| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Circular induction accelerator for piercing logging | JP26512191 | 1991-10-14 | JPH05335098A | 1993-12-17 | FUERITSUKUSU KEI CHIEN; UIRIAMU BERUTOTSUTSUI; GEIRII DABURIYU KORISU; UIRIAMU DAIAMONDO; JIYOSEFU EI DOOSETSUTO; JIEFURII ESU SHIYUBAITSUAA |
| PURPOSE: To generate a flux of high energy gamma rays photons by accelerating electrons up to a required energy and beam current, and thereafter, upsetting betatron conditions again so that the electrons collide with a target. CONSTITUTION: Electrons injected into an acceleration chamber 16 are trapped therein by an applied magnetic field, are guided along a nearly circular starting route until reaching a required end point energy, and are extracted outside from the circular orbit. The electrons are injected into a vacuum chamber 16 by an injector 26 extending via a boat in the acceleration chamber. Soon after its injection, betatron conditions are established again although they are upset at the injection time, and the electrons are arranged so as to take an nearly circular orbit 24 in the acceleration chamber 16. After the electrons are accelerated up to the required energy and beam current, the betatron conditions are again upset so that the electrons collide with a target 28, and at that time the flux of high energy gamma radiation photons are generated. COPYRIGHT: (C)1993,JPO | ||||||
| 22 | METHODS AND SYSTEMS FOR ACCELERATING PARTICLES USING INDUCTION TO GENERATE AN ELECTRIC FIELD WITH A LOCALIZED CURL | EP09700266.1 | 2009-01-09 | EP2232960A1 | 2010-09-29 | BERTOZZI, William; KORBLY, Stephen, E.; LEDOUX, Robert, J. |
| A method is described wherein the acceleration of a beam of charged particles is achieved using the properties of conductors to limit the penetration of magnetic and electric fields in short times compared to natural time constants. This allows the use of induction electric fields with a Curl localized to a gap to accelerate particles while coupling the accelerated beam to a power supply. Two methods of coupling the particle beam to the power supply are disclosed as exemplary. | ||||||
| 23 | BLEIABSCHIRMUNG FÜR EIN BETATRON | EP07802172.2 | 2007-09-06 | EP2082627A1 | 2009-07-29 | BERMUTH, Jörg; GEUS, Georg; HESS, Gregor; VIEHBÖCK, Urs |
| The invention relates to lead shielding (1) for a betatron (2) in an X-ray generator, consisting of at least four shielding parts (7, 8, 9, 10) of which two (7, 8) are semi-cylindrical and provided with recesses (11, 12) in the envelope surfaces thereof. The semi-cylindrical shielding parts (7, 8) are arranged in corresponding recesses of the remaining shielding parts (9, 19), by means of the envelope surfaces thereof, such that the recesses (11, 12) in the envelope surfaces form air channels between the semi-cylindrical shielding parts (7, 8) and the remaining shielding parts (9, 10). | ||||||
| 24 | Low voltage modulator for circular induction accelerator | EP91402733.9 | 1991-10-14 | EP0481864B1 | 1996-03-20 | Chen, Felix K. |
| 25 | Circular induction accelerator for borehole logging | EP91402734.7 | 1991-10-14 | EP0481865A1 | 1992-04-22 | Chen, Felix K.; Bertozzi, William; Corris, Gary W.; Diamond, William; Doucet, Joseph A.; Schweitzer, Jeffrey S. |
A compact circular magnetic induction accelerator (betatron) for use as a borehole gamma ray source includes a field magnet and generally circular pole pieces composed of a class of ferrite having the general formula M²⁺F₂³⁺O₄, where M represents two or more divalent metal ions from the group consisting of Mn, Zn and Ni. The core magnet is in the form of two symmetrical closed loops, with one leg of each loop passing axially through the circular pole pieces. The field coil and the core coil may be arranged in series or in parallel, and switching circuits are provided for effecting electron beam capture and ejection. In an illustrative borehole application, the betatron is used as a gamma ray source in a bulk density logging tool. |
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| 26 | Laser à électrons libres | EP90402336.3 | 1990-08-22 | EP0415823A1 | 1991-03-06 | Etievant, Claude |
Il comprend une source (2) d'électrons, des moyens (4) d'accélération des électrons, qui fournissent un faisceau d'électrons, un anneau de stockage (6) de ce faisceau,comportant au moins une partie rectiligne, des moyens magnétiques (22) prévus pour créer une configuration magnétique fermée, ayant une première composante qui est principalement dirigée parallèlement au faisceau d'électrons en circulation et qui permet le confinement de ce faisceau, et une seconde composante apte à compenser la dérive des électrons transversalement à l'axe du faisceau d'électrons, et au moins un onduleur magnétique (10) qui est placé au niveau de la partie rectiligne et qui est traversé par le faisceau d'électrons. Application à la fusion contrôlée par confinement magnétique. |
