تجربة أطلس

مصادم الهدرونات الكبير
Large Hadron Collider
(LHC)

تجارب LHC
أطلس	A Toroidal LHC Apparatus
CMS	Compact Muon Solenoid
LHCb	LHC-beauty
ALICE	A Large Ion Collider Experiment
TOTEM	Total Cross Section, Elastic Scattering and Diffraction Dissociation
LHCf	LHC-forward
LHC preaccelerators
p و Pb	المعجلات الخطية للپروتونات (Linac 2) وLead (Linac 3)
(not marked)	Proton Synchrotron Booster
PS	Proton Synchrotron
SPS	Super Proton Synchrotron

تجربة أطلس حول المعجل النووي العملاق النووي هادرون (A Toroidal LHC ApparatuS, Aparato Toroidal ل LHC)) هو مكشاف جزيئات صمم مع خمسة تجارب أخرى (ALICE, CMS,TOTEM و LHCb) في مصادم الهدرونات الكبير.

التجربة الفيزيائية تمت ما بين الحدود الفرنسية السويسرية يوم الأربعاء 17 سبتمبر 2008. ويعتبر هذا المشروع، الذي كلف 3.76 مليار يورو، ثمرة تعاون بين البلدان الأوروبية والولايات المتحدة والهند وروسيا واليابان. ويعد المغرب البلد العربي والأفريقي الوحيد الذي شارك في هذه التجربة كما أنه ساهم في بناء مولد المجال المغناطيسي أحد مكونات الهادرون.

شعار أطلس.

أطلس TRT

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 الخلفية

ATLAS experiment detector under construction in October 2004 in its experimental pit; the current status of construction can be seen here. Note the people in the background, for comparison.

 برنامج الفيزياء

A schematic, called a Feynman diagram, of two virtual gluons from colliding LHC protons interacting to produce a hypothetical Higgs boson, a top quark, and an antitop quark. These in turn decay into a specific combination of quarks and leptons that is very unlikely to be duplicated by other processes. Collecting sufficient evidence of signals like this one may eventually allow ATLAS collaboration members to discover the Higgs boson.

 المكونات

Computer generated cut-away view of ATLAS detector showing its various components
Muon spectrometer:
     (1) Monitored Drift Tube
     (2) Thin Gap Chamber
Magnet system:
     (3) End-Cap Toroid Maget
     (4) Barrel Toroid Magnet
Inner detector:
     (5) Transition Radiation Tracker
     (6) Semiconductor Tracker
     (7) Pixel Detector
Calorimeters:
     (8) Electromagnetic Calorimeter
     (9) Hadronic Calorimeter

 الكاشف الداخلي

The ATLAS TRT central section, the outermost part of the Inner Detector, as of September 2005, assembled on the surface وتأخذ بيانات من الآشعة الكونية.

 الكالوريمترات

September 2005: the main barrel section of the ATLAS hadronic calorimeter, waiting to be moved inside the toroid magnets.

One of the sections of the extensions of the hadronic calorimeter, waiting to be inserted in late February 2006

 نظام المغناطيس

The ends of four of eight ATLAS toroid magnets, seen from the surface, about 90 metres above, in September 2005.

Part of the ATLAS, as it looked February 2007.

 المصادر

• ATLAS Technical Proposal. CERN: The Atlas Experiment. Retrieved on 2007-04-10
• ATLAS Detector and Physics Performance Technical Design Report. CERN: The Atlas Experiment. Retrieved on 2007-04-10
• N. V. Krasnikov, V. A. Matveev (1997). "Physics at LHC". Physics of Particles and Nuclei. 28 (5): 441–470. doi:10.1134/1.953049. {{cite journal}}: Unknown parameter |month= ignored (help)

 وصلات خارجية

• Official ATLAS Public Webpage at CERN (The "award winning ATLAS movie" is a very good general introduction!)
• Official ATLAS Collaboration Webpage at CERN (Lots of technical and logistical information)
• ATLAS Cavern Webcams
• ATLAS section from US/LHC Website
• PhysicsWorld article on LHC and experiments
• New York Times article on LHC and experiments
• United States Department of Energy article on ATLAS
• The Large Hadron Collider ATLAS Experiment Virtual Reality (VR) photography panoramas
• Large Hadron Collider Project Director Dr Lyn Evans CBE on the engineering behind the ATLAS experiment, Ingenia magazine, June 2008
• Atlas Experiment News and social networking
• The ATLAS Collaboration, G Aad; et al. (2008-08-14). "The ATLAS Experiment at the CERN Large Hadron Collider". Journal of Instrumentation. 3 (S08003): S08003. doi:10.1088/1748-0221/3/08/S08003. Retrieved 2008-08-26. {{cite journal}}: Explicit use of et al. in: |author= (help) (Full design documentation)
• Press release from October 2008 by EB Industries regarding the ATLAS project