LHCb

Updated July 2005 - input from Rolf Lindner

• LHCb's planning takes test as scheduled into account.
• Final vacuum pipe in place June 2006. Aperture 50 mm. Not fully baked out (shouldn't be a problem for single pass, low intensity beam).
• VELO : silicon trackers in place for test, planned to be installed in June 2006.
• Global commissioning - December 2006 from LHCb control room
• Additional muon detectors going in Jan 2007
• Sector test not a technical problem - purely a question of logistics
• 2007 will not be a problem at all.

Installation schedule

Nevertheless, we would like to point out the major constraints which we can identify:

· Due to the layout of LHCb, and in particular that the Vertex Locator forms part of the beam pipe, the final beam pipe has to be in place for the injection test.
· It has to be ensured that the experimental cavern at point 8 will be treated as a supervised area after the injection test and not as a controlled area.
· Likewise, it has to be ensured that no part of the beam pipe or nearby detector will receive a radiation dose that would leave either activated after the test.
· The interruption to the LHCb installation due to the injection test should not exceed three weeks.

"Under all circumstances we have to avoid tracing of equipment before we have circulating beams and therefore as well after the sector test. We can not trace all the equipment which will go in and out of the UX cavern during our commissioning phase which will end with the closing of our area in summer 2007. We might have still some temporary equipment which will leave the area after the injection test. INB implicatons on tracing from a supervised LHC area need to be established."

Rolf Lindner
Technical Coordination LHCb
 

Shielding wall will have been installed well before the test.