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Status of the Large Hadron Collider Lyndon R. Evans Scientific Policy Committee CERN, 15 March 2004. Cable 1. Cable 2. Magnets. Dipoles. Dipoles. Cryodipoles. Quadrupoles. MSCB. QRL Problems.
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Status of the Large Hadron Collider Lyndon R. Evans Scientific Policy Committee CERN, 15 March 2004
QRL Problems • Conflicts between main contractor and installation subcontractor have caused many delays and finally CERN was informed of a change of subcontractor in January. Overall delay is now 8 months. • The contractor has produced a new planning to recover the delays but this compresses the time for installation and testing. • A new installation planning is being optimised to recover the delays. This is based on installation of 3 octants simultaneously.
Planning • The contract for tunnel installation has not yet been signed. We will need approval from FC to increase the volume of this contract by about 30% (3 MCHF). Since we must sign before June, we need approval of FC chair, with a justification in June 2004 FC. • We are now re-planning the commissioning on this very compressed timescale and which requires experienced CERN staff. We are evaluating the additional resources we need and the means to procure them. • We remain fully committed to providing the detectors with a first run in 2007.