Thomas Jefferson National Accelerator Facility (original) (raw)
Die Thomas Jefferson National Accelerator Facility (TJNAF), umgangssprachlich auch Jefferson Lab oder JLab, ist ein Forschungszentrum für Teilchenphysik des US-amerikanischen Department of Energy in Newport News im US-Bundesstaat Virginia.
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| dbo:abstract | Die Thomas Jefferson National Accelerator Facility (TJNAF), umgangssprachlich auch Jefferson Lab oder JLab, ist ein Forschungszentrum für Teilchenphysik des US-amerikanischen Department of Energy in Newport News im US-Bundesstaat Virginia. (de) Thomas Jefferson National Accelerator Facility (TJNAF), communément appelé Jefferson Lab (JLAB), est un laboratoire national des États-Unis géré par SURA (Southeastern Universities Research Association), association regroupant des universités du sud-est des États-Unis. Fondé en 1984, il est situé à Newport News, à proximité de Norfolk dans l'État de Virginie. Il emploie environ 550 personnes, et environ 2 500 physiciens provenant des États-Unis et d'autres pays (pays européens, Russie, Japon, Chine, Inde, etc.) viennent procéder à des expériences. Son équipement principal est l'accélérateur d'électrons CEBAF (Continuous Electron Beam Accelerator Facility), qui est formé de deux sections droites parallèles d'environ 1,4 km de long, constituées de cavités accélératrices, et de deux arcs reliant ces sections droites, constitués d'aimants de courbure, le tout étant enterré à 8 m sous la surface. À chaque tour, les électrons sont accélérés et récupèrent jusqu'à 1,5 GeV d'énergie. Ils peuvent parcourir jusqu'à cinq tours, atteignant une énergie maximale de 6 GeV. Cet accélérateur comporte aussi une source polarisée spécifique, permettant d'obtenir un faisceau d'électrons polarisés avec une polarisation jusqu'à 80 %. Le faisceau est ensuite divisé et distribué dans trois halls expérimentaux, les Halls A, B et C, dans lesquels est étudiée son interaction avec des cibles fixes. Cet équipement est principalement destiné aux études sur la structure et la spectroscopie des hadrons, en particulier des nucléons. Une caractéristique spécifique de cet accélérateur est qu'il fournit un faisceau quasi-continu, fournissant un paquet d'électrons environ toutes les picosecondes (10-12s) (en général les accélérateurs fournissent un paquet de particules toutes les microsecondes ou centaine de nanosecondes). TJNAF met aussi en œuvre le laser à électrons libres le plus puissant du monde[Quand ?], avec une énergie de faisceau de plus de 10 kilowatt. (fr) Thomas Jefferson National Accelerator Facility (TJNAF), commonly called Jefferson Lab or JLab, is a US National Laboratory located in Newport News, Virginia. Its stated mission is "to provide forefront scientific facilities, opportunities and leadership essential for discovering the fundamental structure of nuclear matter; to partner in industry to apply its advanced technology; and to serve the nation and its communities through education and public outreach." Since June 1, 2006, it has been operated by Jefferson Science Associates, LLC, a limited liability company created by Southeastern Universities Research Association and PAE Applied Technologies. Until 1996 it was known as the Continuous Electron Beam Accelerator Facility (CEBAF); commonly, this name is still used for the main accelerator. Founded in 1984, Jefferson Lab employs more than 750 people, and more than 2,000 scientists from around the world have conducted research using the facility. (en) Il CEBAF (Continuous Electron Beams Accelerator Facility) è l'acceleratore di particelle installato presso il Thomas Jefferson National Accelerator Facility (Jefferson Lab), centro ricerche di fisica nucleare U.S.A. che si trova a Newport News, in Virgina. La sua particolarità è la capacità di generare un flusso pressoché continuo di elettroni (in pratica una corrente che può arrivare a 200μA) con un'energia massima di 6GeV (che si prevede di raddoppiare prossimamente); è quindi classificato ad energia "intermedia". Dispone di tre sale esperimenti, in una delle quali è posizionato il rilevatore CLAS. (it) Лаборато́рия Дже́фферсона (англ. Thomas Jefferson National Accelerator Facility (TJNAF), Jefferson Lab, JLab) — одна из шестнадцати национальных лабораторий Министерства энергетики США. Расположена в городе Ньюпорт-Ньюс, штат Виргиния. Основана в 1984 году. Штат лаборатории составляет 675 человек. «Рабочая лошадка» лаборатории — электронный ускоритель-рекуператор (англ. Continuous Electron Beam Accelerator Facility). (ru) 托马斯·杰斐逊国家加速器装置（英語：TJNAF, Thomas Jefferson National Accelerator Facility），常被称作“杰斐逊实验室”或者“JLab”，是一个位于弗吉尼亚州紐波特紐斯（Newport News）的美国能源部国家实验室。