Wednesday, September 10, 2008

LHC Beam 2

It seems like the LHC is ready to try out Beam 2. Earlier this morning, we saw Beam 1, which goes in a clockwise direction. Beam 2 will go in a counterclockwise direction.

12:30pm: The first step is to inject the second proton beam, also at an energy of 450 GeV, into the LHC at Point 8 to LHCb.

12:32pm: A cryogenics problem in Sector 81 has delayed the injection of Beam 2. This means that there is a problem with the cooling of these large superconducting magnets. We might be done for today, unless they fix it quickly.

12:34pm: Cameras focus on the cryogenics workstation, with several people staring worriedly at the screens. I feel bad for those guys! Can you imagine cameras focused on you as you're trying to debug a problem? Lots of pressure on them right now.

12:35pm: I'm heading to lunch! I'll check back later to see if the cryogenics situation has improved.

2:35pm: Sorry for the break ... Lunch and then getting a bus card. As I walk into the CERN auditorium, the beam is at Point 5 and they are giving CMS a few events.

2:40pm: Beam 2 to Point 3! The counterclockwise beam has made it through CMS and around 2 more sectors to Point 3.

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