Transcript Status and Installation Plan for the Spectrometer Solenoid

Status and Integration of the
Spectrometer Solenoid Magnets
MICE CM18 @ RAL
June 15, 2007
Steve Virostek
Lawrence Berkeley National Lab
MICE Cooling Channel Layout
Spectrometer
Solenoid 1
Spectrometer
Solenoid 2
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 2
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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
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Spectrometer Solenoid Cold Mass
Coil Cover
End Coil 1
Complete
Passive Quench
Protection Space
690 mm
Match Coil 1
Done this week
2544 mm
End Coil 2
Start next week
490 mm
LHe Space
Coil Spacer
Center Coil
Complete
Match Coil 2
Complete
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 4
Cold Mass with 50 Ton Support System
300 K Support End
Cold Mass Covers
On order
60 K Support Intercept
Support Links
Near complete
4 K Support End
Support Bands
Complete
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 5
Magnet #1 Coil Winding Progress
Winding of Match 1 coil
Completed Match 2 coil
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 6
Magnet #1 Coil Winding Progress
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
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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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 8
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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 9
Other Related Hardware
Material for cold mass supp’t
vacuum vessel extensions
2nd magnet coil winding form
leak checked & ready to wind
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 10
Updated Schedule Summary
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 11
Cryocooler Performance Measurement
Purpose:
•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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 12
Cryocooler Experiment Schematic
Rotary Valve
Cooler Ballast Tank
Safety Relief Tube
Valve Motor
Gas Fill Tube
Cooler Top Plate
T
Cooler Ist Stage w/ Taper
Regenerator Tube
T
T
Wall
t = ~0.38
mmTube
Cooler
Enclosure
T
Q
Q
40 - 60 K Shield
T
He Gas
Condenser (A = 0.042 m2)
Cryostat Top Plate
Drop-in Seal
Radiation Shield
Pulse Tube
Liquid Level Gauge Tube
P
Vacuum Vessel
TQ
Liquefaction Tank
Q
T
T
ID = ~125 mm
Length ~150 mm
Wall t = ~1 mm
End t = ~6.4 mm
Volume = ~1.8 liters
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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 14
Module Mounting Provision
Six mounting plates added
to the support stand base
for installation on rails
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 15
Module Lifting Provision
Four cutouts added to the
support stand side walls
for lifting straps
Open issue: will a lifting fixture be required?
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 16
Spectrometer Solenoid-AFC Module Joint
AFC flange
Spectrometer
solenoid flange
36 bolts on a
1470 mm dia
56 mm
Metal seal groove
O-ring groove
1372 mm ID bellows
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 17
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.
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 18
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)
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 19
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)
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
Page 20
Summary
•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
Steve Virostek - - - Lawrence Berkeley National Laboratory
Status & Integration of the Spectrometer Solenoids
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