LAST TWEETS

SITE MAP

AT CERN WITH THE PERMANENT MAGNET

May 26th, 2010

After traveling for about 8 hours from Aachen, the permanent magnet arrived already mounted inside the vacuum case last Wednesday, at 8 o’clock in the morning. It was then removed from the “packaging” used to transport it from Germany. Now it rests in the clean room where it will undergo magnetic fields measurements before taking the place of the superconducting magnet that, in the meantime, has reached room temperature and pressure and is ready for the swap. A team from

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TOWARDS THE TWINS CHAMBERS SWITCHING

May 18th, 2010

Last weekend, at the Aachen RWTH I. Physikalisches Institute in Germany, the permanent magnet has been mounted inside the “flight spare” vacuum chamber. This Neodymium-Iron-Boron alloy cylinder, one meter high per one meter of diameter, has a magnetic field 3,000 times more intense than the magnetic field of Earth and is a veteran of space, since it has been flown in 1998 on the STS91 mission. Weighting 1.9 tons that become 2.9 tons once the vacuum chamber and the interface

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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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