ESA/NASA astronaut Christer Fuglesang visits the ATLAS cavern

14th June 2007 – On 14 June, 2007, ESA/NASA astronaut Christer Fuglesang visited the ATLAS cavern. A former CERN fellow working on ATLAS, Christer went on to become the first Swedish astronaut and participated in the STS-116 Space Shuttle mission to the International Space Station last December.

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The complex and spectacular lowering into the cavern of the huge end-cap toroid magnet on side A

13th June 2007 – On 13 June 2007 the first of two giant toroid magnet end-caps was lowered into the ATLAS cavern on the A side. This complex and spectacular operation was completely successful.

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Triggering and measuring bent cosmic muon tracks with the muon spectrometer barrel for the first time

22nd December 2006 – Data have recently been collected with the toroidal magnetic field will provide for the first time the measurement of the cosmic ray muons' momenta in the ATLAS experiment and allow studies on trigger optimization, chamber calibration, chamber alignment and magnetic field maps. More than one million events were acquired. They are now being analyzed by enthusiastic members of the collaboration.

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Development of the ATLAS control room

15th December 2006 – The ATLAS control room will become the brain of the detector operations. At the moment six of the final fifteen stations are already in place.

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The ATLAS Detector safety system

15th December 2006 – The ATLAS Detector safety system (DSS) has the mandate to put the detector in a safe state in case an abnormal situation arises which could be potentially dangerous for the detector. It covers the CERN alarm severity levels 1 and 2, which address serious risks for the equipment.

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First combined SCT/TRT end-cap cosmic rays seen in building SR1

9th December 2006 – Following the successful combined SCT/TRT barrel test in the Spring 2006, a similar combined SCT/TRT endcap test is currently being performed in the SR1 building on the ATLAS experimental site at CERN. One quadrant of the SCT and two sectors of the TRT have been cabled up and are used in this test. The data taking and combined testing is expected to last until December 11th.

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The pixels system: last but not late!

4th December 2006 – After almost 15 years of R&D and prototyping, the ATLAS pixel detector is finally almost ready for installation in ATLAS, and its first rendez-vous with colliding beams!

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