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Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

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Page 1: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status and Integration of the Spectrometer Solenoid

Magnets

Steve VirostekLawrence Berkeley National Lab

MICE CM18 @ RAL June 15, 2007

Page 2: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 2

Steve Virostek - - - Lawrence Berkeley National Laboratory

MICE Cooling Channel Layout

SpectrometerSolenoid 1

SpectrometerSolenoid 2

Page 3: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 3

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

Page 4: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 4

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

Page 5: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 5

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

Page 6: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 6

Steve Virostek - - - Lawrence Berkeley National Laboratory

Magnet #1 Coil Winding Progress

Completed Match 2 coil

Winding of Match 1 coil

Page 7: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 7

Steve Virostek - - - Lawrence Berkeley National Laboratory

Magnet #1 Coil Winding Progress

Page 8: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 8

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

Page 9: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 9

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

Page 10: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 10

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

Page 11: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 11

Steve Virostek - - - Lawrence Berkeley National Laboratory

Updated Schedule Summary

Page 12: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 12

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

Page 13: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

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

Page 14: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 14

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

Page 15: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 15

Steve Virostek - - - Lawrence Berkeley National Laboratory

Module Mounting Provision

Six mounting plates added to the support stand base for installation on rails

Page 16: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 16

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?

Page 17: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 17

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

Page 18: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 18

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.

Page 19: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 19

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)

Page 20: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 20

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)

Page 21: Status and Integration of the Spectrometer Solenoid Magnets Steve Virostek Lawrence Berkeley National Lab MICE CM18 @ RAL June 15, 2007

Status & Integration of the Spectrometer Solenoids

Page 21

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