle beam generator is irradiated to a diseased part in the body of a patient through the irradiation field forming apparatus. A scattering compensator and a range modulation wheel (RMW) are disposed on the upstream side in a direction of beam advance and are movable along a beam axis. The movement of the scattering compensator and the RMW adjusts a size of the ion beam entering a scatterer device, whereby a change in scattering intensity of the ion beam in the scatterer device is adjusted. As a result, a penumbra in dose distribution is reduced and a more uniform dose distribution in a direction perpendicular to the direction of beam advance is obtained in the diseased part.
Owner:HITACHI LTD
Device for varying the energy of a particle beam extracted from an accelerator
InactiveUS6433336B1Radiation/particle handlingElectrode and associated part arrangementsLower limitParticle accelerator
A device for varying the energy of a particle beam extracted from a fixed-energy particle accelerator includes a block of energy degrading material positioned in the path of the particle beam. The block of energy degrading material is preferably in the form of a ring arranged on a wheel. The ring is of a staircase configuration, having discrete steps defining a thickness between parallel entry and exit faces. According to one aspect of the invention, the block is configured so that the particle beam energy variation reaches a maximum at the edges of each step. This upper limit is also the lower limit of the next step. Thus, continuous energy variation is possible despite the fact that the thickness of the block varies in discrete steps.
Owner:ION BEAM APPL
Particle beam processing system
InactiveUS6838676B1Decreased beam sizeLow costStability-of-path spectrometersMaterial analysis by optical meansParticle beamParticle physics
A method for slowing and controlling a beam of charged particles includes the steps of superimposing at least one magnetic field on a mass and passing the beam through the mass and at least one magnetic field such that the beam and the mass slows but does not stop the particles. An apparatus for slowing and controlling a beam of charged particles includes a bending magnetic field superimposed on a focusing magnetic field within a mass.
Owner:HBAR TECH LC
Medical particle irradiation apparatus
InactiveUS7030396B2Simple structurePrevent rotationThermometer detailsBeam/ray focussing/reflecting arrangementsMoving floorParticle beam
Disclosed is a medical particle irradiation apparatus comprising a rotating gantry 1 including an irradiation unit 4 emitting particle beams; an annular frame 16 located within and supported by the rotating gantry 1 such that it can rotate relative to the rotating gantry 1; an annular frame 15 fixedly located opposite the annular frame 16; an anti-corotation mechanism 34 being in contact with both the annular frames 16 and 15 to prevent the annular frame 16 from rotating together with the rotating gantry 1 during rotation of the rotating gantry 1; and a flexible moving floor 17 interposed between the annular frames 15 and 16, the flexible moving floor 17 being engaged with the annular frames 15 and 16 in such a manner as to move freely such that its bottom is substantially level and that it moves as the rotating gantry rotates.
Owner:HITACHI LTD +1
Charged-particle beam accelerator, particle beam radiation therapy system using the charged-particle beam accelerator, and method of operating the particle beam radiation therapy system
ActiveUS7122978B2Easy to identifyMagnetic induction acceleratorsMagnetic resonance acceleratorsParticle acceleratorResonance
A charged-particle beam accelerator includes an RF-KO unit for increasing the amplitude of betatron oscillation of a charged-particle beam within a stable region of resonance and an extraction quadrupole electromagnet unit for varying the stable region of resonance. The RF-KO unit is operated within a frequency range in which the circulating beam does not go beyond a boundary of the stable region of resonance, and the extraction quadrupole electromagnet unit is operated with appropriate timing as required for beam extraction so that the charged-particle beam is extracted with desired timing.
Owner:MITSUBISHI ELECTRIC CORP
High-current DC proton accelerator
InactiveUS20100033115A1Reduce harmful effectsLimit divergence of beamTransit-time tubesDirect voltage acceleratorsHigh energyNeutron capture
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.
