LAST TWEETS

SITE MAP

WARMING UP

May 12th, 2010

After coming back home in the integration room building 867 at CERN, AMS will undergo magnets replacement. The vacuum chamber which contains the cryostat which maintains the magnet near the absolute zero is now warming up. Initially about 1,000 litres of superfluid Helium had to be removed. Very carefully, the SF Helium was warmed to 4 K and then pumped out while evaporating. During this step it is important to check that cryostat’s different parts have a temperature difference not exceeding

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AMS LAUNCH POSTPONED

April 27th, 2010

It’s official. Following the decision to switch the AMS magnets, NASA has determined to move the STS-134 mission launch to mid November from the previous date of July 29th. The STS-133 flight, which was the last one to be manifested, will keep its September 16th launch date. The STS134 will then be the last shuttle mission, unless a new mission, STS-135, will be added to the manifest in 2011. Stay tuned!

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AMS BACK TO CERN

April 26th, 2010

The first four trucks transporting the AMS-02 payload and its supporting hardware left ESTEC on April 22nd and arrived at CERN on April 26th. The fifth one, carrying the supporting gondola, is following. The detector is now back in the integration room, in building 867 on the CERN Prévessin side, where it will undergo a system test before starting the integration activities to replace the superconducting magnet with the permanent magnet.

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AMS-NASA MEETING RESULTS

April 18th, 2010

Last Friday, the results of the EMC and TV test of AMS were discussed during the Technical Interchange Meeting. All detector subsystem performed well during the various phases of the TVT. During the TV test the Superconducting Magnet endurance has been determined to be about 20 months. Since ISS operations will be extended from 2015 to 2020, it appears that the Superconducting Magnet could only operate for a small fraction of an extended 10 years data taking of AMS-02 on the ISS.

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