Status and Integration of the Spectrometer Solenoid Magnets

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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

Spectrometer

Solenoid 1

Spectrometer

Solenoid 2

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


HT
C

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

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

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 Links

Near complete

Complete

On order

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

Status
&

Integration of the Spectrometer Solenoids

Page
7

Steve Virostek
-

-

-

Lawrence Berkeley National Laboratory

Magnet #1 Coil Winding Progress

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

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

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

Status
&

Integration of the Spectrometer Solenoids

Page
11

Steve Virostek
-

-

-

Lawrence Berkeley National Laboratory

Updated Schedule Summary

Status
&

Integration of the Spectrometer Solenoids

Page
12

Steve Virostek
-

-

-

Lawrence Berkeley National Laboratory

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 1
st

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 Plate

Cooler 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 Tank

ID = ~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 m
2
)

Gas Fill Tube

T

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

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

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?

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

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

, 景rced a楲 coo汥d, rack mnt.


60 A Power Supplies


Lake Shore Cryotronics (4 ea tot.)


50
-
60 Hz AC: 0.3 kW @ 208 V, 3

, 景rced a楲 coo汥d, rack mnt.


Vacuum: 10
-
3

torr @ startup thru a 25 mm flanged port


Liquid cryogens: 600 liters LN
2
, 1000 liters LHe (x2)


Instrumentation monitoring requirements


Various voltages, temperature, He level, heaters, pressure, vac.

Status
&

Integration of the Spectrometer Solenoids

Page
19

Steve Virostek
-

-

-

Lawrence Berkeley National Laboratory


Cryocooler Compressor


Dimensions:



61x58x97 (LxWxH, cm)



On ~7 cm


睨wels


Weight:



223 kg


He flex line length:



20 meters


Lifting eyes:



4 ea on top (one/corner)

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)

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, HT
C

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 1
st

magnet by Nov 07


Second magnet to follow 3 months later

Summary