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| 27 | METHOD AND APPARATUS FOR ACCELERATING CHARGED PARTICLES | EP81902878.0 | 1981-10-05 | EP0062058A1 | 1982-10-13 | ROSTOKER, Norman |
| Procede et moyen d'acceleration de faisceaux de particules chargees a hautes densites de courant aux energies relativistes tels que, par exemple, ceux qui sont utilises dans un betatron (100) capable de porter un courant de plusieurs dizaines de kiloamperes a des energies jusqu'a 300 Mev. Le principe de base sur lequel repose la presente invention consiste a contenir un faisceau de particules chargees, plus particulierement un faisceau d'electrons, a l'aide d'un champ magnetique engendre par un courant dans un enroulement (103) orientant le champ le long du faisceau. Au fur et a mesure que l'intensite du champ magnetique s'accroit en fonction du temps, le faisceau d'electrons se comprime dans la direction transversale au faisceau dans une region de haute densite de charge. Les electrons peuvent ensuite etre acceleres dans le sens du champ magnetique pour former un faisceau ultra-relativiste. A de telles energies, le faisceau tend a se stabiliser et le champ magnetique de contention n'est plus necessaire. On peut donc laisser decroitre le champ magnetique. | ||||||
| 28 | CHARGED PARTICLE BEAM TRANSPORT SYSTEM AND PARTICLE BEAM TREATMENT DEVICE | EP12877384 | 2012-05-24 | EP2858463A4 | 2015-12-23 | SUGAHARA KENGO; ODAWARA SHUHEI; YOSHIDA KATSUHISA |
| 29 | SINGLE DRIVE BETATRON | EP08863289.8 | 2008-09-25 | EP2140740B1 | 2013-04-10 | CHEN, Felix |
| 30 | COOLING SYSTEMS AND METHODS | EP10703935.6 | 2010-02-09 | EP2394498A2 | 2011-12-14 | BEGG, Michael, Colin; GOLDIE, Frederick, Thomas, David |
| An ion therapy system comprises a particle accelerator (1) mounted on a rotatable gantry (2). The particle accelerator includes a superconducting coil (17) which is rotates about its axis as the particle accelerator rotates about the gantry axis in use to direct an output beam towards a target from different directions. The particle accelerator is rotatable through (180) degrees to move the beam through a corresponding arc. The particle accelerator includes cooling system arranged to cool the coil as the coil rotates. The superconducting coil (17) is mounted in a coil support (25). The coil is surrounded by a cryogen chamber (32) which is located radially outwardly from the coil (17) on the other side of the support (25). The cryogen chamber is in fluid communication with a cryogen recondensing unit (29) whereby vaporized cryogen may flow from the cryogen chamber (32) to the cryogen recondensing unit (29) to be recondensed in use before returning to the cryogen chamber. Thermally conductive means (40) is arranged to facilitate heat transfer from the superconducting coil (17) to the cryogen chamber (32) to vaporize cryogen contained therein in use and thereby remove heat from the coil | ||||||
| 31 | BLEIABSCHIRMUNG FÜR EIN BETATRON | EP07802172.2 | 2007-09-06 | EP2082627B1 | 2010-12-22 | BERMUTH, Jörg; GEUS, Georg; HESS, Gregor; VIEHBÖCK, Urs |
| The invention relates to lead shielding (1) for a betatron (2) in an X-ray generator, consisting of at least four shielding parts (7, 8, 9, 10) of which two (7, 8) are semi-cylindrical and provided with recesses (11, 12) in the envelope surfaces thereof. The semi-cylindrical shielding parts (7, 8) are arranged in corresponding recesses of the remaining shielding parts (9, 19), by means of the envelope surfaces thereof, such that the recesses (11, 12) in the envelope surfaces form air channels between the semi-cylindrical shielding parts (7, 8) and the remaining shielding parts (9, 10). | ||||||
| 32 | SINGLE DRIVE BETATRON | EP08863289.8 | 2008-09-25 | EP2140740A1 | 2010-01-06 | CHEN, Felix |
| A betatron includes a betatron magnet with a first guide magnet having a first pole face and a second guide magnet having a second pole face. Both the first and the second guide magnet have a centrally disposed aperture and the first pole face is separated from the second pole face by a guide magnet gap. A core is disposed within the centrally disposed apertures in an abutting relationship with both guide magnets. The core has at least one core gap. A drive coil is wound around both guide magnet pole faces. An orbit control coil has a contraction coil portion wound around the core gap and a bias control portion wound around the guide magnet pole faces. The contraction coil portion and the bias control portion are connected but in opposite polarity. Magnet fluxes in the core and guide magnets return through peripheral portions of the betatron magnet. | ||||||
