Search This Blog

Saturday, August 16, 2008

LHC synchronization test successful

LHC synchronization test successfulLHC synchronization test successful24hoursnews.
11/08/2008.
The synchronization of the LHC's clockwise beam transfer system and the rest of CERN's accelerator chain was successfully achieved last weekend. Tests began on Friday 8 August when a single bunch of a few particles was taken down the transfer line from the SPS accelerator to the LHC. After a period of optimization, one bunch was kicked up from the transfer line into the LHC beam pipe and steered about 3 kilometres around the LHC itself on the first attempt. On Saturday, the test was repeated several times to optimize the transfer before the operations group handed the machine back for hardware commissioning to resume on Sunday. The anti-clockwise synchronization systems will be tested over the weekend of 22 August.
Picture:http://lhc-injection-test.web.cern.ch/lhc-injection-test/
History

Start-up date announced
Imprint
08/07/2008
Subject category
Breaking News
Abstract
7th August 2008. CERN has announced that the first attempt to circulate the beam in the LHC will be made on the 10th September. This news comes as the cool down phase of commissioning the accelerator reaches a successful conclusion.
The next phase is the synchronization of the LHC with the SPS accelerator, the last link in the LHC’s injector chain. A first synchronization test is scheduled for the 9th August, for the clockwise circulating beam, with the second to follow over the coming weeks.
Once stable circulating beams have been established in September they will be brought to collision, and the final step will be to commission the LHC’s acceleration system to boost the energy to 5 TeV, the target energy for 2008.
“We’re finishing a marathon with a sprint”, said LHC project leader Lyn Evans. “It’s been a long haul, and we’re all eager to get the LHC research programme underway.”
For more information, please see the recent press release at:http://press.web.cern.ch/press/PressReleases/Releases2008/PR06.08E.html
Le 7 août 2008, le CERN a annoncé que le premier essai de mise en circulation des faisceaux aura lieu le 10 septembre. La nouvelle est annoncée alors que la phase de refroidissement du nouvel accélérateur de particules arrive à son terme.
La prochaine étape est la synchronisation du LHC avec l’accélérateur SPS, qui forme le dernier maillon de la chaîne d’injection dans le LHC. Un premier essai de synchronisation est prévu le 9 août pour le faisceau circulant en sens horaire dans le LHC ; le deuxième aura lieu dans les semaines suivantes.
Une fois la circulation de faisceaux stables établie, les faisceaux seront mis en collision. La dernière étape consistera à mettre en service le système d’accélération du LHC pour atteindre 5TeV, qui est l’énergie de faisceau prévue pour 2008.
« Nous achevons un marathon sur un sprint, a déclaré Lyn Evans, chef du projet LHC. La course a été longue, et nous sommes tous impatients de commencer le programme de recherche du LHC. »
Pour tout renseignement complémentaire, veuillez consulter le communiqué de presse à l’adresse suivante:http://press.web.cern.ch/press/PressReleases/Releases2008/PR06.08F.html

No comments:

Find here

Home II Large Hadron Cillider News