Owner:ION BEAM APPL
Particle beam therapy system
ActiveUS7772577B2Quality improvementLow costElectrode and associated part arrangementsMaterial analysis by optical meansTransport systemSynchrotron
A particle beam therapy system using a spot scanning method includes a synchrotron, a beam transport system, an irradiation system, and a controller. A controller is configured to turn on a radio frequency electromagnetic field to be applied to an extraction system when a charged particle beam is to be supplied to the irradiation system, and turn off the radio frequency electromagnetic field to be applied to the extraction system when the supply of the charged particle beam to the irradiation system is to be blocked by means of an electromagnet provided in the beam transport system or in the synchrotron. The controller is also adapted to turn off a radio frequency acceleration voltage to be applied to an acceleration cavity in synchronization with the turning-off of the radio frequency electromagnetic field to be applied to the extraction device.
Owner:HITACHI LTD
Light emitting diode driver
InactiveUS20030122502A1Static indicating devicesElectroluminescent light sourcesLed arrayAlternating current
A LED driver is disclosed. The LED driver includes a high frequency inverter and an impedance circuit. The high frequency inverter operates to produce a high frequency voltage source whereby the impedance circuit directs a flow of alternating current through a LED array including one or more anti-parallel LED pairs, one or more anti-parallel LED strings, and / or one or more anti-parallel LED matrixes. A transistor can be employed to divert the flow of the alternating current from the LED array, or to vary the flow of the alternating current through LED array.
Owner:SIGNIFY HLDG BV
Medical particle irradiation apparatus
InactiveUS6903356B2Simple structurePrevent rotationThermometer detailsBeam/ray focussing/reflecting arrangementsMoving floorParticle beam
Disclosed is a medical particle irradiation apparatus comprising a rotating gantry 1 including an irradiation unit 4 emitting particle beams; an annular frame 16 located within and supported by the rotating gantry 1 such that it can rotate relative to the rotating gantry 1; an annular frame 15 fixedly located opposite the annular frame 16; an anti-corotation mechanism 34 being in contact with both the annular frames 16 and 15 to prevent the annular frame 16 from rotating together with the rotating gantry 1 during rotation of the rotating gantry 1; and a flexible moving floor 17 interposed between the annular frames 15 and 16, the flexible moving floor 17 being engaged with the annular frames 15 and 16 in such a manner as to move freely such that its bottom is substantially level and that it moves as the rotating gantry rotates.
Owner:HITACHI LTD +1
Charged particle irradiation system
ActiveUS7838855B2Improving the accuracy in irradiation position of a charged particle beamReduce the possibilityElectrode and associated part arrangementsMaterial analysis by optical meansExcitation currentParticle physics
A charged particle irradiation system that positions the beam at a target position to avoid irradiation of normal tissue includes an acceleration system 6 for extracting a charged particle beam, scanning magnets 24 and 25, and charged particle beam position monitors 26 and 27. On the basis of signals received from the charged particle beam position monitors 26 and 27, the control unit 70 calculates a beam position at a target position and then controls the scanning magnets 24 and 25 so that the charged particle beam is moved to a desired irradiation position at the target position. The control unit 70 corrects the value of an excitation current applied to each of the scanning magnets 24 and 25 on a specified cycle basis on the basis of information about the position and the angle of the charged particle beam.
Owner:HITACHI LTD
Modular Networked Light Bulb
ActiveUS20110095687A1Point-like light sourceElectric circuit arrangementsElectricityNetworking protocol
Various methods of manufacturing a lighting apparatus and embodiments of a modular networked lighting apparatus are disclosed. One method defines a mechanical form factor with a minimum set of electrical connections for a networking module, builds a subassembly of the networked lighting apparatus, the subassembly comprising attachment points compatible with the mechanical form factor for the networking module and contacts for the minimum set of electrical connections for the networking module, installs a networking module into the subassembly of the networked lighting apparatus, the networking module compatible with a selected networking protocol for the networked lighting apparatus, completes the final assembly of the networked lighting module, and marks the networked lighting apparatus to indicate the selected networking protocol for the networked lighting apparatus. In some embodiments, the lighting apparatus may function without the networking module installed. One embodiment of the modular, networked light bulb has means for supporting and holding an electronics module conforming with a predetermined form factor in place, and means for allowing the electronics module to control at least a brightness level of the at least one LED. The modular networked light bulb may have a networked controller conforming with the predetermined form factor used as the electronics module. The networked controller is able to connect to a network and may be positioned and held by the means for supporting and holding an electronics module.