| 33 | KREISBESCHLEUNIGER MIT EINSTELLBARER ELEKTRONEN-ENDENERGIE | EP07802170.6 | 2007-09-06 | EP2095696A1 | 2009-09-02 | BERMUTH, Jörg; GEUS, Georg; HESS, Gregor; VIEHBÖCK, Urs |
| The invention relates to a betatron (1) for producing pulses of accelerated electrons, particularly in an x-ray testing device, comprising at least one main field coil (L1, L2), one expansion coil (6) for transferring the accelerated electrons to a target, and one electronic control system (7) of the expansion coil (6) for applying an expansion pulse to the expansion coil (6). The electronic control system (7) of the expansion coil (6) is designed such that the time of the expansion pulse for adjusting the final energy of the electrons is variable relative to the main field. | ||||||
| 34 | Circular induction accelerator for borehole logging | EP91402734.7 | 1991-10-14 | EP0481865B1 | 1996-03-20 | Chen, Felix K.; Bertozzi, William; Corris, Gary W.; Diamond, William; Doucet, Joseph A.; Schweitzer, Jeffrey S. |
| 35 | METHODS AND SYSTEMS FOR ACCELERATING PARTICLES USING INDUCTION TO GENERATE AN ELECTRIC FIELD WITH A LOCALIZED CURL | EP09700266.1 | 2009-01-09 | EP2232960B1 | 2016-09-07 | BERTOZZI, William; KORBLY, Stephen, E.; LEDOUX, Robert, J. |
| 36 | CHARGED PARTICLE BEAM TRANSPORT SYSTEM AND PARTICLE BEAM TREATMENT DEVICE | EP12877384.3 | 2012-05-24 | EP2858463A1 | 2015-04-08 | SUGAHARA Kengo; ODAWARA Shuhei; YOSHIDA Katsuhisa |
The objective is to make a charged particle beam transport system absorb a difference in emittances, caused when a beam is launched from an accelerator in a slow-extraction manner, and to realize a beam size having a small rotation dependency at an isocenter. A charged particle beam transport system (59) according to the present invention is characterized in that in a fixed transport unit (61), a phase of a phase space distribution of a charged particle beam (31) at an inlet of a rotating deflection unit (60) that rotates around an gantry rotation axle (15) of a rotating gantry coincides with a phase determined by a calculation based on an average value of a first phase advance and a second phase advance. The first phase advance is defined as a change in a phase, of the phase space distribution, that changes when the charged particle beam (31) travels from the inlet of the rotating deflection unit (60) to an isocenter (IC) in the case where a gantry angle is a gantry reference angle; the second phase advance is defined as a change in a phase at a time when the gantry angle is pivoted by 90° from the gantry reference angle. |
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| 37 | KREISBESCHLEUNIGER MIT EINSTELLBARER ELEKTRONEN-ENDENERGIE | EP07802170.6 | 2007-09-06 | EP2095696B1 | 2014-11-19 | BERMUTH, Jörg; GEUS, Georg; HESS, Gregor; VIEHBÖCK, Urs |
| 38 | METHODS AND SYSTEMS FOR ACCELERATING PARTICLES USING INDUCTION TO GENERATE AN ELECTRIC FIELD WITH A LOCALIZED CURL | EP09700266 | 2009-01-09 | EP2232960A4 | 2014-07-02 | BERTOZZI WILLIAM; KORBLY STEPHEN E; LEDOUX ROBERT J |
| 39 | A SYSTEM COMPRISING A ROTATABLE PARTICLE ACCELERATOR AND COOLING MEANS, AND METHOD OF OPERATING THE SYSTEM | EP10703935.6 | 2010-02-09 | EP2394498B1 | 2013-04-17 | BEGG, Michael, Colin; GOLDIE, Frederick, Thomas, David |
| 40 | Low voltage modulator for circular induction accelerator | EP91402733.9 | 1991-10-14 | EP0481864A1 | 1992-04-22 | Chen, Felix K. |
A modulator circuit for a betatron includes an independent low voltage D.C. power supply, an intermediate low voltage capacitor connected to one side of the betatron winding, and a high voltage capacitor connected to the other side of the betatron winding. Unidirectional current devices normally permit current flow from the voltage capacitor, through the betatron winding to the high voltage capacitor. Energy is thereby transferred from the power supply and low voltage capacitor through the betatron winding to the high voltage capacitor. Switches are provided selectively to reverse the direction of current flow and thereby discharge the energy stored in both capacitors into the betatron winding to excite the betatron magnetic circuit. Upon discharge of the high voltage capacitor, the unidirectional current devices once again restore normal current flow, so that the energy stored in the betatron electromagnet is returned to the high voltage capacitor. Repetition of this charging/discharging/recovery cycle pumps up the charge on the high voltage capacitor and multiplies the voltage. |
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