Transcript Spectrometer Solenoid Report and Coupling Coil Update Michael S. Zisman MICE Operations Manager Center for Beam Physics Lawrence Berkeley National Laboratory MICO Meeting March 16, 2009

Spectrometer Solenoid Report
and
Coupling Coil Update
Michael S. Zisman
MICE Operations Manager
Center for Beam Physics
Lawrence Berkeley National Laboratory
MICO Meeting
March 16, 2009
Status (1)
• Making slow but steady progress on first Spectrometer
Solenoid (“Magnet 2”)
— fabrication work on turret completed
o welding radiation shield and LN2 reservoir connections done
o wrapping in MLI
o welding outer vacuum covers
— already done
o cold mass leak checked
o condenser sleeves and magnet leads completed
— to do
o complete instrumentation feedthroughs
o complete fill/vent connections
o add weld preps to end plates (under way; weld rings already in place in
vacuum vessel)
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Solenoid Report-Zisman
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Status (2)
• Expect final assembly of radiation shield and vacuum
vessel completed this week
— leak check next week (week of March 23)
— first cool-down expected week of March 30
o keep your fingers crossed!
• Other news
— tried tracker go-no-go gauge in Magnet 1 (the earlier one)
o bore was out of magnet but still welded to patch panel and plate
– fit fine! (see photo later)
— test will be repeated in Magnet 2 this week after warm bore installed
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Magnet turret inner components wrapped in MLI
Magnet power leads at top of turret
Weld ring in place for vacuum vessel end plate (patch panel end)
Welding of radiation shield and LN2 reservoir connections
Tracker ‘go-no go’ gage in warm bore of Magnet #1
Coupling Coil Update
• Visited likely vendor for magnet fabrication
— Qihuan Mechanical and Electronic Engineering Corporation (QMEEC)
o located in Beijing
— Derun Li, Steve Virostek, MZ, Li Wang and ShiXian Zheng were there
• Company statistics
— 29 employees; 2200 m2 floor space
— 20 years experience with superconducting magnets
o MRI magnets
o BEPC-II detector magnet (3 m diameter, 4 m long)
o completing MRI magnet of their own design now (see photos)
• Impressions
— quite favorable; they are interested and knowledgeable
o but, we still want Li Wang to manage the work!
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Coil winding form parts at QMEEC ready for welding
High bay at QMEEC showing magnet assembly area
Coil array for 1.5T MRI magnet nearing completion at QMEEC
Iron vacuum vessel for 1.5T MRI
Coil winding facility at QMEEC
Aluminum weld samples for coupling coil cooling lines and cold mass cover plates
Test Coil at ICST
• Close to being able to test the “long coil” in Harbin
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