ecr – -Translation – Keybot Dictionary

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  Booster de charge  
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Les booster de charge ECR
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ECR charge breeders
  Présentation  
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Les sources à la Résonance Cyclotronique Electronique (ECR)
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Electron Cyclotron Resonance Ion sources
  Théorie Structure Nuclé...  
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Source ECR 60 GHz
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Collaborations
  Source ECR 60 GHz  
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ainsi pour une fréquence ECR de 28 GHz on devra avoir:
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Stage d'observation en entreprise (collège et lycée)
  Booster de charge  
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Un booster de charge ECR est une source d'ions dans laquelle on injecte un faisceau d'ions monochargés afin de le multi-ioniser. La première application de ce dispositif concerne les accélérateurs d'ions radioactifs qui sont construits actuellement dans le monde pour étendre les champs de recherche de la physique du noyau.
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An ECR charge breeder is an ion source where we inject a monocharged ion beam in order to multi-ionize it. The first application of such a device concerns the production of accelerated radioactive ion beams, accelerators presently built worldwide to extend the research objectives of nuclear physics. More recently, we have pointed out that the charge breeding method was like a probe allowing significant progresses in the fundamental knowledge about physics involved in ECR ion sources.
  Booster de charge  
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Un booster de charge ECR est une source d'ions dans laquelle on injecte un faisceau d'ions monochargés afin de le multi-ioniser. La première application de ce dispositif concerne les accélérateurs d'ions radioactifs qui sont construits actuellement dans le monde pour étendre les champs de recherche de la physique du noyau.
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An ECR charge breeder is an ion source where we inject a monocharged ion beam in order to multi-ionize it. The first application of such a device concerns the production of accelerated radioactive ion beams, accelerators presently built worldwide to extend the research objectives of nuclear physics. More recently, we have pointed out that the charge breeding method was like a probe allowing significant progresses in the fundamental knowledge about physics involved in ECR ion sources.
  Présentation  
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Une source d'ions ECR est une cavité sous vide, immergée dans un champ magnétique, et dans laquelle on injecte une onde hyperfréquence. Celle-ci permet le chauffage des électrons et la formation d'un plasma, les caractéristiques de sa population ionique dépendront de l'énergie moyenne des électrons et du confinement magnétique.
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An ECR ion source is a vacuum chamber immersed in a magnetic field and where we inject an HF electromagnetic wave. When the resonance condition (ωHF=eB/me) is satisfied, some energy transfer occurs between the electromagnetic wave and the electrons. A plasma is created, its ionic population characteristics depend mainly on the electrons average energy and on the magnetic confinement. The ions of the plasma are extracted with an electric field established by a set of electrodes placed at the extrimity of the cavity, where the magnetic field lines guide the ions.
  SPIRAL 2 - Coupleurs RF  
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Il est constitué par deux sources ECR (Electron Cyclotron Resonance), une section accélératrice en cuivre (Radio Frequency Quadrupole ou RFQ), un Linac Supraconducteur et des lignes de transport de faisceau.
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SPIRAL2 consists of two ECR sources (Electronic Cyclotron Resonance) to create the beam; an RF accelerating structure made of copper called radiofrequency quadrupole (RFQ) which gives the first acceleration to the beam and bunches the beam into particle buckets; the beam transport lines and the superconducting linear accelerator (linac) operating at a cryogenic temperature (as low as -269°C). The linac is composed of 26 superconducting cavities (Eacc = 6.5 MV/m @ D+) to accelerate the beam. Each cavity is coupled to a RF power amplifier via a RF power coupler. Our group is responsible for these RF couplers.
  Présentation  
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Un prototype de source d'ions utilisant les techniques des aimants à fort champ a été réalisé par le LPSC en collaboration avec le LNCMI, un gyrotron 60 GHz pulsé de haute puissance a été conçu et construit par la société GYCOM et l'IAP puis installé à Grenoble, ainsi en mars 2014 des premiers faisceaux d'ions ont été extraits d'une source d'ions ECR à 60 GHz possédant une zone de résonance à 2.14 T topoliquement fermée, les résultats obtenus sont tout à fait nouveaux, il s'agit d'une première mondiale.
