1. Common Projects Status
ATLAS RRB-T
Common Projects Status
ATLAS RRB, 22 October 2001
Marzio Nessi

2. List of Common Projects (annex 10 MoU)
Barrel Toroid Magnet
End-cap Toroid Magnet
Solenoid
Common Magnet Infrastructure
LAr Barrel Cryostat
LAr End-cap Cryostats (2)
LAr Cryogenic Plant
Parts of Trigger, DAQ and Controls
Radiation Shielding
Parts of Experimental Infrastructure
10/22/2001
ATLAS RRB-T

3. 9m long B0 model coil achieved 20 kA, July 01
B0, short prototype coil
9m long B0 model coil achieved 20 kA, July 01
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ATLAS RRB-T

4. B0, short prototype coil Common effort of CEA, INFN-LASA and CERN :
to provide focus for the BT design to exercise all production steps
to implement in BT production
to exercise testing and to verify the design construction by CEA and LASA, test by CERN
Construction completed :
delivered to CERN in Sep 00
last minute change of stops sliding interface (May 01)
1st test campaign completed nd test campaign started on 2nd Oct 01
B0 test result :
vacuum vessel is tight (no repairs done)
cooling down in 2 wks, all test station cryogenics works
20.5 kA achieved without quench in coil, so the coil design works
cold leak in thermal shield circuit, stops sliding OK, tie rods OK
19 kA quench in coil-lead connection due to conductor movement
next campaign is in stability, propagation, losses etc.  
10/22/2001
ATLAS RRB-T

5. B0, short prototype coil Examples of impact on BT construction :
the early B0 design brought collaborative spirit and focus to the magnet lab
conductor: early qualification and testing
improved conductor cleaning
improvement to coil winding tolerances
drastic improvement to impregnation (4 month extra work!)
change of coil casing welding technique: EB->MIG
cold mass integration: bladder technology and tooling
cooling lines: less welds, line testing of whole circuits
thermal shield: less welds, Al alloy, gap between panels
tie rods: optimization: reshaping, testing
stops: redesign, new sliding surfaces
superinsulation: blanket layout and assembly
instrumentation: change of sensors, thermalization etc.
vacuum vessel assembly, use of frame
cryostat integration: increase of clearance, procedures, many details of conductor bending, avoid turnovers, cooling pipe testing and gluing
cryoring: conductor movements
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ATLAS RRB-T

6. 1st integration in Jan 02, 1st delivery to CERN in Mar 02
Barrel Toroid Magnet
Engineering & CEA, INFN-LASA,CERN
BT conductor (32 units x 1730 m) :
23 units done, on time for coil winding, not critical.
Coil Casings (8 units):
welding on CC-1 completed, machining started on 8 Oct 01
first casing delivery by 18 Dec 01, last one in Apr 03
Double Pancakes (16 units)
6 DPCs made, 5 accepted, #9 is being wound
5 m float w.r.t. coil casing, fine !
Cold mass integration :
tooling under construction, 4 Double Pancakes delivered
1st integration in Jan 02, 1st delivery to CERN in Mar 02
To CERN
10/22/2001
ATLAS RRB-T

7. Barrel Toroid Magnet Barrel cryostat during construction
First Coil casing ready for machining
10/22/2001
ATLAS RRB-T

8. Barrel Toroid Magnet (2)
Vacuum vessels (8 units) :
delivery 1st vessel by FCM in Dec 01, all steel procured. Not time critical !
Radiation shield (8 SETS) :
Contract ok! 1st delivery required by April/02. Delivery is on the critical path!
Superinsulation (5000m2) :
1st batch delivery in Mar 02
Ti-Tie rods (64 units) :
64 rods forget, 6 machined. All Ti rods will be proof loaded at Kurchatov at 77 K
8 piece delivery by Mar 02
256 Stops shield sup. :
tender completed, company selected contract under preparation, 1st bat by Apr 02
Coils
Integration inside the cryostat:
JNIR team at CERN, tooling under construction, delivery starts in Nov 01
Integration work starts in April 02
Warm support structure:
design review passed, TIS approval awaited in Oct 01
forging work shall starts in Dec 01, large scale forging by Samara, all machining by JNIR
For installation in the ATLAS Pit
10/22/2001
ATLAS RRB-T

9. End-Cap Toroid Magnet Integration inside the cryostat:
Engineering & RAL, Nikhef
ECT conductor (32 units x 820 m) :
16 units done, not critical.
Vacuum vessels (2 units) :
1st vessel ready, 2nd vessel ready by March 02
1st vessel being transported to CERN right now.arrives on 29 Oct
Cold masses (2 units)
full size dummy coil winding completed in Oct 00 at HMA
serious problem with schedule and cost increases caused by company taken over by FKI.
delivery will be late in 03 and 04, not yet a problem for installation as it is scheduled for May 05.
Supports &Tie rods (64 units) :
production has started, 1st batch delivery in Mar 02
Radiation shields (8 SETS) :
Production has started,delivery of all shields together by May 02
Superinsulation :
production starts in Sept 01, delivery in May-Aug 02
Integration inside the cryostat:
by JNIR team at CERN in Hall 191, tooling under construction, work at CERN starts in Apr 02
integration management by RAL
For installation in the ATLAS Pit
10/22/2001
ATLAS RRB-T