Owner:SIGNIFY HLDG BV
Charged particle beam extraction system and method
ActiveUS7385203B2Reduce frequencyProcess stabilityThermometer detailsBeam/ray focussing/reflecting arrangementsBragg peakIon beam
A charged particle beam extraction system and method capable of ensuring higher safety when extraction of an ion beam is on / off-controlled during irradiation of the ion beam for treatment. The charged particle beam extraction system comprises a charged particle beam generator including a synchrotron, a range modulation wheel (RMW) for forming a Bragg peak width of a charged particle beam extracted from the charged particle beam generator, a gate signal generator for controlling start and stop of extraction of the charged particle beam from the charged particle beam generator in accordance with a rotational angle of the RMW, and an irradiation control / determination section for determining whether the start and stop of extraction of the charged particle beam is controlled at desired timing by the gate signal generator.
Owner:HITACHI LTD
Ion radiation therapy system with variable beam resolution
ActiveUS20090189095A1Accurate depictionSmall featureElectrode and associated part arrangementsMachines/enginesLight beamTrade offs
Owner:WISCONSIN ALUMNI RES FOUND
Bi-polar treatment facility for treating target cells with both positive and negative ions
A system for treating target cells with both positive and negative ions comprises a bi-polar beam delivery system configured to create and deliver both positive ion beams and negative ion beams. The bi-polar beam delivery system comprises a bi-polar accelerator configured to accelerate positive and negative ions in the same direction making such a bi-polar beam delivery system practical.
Owner:NANOLIFE SCI
Charged particle cancer therapy and patient breath monitoring method and apparatus
The invention comprises a patient respiration monitoring and / or control method and apparatus used in conjunction with multi-axis charged particle or proton beam radiation therapy of cancerous tumors. The respiration monitoring system uses thermal and / or force sensors to determine where a patient is in a respiration cycle in combination with a feedback signal control delivered to the patient to inform the patient when breath control is required. The resulting breath control is timed with charged particle delivery to the tumor to enhance accuracy, precision, and / or efficiency of tumor treatment.
Owner:BALAKIN ANDREY VLADIMIROVICH +1
Particle beam processing system
InactiveUS20050017193A1Small sizeLow costStability-of-path spectrometersBeam/ray focussing/reflecting arrangementsParticle beamLight beam
Owner:HBAR TECH LC
Charged-particle beam accelerator, particle beam radiation therapy system using the charged-particle beam accelerator, and method of operating the particle beam radiation therapy system
ActiveUS20050231138A1Easy to identifyMagnetic induction acceleratorsMagnetic resonance acceleratorsParticle beamResonance
A charged-particle beam accelerator includes an RF-KO unit for increasing the amplitude of betatron oscillation of a charged-particle beam within a stable region of resonance and an extraction quadrupole electromagnet unit for varying the stable region of resonance. The RF-KO unit is operated within a frequency range in which the circulating beam does not go beyond a boundary of the stable region of resonance, and the extraction quadrupole electromagnet unit is operated with appropriate timing as required for beam extraction so that the charged-particle beam is extracted with desired timing.
Owner:MITSUBISHI ELECTRIC CORP
Cyclotron equipped with novel particle beam deflecting means
The invention concerns a cyclotron for accelerating a charged particle beam circulating in the median plane essentially in the form of two poles inducing a magnetic field and having a so-called axial injector, that is an injector arranged outside the cyclotron substantially along the main axis of the cyclotron and hence perpendicular to the median plane thereof and which is combined with deflecting means which enable the particle beam to be deflected until it is positioned in the median plane. The invention is characterized in that the deflecting means consist of a magnetic deflector.
Owner:ION BEAM APPL
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