[Jlab-seminars] Special Seminar Announcement - Please Note Day & Time

[Luci Collins]

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*_SPECIAL SEMINAR_*

 

* "THE ATLAS SUPERCONDUCTING MAGNET SYSTEM AT THE LHC, FIRST YEARS OF 
OPERATION AND OUTLOOK TO FUTURE DETECTORS"*

 

*H.H.J. ten Kate*

*ATLAS Magnet Project Leader, CERN*

 

*_ABSTRACT_*

The superconducting magnet system of the ATLAS Detector at the Large 
Hadron Collider at CERN has four magnets, a Barrel Toroid, two End-Cap 
Toroids and a Central Solenoid. It provides the magnetic field for the 
muon- and inner detectors, respectively.

The huge Barrel Toroid with outer dimensions of 25 m length and 20 m 
diameter is an assembly of eight racetrack coils. The coils are would 
with an aluminum stabilized NbTi conductor and operate at 20.5 kA and 
3.9 T peak magnetic field in the windings. The coils, in total 370 tons 
of cold mass, are conduction cooled at 4.8 K by circulating forced flow 
helium in cooling tubes attached to the cold mass. The two End-Cap 
Toroids are smaller sized, still 11 m in diameter and 5 m in height. The 
Central Solenoid has dimensions of 2.4 m diameter and 5.7 m length. The 
system stored energy is 1.6 GJ.

After the successful on-surface tests the magnets were installed in the 
ATLAS cavern 100 m underground. The Magnets were successfully charged to 
full field and since Sep 2009 we are in running and data taking condition.

Test results of this complex and unique magnet system and some of the 
lessons learnt are reported. Finally an outlook to the next generation 
of magnets for future detectors is presented.

 

*Thurs., October 28, 2010*

*11:00 AM*

*CEBAF Center AUD.*

*Cookies & Coffee at 10:45 AM*


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*Please Note Special Day and Time*_


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