status and integration of the spectrometer solenoid magnets steve virostek lawrence berkeley...
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Status and Integration of the Spectrometer Solenoid
Magnets
Steve VirostekLawrence Berkeley National Lab
MICE CM18 @ RAL June 15, 2007
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
MICE Cooling Channel Layout
SpectrometerSolenoid 1
SpectrometerSolenoid 2
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Spectrometer Solenoid Fabrication Update
•1st magnet coil winding to be done end of June
•Second coil former ready for winding upon completion of first magnet coils
•Winding of fiberglass cold mass support bands complete – associated hardware nearly complete
•Four cryocoolers now on hand at Wang NMR
•HTC leads and magnet instrumentation on hand
•Power supplies being ordered this week (UCR)
•P.O. placed with Wang for cryocooler testing
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Passive Quench Protection Space
Center Coil
Match Coil 1
End Coil 1
Match Coil 2
Coil Cover
LHe Space
490 mm
690 mm
2544 mm
Coil Spacer
Spectrometer Solenoid Cold Mass
End Coil 2
Complete
Complete
Start next week
Complete
Done this week
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
300 K Support End
60 K Support Intercept
Support Bands
4 K Support End
Cold Mass Covers
Cold Mass with 50 Ton Support System
Support LinksNear complete
Complete
On order
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Magnet #1 Coil Winding Progress
Completed Match 2 coil
Winding of Match 1 coil
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Magnet #1 Coil Winding Progress
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Cold Mass Support Fiberglass Bands
•All 32 pairs of fiberglass cold mass support bands have been machine wound, oven cured and cut to the finished width
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Cold Mass Support Assembly
•Cold mass support band links, pins and bushings are being fabricated and are close to completion
•Design load proof testing of the 16 cold mass support assemblies will take place early next month
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Other Related Hardware
2nd magnet coil winding form leak checked & ready to wind
Material for cold mass supp’t vacuum vessel extensions
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Updated Schedule Summary
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Cryocooler Performance MeasurementPurpose:
•Measure PT-415 cooler performance from 2.5 K to 22 K
•Confirm drop-in mode operation and measure heat leak
•Demonstrate that the PT-415 cooler will liquefy helium
•Check the convection currents’ role in intercepting heat
Plan:
•Measure stage temps vs heat load (in vacuum & He gas)
•Assess the thermal resistance of the 1st stage taper joint
•Operate the system with the helium at 3.8, 4.2 & 4.6 K
•Measure the liquefaction of helium at 4.3 K
Cryocooler Experiment Schematic
Cooler Ballast Tank
Valve Motor
Rotary Valve
Cryostat Top PlateCooler Top Plate
Drop-in Seal
Cooler Enclosure Tube
Wall t = ~0.38 mm
Cooler Ist Stage w/ Taper
Pulse Tube
Regenerator Tube
He Gas
Radiation Shield
Liquid Level Gauge Tube
Safety Relief Tube
Liquefaction TankID = ~125 mm Length ~150 mm Wall t = ~1 mm End t = ~6.4 mm Volume = ~1.8 liters
40 - 60 K Shield
Vacuum Vessel
P
Q
T
T
Q
T
T
T
T
Q
T
Q
Condenser (A = 0.042 m2)
Gas Fill TubeT
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Integration and Installation Topics
•Design of module base connection to rails and module lifting features added to drawings and submitted to Wang
•Transfer thru MICE hall door verified
•Flange sealing concept/design integrated
•Utility requirements for operation
•Iron shield final design & fab plan ongoing
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Module Mounting Provision
Six mounting plates added to the support stand base for installation on rails
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Module Lifting Provision
Four cutouts added to the support stand side walls for lifting straps
Open issue: will a lifting fixture be required?
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Spectrometer Solenoid-AFC Module Joint
1372 mm ID bellows
AFC flange
Spectrometer solenoid flange
36 bolts on a
1470 mm dia
O-ring groove
Metal seal groove
56 mm
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Magnet Utility Requirements
•Cryomech Model PT-415 cryocoolers (4 or 6 each total)
•50 Hz AC: 10.5 kW @ 200/220 or 380/420 V, 3 phase•Cooling: minimum 3 gpm of water @ 80ºF max
•300 A Power Supplies – American Magnetics (3 ea total)
•50-60 Hz AC: 3.5 kW @ 208 V, 3, forced air cooled, rack mnt.
•60 A Power Supplies – Lake Shore Cryotronics (4 ea tot.)
•50-60 Hz AC: 0.3 kW @ 208 V, 3, forced air cooled, rack mnt.
•Vacuum: 10-3 torr @ startup thru a 25 mm flanged port
•Liquid cryogens: 600 liters LN2, 1000 liters LHe (x2)
•Instrumentation monitoring requirements•Various voltages, temperature, He level, heaters, pressure, vac.
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Cryocooler Compressor
•Dimensions:61x58x97 (LxWxH,
cm)On ~7 cm wheels
•Weight:223 kg
•He flex line length:20 meters
•Lifting eyes:4 ea on top
(one/corner)
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
Spectrometer Solenoid Iron Shields
•Overall iron shield dimensions have now been established
•Final design and fabrication drawings to be completed soon
•Design will be integrated with requirements of TOF shield (based on discussions this week)
•Shields likely to be fabricated locally to sites (FNAL, RAL)
•1 shield needed @ FNAL and 2 needed @ RAL (tentative)
Status & Integration of the Spectrometer Solenoids
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Steve Virostek - - - Lawrence Berkeley National Laboratory
•1st magnet coil winding nearly complete
•Second coil former ready for winding
•Cold mass support bands complete
•Four cryocoolers, HTC leads and magnet instrumentation now on hand at Wang NMR
•Power supplies to be ordered this week (UCR)
•P.O. placed with Wang for cryocooler testing
•Vendor to complete 1st magnet by Nov 07
•Second magnet to follow 3 months later
Summary