extraction and b eamline progress
DESCRIPTION
Extraction and b eamline progress. B.Goddard TE/ABT. Switch from TT20 to new TT26. Uses MBS magnets from CNGS TT41 Replace and move 2x TT20 quadrupoles. Switch from TT20 to new TT26. Not compatible with LAGUNA. Geometry. Updated Same target location and angles - PowerPoint PPT PresentationTRANSCRIPT
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Extraction and beamline progress
B.Goddard TE/ABT
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Switch from TT20to new TT26• Uses MBS magnets from CNGS TT41• Replace and move 2x TT20 quadrupoles
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Switch from TT20to new TT26
Not compatible with LAGUNA
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Geometry• Updated– Same target location and angles– Optimised bends using 16 available MBN magnets (6x H,
10x tilted at 15 and 30 deg)– Split bend to maximise distance from BA915 and BA940
Not compatible with LAGUNA
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Dipole bends
Aiming to minimise number of large (> 1000 A) power convertors
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Compatibility with Laguna
• SPS extraction: LSS2 changes yes, LSS1 MKP no• TT20 upgrade: yes• Switch: no (maximum 100 GeV/c)• TT26: no (maximum 100 GeV/c)
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Magnets and power convertors
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Instrumentation• Upgrades forLSS2, TT20 and new systems for TT26
defined• Need input for target and secondary beam
instrumentation
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Access system• A lot of work still needed to define concept• Also non radiation risks (electrical, decay tube
vacuum) to be considered• Risk analysis and safety file needed!
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Beam interlocking• Concept defined• User input lists being iterated
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A lot of work still needed
• Power convertor types• Power cable cross-sections• Cable types and lengths• Cooling power (full project)• Detailed layout and optics of TT26• Vacuum system element definition• Surface building space (full project)• Risk analysis and safety file (full project)• Access system definition (full project)
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Services needed before installation• Civil engineering completed;• Tunnel painting completed;• Electrical distribution installed and operating;• AUGs installed and operational;• Lighting installed and operating;• Cable trays installed and cables pulled;• Leaky feeder cables installed and operational for underground GSMs;• Ventilation completed (for personnel access at least);• All underground safety systems installed and completed
– smoke detection, fire extinguishers, safety markings, emergency lighting, …; • New access shafts, personnel and material lifts installed and operational;• Access system installed and tested, or temporary shielding in place;• New or extended auxiliary surface buildings completed and installed with all
services;
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Schedule feasibility
• Main risks are:– Infrastructure preparation
• Civil engineering, cabling, cooling, ventilation, …
– New beam instrumentation• Large aperture BPM contract to launch 2013
– New power convertors• 2 convertors needed for TT26 dipoles (2000 and 4000 A), for
which no up-to-date design yet exists
– Installation interleaved with SPS/NA operation• Work needed for end of LS1, which will involve a lot of CERN
design and workshop effort
– MANPOWER