Heute vor 60 Jahren wurde in Genf die Europäische Organisation für Kernforschung, CERN, eröffnet. Ihr Ziel ist die Grundlagenforschung im Bereich der Nuklearphysik. Außerdem sollen Bau und Betrieb von Großbeschleunigern zur Erforschung der elementaren Bausteine der Materie sowie ihre Wechselwirkungen untersucht werden.
Das CERN-Forschungszentrum ist mittlerweile das größte seiner Art. An den Projekten des Instituts sind rund 5000 Gastforscher aus mehr als 70 Ländern beteiligt. Seine 3000 Mitarbeiter setzen sich aus Wissenschaftlern, Technikern und Handwerkern zusammen. Aufgrund der langjährigen wissenschaftlichen Führungsposition wird heute mehr als die Hälfte der weltweiten Forschung auf dem Gebiet der Teilchenphysik am CERN durchgeführt.
(Quelle: Kalenderblatt.de)
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CERN NEWS: Higgs boson- LHC Experiments 7-24-13
[7:53]
Veröffentlicht am 24.07.2013
(See Links Below)
What is the Higgs boson? John Ellis,theoretical physicist, answers the question "What is the Higgs boson?" in preparation for the press conference following the seminar on LHC 2012 results on the Higgs boson search, due on July 4 2012 at CERN. For more details: http://cern.ch/press/PressReleases/Re...
Posted July 17, 2013-LHC experiments prepare for summer conferences
Rumors about imminent results on the Higgs boson from the LHC experiments are appearing in blogs, social media and newspapers all over the world. Meanwhile, thousands of physicists are carefully analyzing the data, looking not only for the Higgs but for many other new phenomena.
http://cern.ch/press/PressReleases/Re...
For UPDATES:
http://home.web.cern.ch/about/updates......
The Large Hadron Collider (LHC) is the world's largest and most powerful particle accelerator. It first started up on 10 September 2008, and remains the latest addition to CERN's accelerator complex. The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles along the way.
Inside the accelerator, two high-energy particle beams travel at close to the speed of light before they are made to collide. The beams travel in opposite directions in separate beam pipes -- two tubes kept at ultrahigh vacuum. They are guided around the accelerator ring by a strong magnetic field maintained by superconducting electromagnets. The electromagnets are built from coils of special electric cable that operates in a superconducting state, efficiently conducting electricity without resistance or loss of energy. This requires chilling the magnets to ‑271.3°C -- a temperature colder than outer space. For this reason, much of the accelerator is connected to a distribution system of liquid helium, which cools the magnets, as well as to other supply services.
Thousands of magnets of different varieties and sizes are used to direct the beams around the accelerator. These include 1232 dipole magnets 15 metres in length which bend the beams, and 392 quadrupole magnets, each 5--7 metres long, which focus the beams. Just prior to collision, another type of magnet is used to "squeeze" the particles closer together to increase the chances of collisions. The particles are so tiny that the task of making them collide is akin to firing two needles 10 kilometres apart with such precision that they meet halfway.
All the controls for the accelerator, its services and technical infrastructure are housed under one roof at the CERN Control Centre. From here, the beams inside the LHC are made to collide at four locations around the accelerator ring, corresponding to the positions of four particle detectors -- ATLAS, CMS, ALICE and LHC
http://home.web.cern.ch/about/acceler......
•Download The LHC Guide [PDF] for facts and figures
http://cds.cern.ch/record/1165534/fil......
FAIR USE NOTICE: This video contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding issues, etc. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes
What is the Higgs boson? John Ellis,theoretical physicist, answers the question "What is the Higgs boson?" in preparation for the press conference following the seminar on LHC 2012 results on the Higgs boson search, due on July 4 2012 at CERN. For more details: http://cern.ch/press/PressReleases/Re...
Posted July 17, 2013-LHC experiments prepare for summer conferences
Rumors about imminent results on the Higgs boson from the LHC experiments are appearing in blogs, social media and newspapers all over the world. Meanwhile, thousands of physicists are carefully analyzing the data, looking not only for the Higgs but for many other new phenomena.
http://cern.ch/press/PressReleases/Re...
For UPDATES:
http://home.web.cern.ch/about/updates......
The Large Hadron Collider (LHC) is the world's largest and most powerful particle accelerator. It first started up on 10 September 2008, and remains the latest addition to CERN's accelerator complex. The LHC consists of a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particles along the way.
Inside the accelerator, two high-energy particle beams travel at close to the speed of light before they are made to collide. The beams travel in opposite directions in separate beam pipes -- two tubes kept at ultrahigh vacuum. They are guided around the accelerator ring by a strong magnetic field maintained by superconducting electromagnets. The electromagnets are built from coils of special electric cable that operates in a superconducting state, efficiently conducting electricity without resistance or loss of energy. This requires chilling the magnets to ‑271.3°C -- a temperature colder than outer space. For this reason, much of the accelerator is connected to a distribution system of liquid helium, which cools the magnets, as well as to other supply services.
Thousands of magnets of different varieties and sizes are used to direct the beams around the accelerator. These include 1232 dipole magnets 15 metres in length which bend the beams, and 392 quadrupole magnets, each 5--7 metres long, which focus the beams. Just prior to collision, another type of magnet is used to "squeeze" the particles closer together to increase the chances of collisions. The particles are so tiny that the task of making them collide is akin to firing two needles 10 kilometres apart with such precision that they meet halfway.
All the controls for the accelerator, its services and technical infrastructure are housed under one roof at the CERN Control Centre. From here, the beams inside the LHC are made to collide at four locations around the accelerator ring, corresponding to the positions of four particle detectors -- ATLAS, CMS, ALICE and LHC
http://home.web.cern.ch/about/acceler......
•Download The LHC Guide [PDF] for facts and figures
http://cds.cern.ch/record/1165534/fil......
FAIR USE NOTICE: This video contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding issues, etc. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes
- CERN – Conseil Européen pour la Recherche Nucléaire (Zeuthen-Desy.de)
- Dem Urknall ein Stück näher (Die Welt, 30.03.2010)
Prof. Lesch zur Entdeckung des Higgs-Teilchens [4:08]
Prof. Lesch zur Entdeckung des Higgs-Teilchens [4:08]
Hochgeladen am 20.12.2011
Mehr von Prof. Harald Lesch auf: www.der-wissens-verlag.de
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