10. End-Cap cryostat during construction
End-Cap Toroid Magnet
End-Cap cryostat during construction
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ATLAS RRB-T

11. Magnet Infrastructure
He refrigerator & distribution:
re-use of 6 kW CERN machine, agreed contract for 2nd refrigerator system awarded.
Proximity cryogenics :
design completed by RAL, tender in Feb 02
Vacuum System :
predesign completed by RAL, implementation studied
Magnet Power System :
final design and production of common system by LASA
Magnet Safety and Control Systems :
CERN is defining a common system with standardized hardware, will be built and installed by CERN
tender completed, company selected
10/22/2001
ATLAS RRB-T

12. Solenoid Successful excitation test, Dec 00 {Toshiba} :
Cooling down, excitation up to 8.0 (nominal field) and 8.4 kA (+10%)
2 training quenches at both end flanges (classical)
Results accepted by ATLAS, test completed
Delivered to CERN on 3 rd Set , 2001 :
Acceptance test by KEK and Toshiba
Solenoid provisional accepted
10/22/2001
ATLAS RRB-T

13. LAr Barrel Cryostat The Barrel cryostat arrived at CERN :
Cryostat was leak-tested at CERN
A leak has been discovered on the warm bulkhead "A", in the region of the "bulge“
KHI, BNL and ATLAS agreed on the provisional acceptance with reserve on the flange A, where the source of the problem was identified
KHI and BNL will take actions for the repair to be done by the end of February
The cover can be repaired in parallel to the integration work without delay on the agreed integration schedule
Integration work has started :
Cryostat fully opened Sept. 28th
First Signal Feedthrough in place Oct. 8th
Now 8 Feedthroughs are installed, welded and leak checked
~50% of all Feedthroughs are constructed
10/22/2001
ATLAS RRB-T

14. LAr Barrel Cryostat Cryostat @ CERN Feedthrough installation
10/22/2001
ATLAS RRB-T

15. LAr End-Cap Cryostats (2)
~ 30% of Feedthroughs constructed
Assembly of Cryostat C has been completed :
An Hydraulic test was performed on Sept. 18th and failed because of an excessive deformation on the large Omega seals.
Cryostat was leak-tested
A set of modifications have been proposed and successfully implemented
New milestones:
 Pressure test: Oct. 22nd 2001
 Cold test(finished): Nov. 8th 2001
 Delivery at CERN: Dec. 3rd 2001
Cryostat A :
Delivery at CERN expected for April 3rd, 2002
10/22/2001
ATLAS RRB-T

16. End Cap cryostat C assembled at Simic
LAr End-Cap Cryostat
End Cap cryostat C assembled at Simic
10/22/2001
ATLAS RRB-T

17. LAr Cryogenics Plant External cryogenics : Proximity cryogenics :
First liquid nitrogen dewar will be delivered end of October
The 2nd dewar and the 2 liquid argon storage tanks will be delivered June 2002
Storage tanks in the pit in July 2003
Refrigerator, ordered by BNL. The commissioning is planned in January 2004
Cryogenic lines, tendering procedure in progress
Proximity cryogenics :
Expansion vessels and valve boxes contracts signed. Delivery foreseen middle of Needed for the cold tests in 2003.
Work on flexible Ar lines and transport system under progress, prototyping done.
Vacuum material delivery has started, diffusion pump already used for the barrel acceptance test.
Process control:
Agreement concerning the hardware, ready for signature. Development station already delivered.
Need to finalize choices for the software, within UNICOS; agreement for this part should be ready before end 2001.
10/22/2001
ATLAS RRB-T

18. Radiation Shielding JD shieding : JF shieding : JT shieding :
Redesign done (mech., cost)
Final design review Nov. 2001
Start procurement phase spring 2002
JF shieding :
Redesign under way (cost, noise, mech.)
Final design review Feb. 2002
Start procurement phase spring 2002
JT shieding :
New concept approved by EB
Redesign under way (cost, noise, mech.)
Final design review Apr. 2002
Start procurement phase summer 2002
10/22/2001
ATLAS RRB-T

19. Parts of Experimental Infrastructure
Feet & Rails :
PPR review done
Firm selected and qualified
Contract circulating before signature
Procurement of material by Feb 2002
External rails (trucks):
Design review done
Firm selected, possible IK from Poland
PPR in Feb 2002
Major infrastructure procurements:
Cranes (surface,underground) : contract F-420 done, on schedule
Area Cooling&Ventilation (CERN) : contract F-405 done, on schedule
Metallic structures : contract done, on schedule
10/22/2001
ATLAS RRB-T

20. 10/22/2001
ATLAS RRB-T