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Since 2008, we have a research and development activity in high frequency ECR ion sources (60 GHz) in collaboration with the Laboratoire National des Champs Magnétiques Intenses in Grenoble and the Institute of Appllied Physics (Russian Academy of sciences) in Nizhny Novgorod. An ion source prototype based on a polyhelices magnetic structure (high field magnets techniques) has been built by our laboratory in collaboration with the LNCMI, a high power (300 kW), pulsed (50 to 1000 μsec), 60 GHz gyrotron has been designed and built by the GYCOM company and the Institute of Applied Physics, then installed in Grenoble. In March 2014, the first ion beams have been extracted from a 60 GHz ECR ion source having a topologicaly closed ECR resonance zone at 60 GHz (2.14T). The first obtained results are totally new with respect to the state of the art, worldwide.
  Booster de charge  
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Le principe de la méthode est le suivant: un faisceau d'ion monochargé est extrait d'une source 1+ (de technologie simple et à faible coût), il est analysé et transporté jusqu'à une source ECR dont l'injection est ouverte.
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The principle of the method is the following: a monocharged ion beam is extracted from a 1+ ion source (simple technology, low cost), after its selection by a magnetic spectrometer, it is transported towards an ECR ion source opened at the injection side. The energy of this incoming beam is adjusted in such a way it can be decelerated into the source and then captured by the plasma of this latter. The objective is to maximize the capture process and to minimize the time of the multi-ionization process, in order to extract, with the highest efficiency, multicharged ion beams of the same nature than the incoming beam. The ion source team has developed the ECR charge breeder technique for more than 15 years. This method was invented at LPSC, and then has been improved with the development of the PHOENIX ECR charge breeder. Besides the internal characteristics of the method, the important points to measure are the intensity acceptance, the emittance of the extracted n+ beams, the possible impurities intensities superimposed to the specific n+ beam selected, and the maintenance issues of the charge breeder. More than 30 ions beams of different chemical nature or isotopic state, extracted from various 1+ ion sources have been tested (He, N, Ne, Na, Mg, Al, S, Ar, Rb, Sr, Y, Ag, In, Sn, Xe, Cs, Ba, La, Pb, Bi, U).The PANTECHNIK french firm has sold two of these devices, one of them equip the TRIUMF-ISAC accelerator in Vancouver (Canada), the other one will be installed at GANIL in the frame of the SPIRAL1 upgrade.
  Booster de charge  
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Le principe de la méthode est le suivant: un faisceau d'ion monochargé est extrait d'une source 1+ (de technologie simple et à faible coût), il est analysé et transporté jusqu'à une source ECR dont l'injection est ouverte.
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The principle of the method is the following: a monocharged ion beam is extracted from a 1+ ion source (simple technology, low cost), after its selection by a magnetic spectrometer, it is transported towards an ECR ion source opened at the injection side. The energy of this incoming beam is adjusted in such a way it can be decelerated into the source and then captured by the plasma of this latter. The objective is to maximize the capture process and to minimize the time of the multi-ionization process, in order to extract, with the highest efficiency, multicharged ion beams of the same nature than the incoming beam. The ion source team has developed the ECR charge breeder technique for more than 15 years. This method was invented at LPSC, and then has been improved with the development of the PHOENIX ECR charge breeder. Besides the internal characteristics of the method, the important points to measure are the intensity acceptance, the emittance of the extracted n+ beams, the possible impurities intensities superimposed to the specific n+ beam selected, and the maintenance issues of the charge breeder. More than 30 ions beams of different chemical nature or isotopic state, extracted from various 1+ ion sources have been tested (He, N, Ne, Na, Mg, Al, S, Ar, Rb, Sr, Y, Ag, In, Sn, Xe, Cs, Ba, La, Pb, Bi, U).The PANTECHNIK french firm has sold two of these devices, one of them equip the TRIUMF-ISAC accelerator in Vancouver (Canada), the other one will be installed at GANIL in the frame of the SPIRAL1 upgrade.