ATLAS End Cap Toroids Status update since Nov 06

1
ATLAS End Cap Toroids Status(update since Nov
06)

• Herman ten Kate
• LHCC Referee meeting for ATLAS,
• 30 Jan 2007, 1645, room 40-C-101

2
ECT-A status 13 Nov 06, previous LHCC

• New AFT design accepted
• Thermal shield installation completed at both
  sides
• Stay tube shields installed
• Superinsulation installation in progress
• The closing of end plates from both sides in next
  3 weeks
• Presently on-time for starting vacuum tightness
  test before 22 Dec
• Schedule is OK for 80K test in Feb/March 07
• Installation in cavern in Apr-May

3
Status yesterday 29 Jan 07
4
ECT-A completed ready for transport

• Vessel closed 22 Dec 06
• New adjustable AFT rods implemented
• Released from cantilever
• Pumped vacuum over X-mass
• He-Leak tested and is OK
• Turret with current leads and cryogenic ports
  completed
• Top platforms installed
• Moved to center of hall, ready for pick-up by the
  transport trailer (next Monday)
• Transport on 5-6 Febr

5
End Cap Toroid cold test _at_80K

• Next is 300-80K thermal cycling test in front of
  B180, when connected to a 10kW N2/He pre-cooler
• Test lasts for 7 weeks, if OK then ready for
  point 1, toroid stored during April/May,
  transport to point 1 in 1st week June

6
ECT-C Cold mass assembly completed

• Mechanical assembly complete
• Cooling circuits welded and fully tested
• Superconductor junctions done
• Instrumentation and 6K-shields in progress and
  nearly complete
• Needs to be ready by middle of Febr to allow
  insertion in vessel
• Next step has to wait for ECT-A transport

7
Next steps

• ECT-A goes out through the door on its way to the
  80K test
• ECT-C cold mass moves to center and vessel to
  rails right side
• Open the vessel and put left end plate on
  cantilever
• Move cold mass on cantilever, open vessel right
  side
• Move vessel over cold mass on cantilever and
  start integration works on tie rods, shields,
  MLI, turret etc as done for ECT-A
• When finished by middle of May, go out for 80K
  test as well.

8
Service turret for ECT-C

• Pre-assembly of service turret (connections to
  vacuum, Helium coolant and current) in progress
  in H180
• Next is installation on top op ECT-C in
• B191 in March

9
ECT services connections in cavern
Vacuum pipes, cryogenics transfer lines,
supporting platforms and chains to be installed
10
ECT services tower, chains platforms

• Services tower
• construction
• has started
• Chains integration
• with flexible cryo-
• and vacuum lines
• in progress
• Chains supporting platform in production in H180
• Installation of platforms and chains in cavern in
  March and April, well before toroids come down

11
Conclusions

• ECT-A
• Transport to 80K test station 6 Feb confirmed
• Transport to point 1 by early June, not anymore
  on critical path
• Tower installation and connections in cavern
  Jun-July
• ECT-C
• Cold mass ready, cryostating waits for ECT-A to
  leave B191
• Cryostat integration Feb-May 07
• Transport to 80K test station by mid May 07
• 80K test in June
• Transport to point 1 by early July
• Tower installation and connections by July-Sep 07
• Common cooling down and test in Sep-Oct
• Full ECT test in Nov and full magnet system test
  with BT in Dec
• Schedule compatible with ATLAS installation
  schedule