自2006年6月1日起，杰斐逊实验室由和 PAE 应用技术（PAE Applied Technologies）共同创建的杰斐逊科学协会有限公司（Jefferson Science Associates, LLC）运营。杰斐逊实验室在1996年之前曾被称作“连续电子束加速器设施（Continuous Electron Beam Accelerator Facility，CEBAF）”；这个名称现被用于称呼杰斐逊实验室中的主加速器。 1984年建立的杰斐逊实验室现拥有多达675人的雇员，超过2000名来自于世界各地的科学家使用此设施进行过科学实验。实验室的使命是：“为发现核材料的基础结构提供前沿的科学设施、科研机会以及领导力；协助工业界进行高新技术的应用；以及通过教育和科普的方式为国家服务。 (zh) |
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| dbp:caption | Schematic of the accelerator and the experimental halls after the 12 GeV energy upgrade. (en) |
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| dbp:dates | 1984 (xsd:integer) |
| dbp:director | Stuart Henderson (en) |
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| dbp:motto | Exploring the nature of matter (en) |
| dbp:name | Thomas Jefferson National Accelerator Facility (en) Continuous Electron Beam Accelerator Facility (en) |
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| rdfs:comment | Die Thomas Jefferson National Accelerator Facility (TJNAF), umgangssprachlich auch Jefferson Lab oder JLab, ist ein Forschungszentrum für Teilchenphysik des US-amerikanischen Department of Energy in Newport News im US-Bundesstaat Virginia. (de) Лаборато́рия Дже́фферсона (англ. Thomas Jefferson National Accelerator Facility (TJNAF), Jefferson Lab, JLab) — одна из шестнадцати национальных лабораторий Министерства энергетики США. Расположена в городе Ньюпорт-Ньюс, штат Виргиния. Основана в 1984 году. Штат лаборатории составляет 675 человек. «Рабочая лошадка» лаборатории — электронный ускоритель-рекуператор (англ. Continuous Electron Beam Accelerator Facility). (ru) 托马斯·杰斐逊国家加速器装置（英語：TJNAF, Thomas Jefferson National Accelerator Facility），常被称作“杰斐逊实验室”或者“JLab”，是一个位于弗吉尼亚州紐波特紐斯（Newport News）的美国能源部国家实验室。自2006年6月1日起，杰斐逊实验室由和 PAE 应用技术（PAE Applied Technologies）共同创建的杰斐逊科学协会有限公司（Jefferson Science Associates, LLC）运营。杰斐逊实验室在1996年之前曾被称作“连续电子束加速器设施（Continuous Electron Beam Accelerator Facility，CEBAF）”；这个名称现被用于称呼杰斐逊实验室中的主加速器。 1984年建立的杰斐逊实验室现拥有多达675人的雇员，超过2000名来自于世界各地的科学家使用此设施进行过科学实验。实验室的使命是：“为发现核材料的基础结构提供前沿的科学设施、科研机会以及领导力；协助工业界进行高新技术的应用；以及通过教育和科普的方式为国家服务。 (zh) Thomas Jefferson National Accelerator Facility (TJNAF), communément appelé Jefferson Lab (JLAB), est un laboratoire national des États-Unis géré par SURA (Southeastern Universities Research Association), association regroupant des universités du sud-est des États-Unis. Fondé en 1984, il est situé à Newport News, à proximité de Norfolk dans l'État de Virginie. Il emploie environ 550 personnes, et environ 2 500 physiciens provenant des États-Unis et d'autres pays (pays européens, Russie, Japon, Chine, Inde, etc.) viennent procéder à des expériences. (fr) Il CEBAF (Continuous Electron Beams Accelerator Facility) è l'acceleratore di particelle installato presso il Thomas Jefferson National Accelerator Facility (Jefferson Lab), centro ricerche di fisica nucleare U.S.A. che si trova a Newport News, in Virgina. La sua particolarità è la capacità di generare un flusso pressoché continuo di elettroni (in pratica una corrente che può arrivare a 200μA) con un'energia massima di 6GeV (che si prevede di raddoppiare prossimamente); è quindi classificato ad energia "intermedia". (it) Thomas Jefferson National Accelerator Facility (TJNAF), commonly called Jefferson Lab or JLab, is a US National Laboratory located in Newport News, Virginia. Its stated mission is "to provide forefront scientific facilities, opportunities and leadership essential for discovering the fundamental structure of nuclear matter; to partner in industry to apply its advanced technology; and to serve the nation and its communities through education and public outreach." (en) |
| rdfs:label | Thomas Jefferson National Accelerator Facility (en) Thomas Jefferson National Accelerator Facility (de) Thomas Jefferson National Accelerator Facility (fr) CEBAF (it) Лаборатория Джефферсона (ru) 托马斯·杰斐逊国家加速器装置 (zh) |
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