GlueX Solenoid

Recent progress and Coil cold tests

Paul Brindza

September 9, 2004

GlueX Detector and Solenoid

Solenoid showing new stand and Iron yoke fillers

GlueX Solenoid- Properties

• Max central field 25 KG

• Length 195 Inches

• Clear bore 73 Inches

• Weight of yoke 226 Tons

• Weight of Coils ~ 80 Tons

• Max current 1800 Amps

• Stored Energy 36 Mega Joules

GlueX Solenoid Recent Progress

• Coils #1 and # 2 are now complete!

• Refurbishment activities are complete and the coils are being prepped for storage and shipment to JLAB.

• Coils have been cold tested three times.

• Business Preparations for Coil 3 and 4 R&R are underway, expect start after October.

GlueX Solenoid Recent Progress

• Major new items in coils 1 and 2 include• Six new Strain Gauges on coil supports to

replace the mostly broken originals.• Eight new PT-102 Platinum Resistance

Thermometers on shield to replace original Thermalcouples ( still working)

• New Aluminized Mylar Multi Layer Insulation on Shields and coil of #2 cryostat

New MLI Insulation on Coil #2 Helium Vessel

GlueX Solenoid Recent Progress

• New Internal Conflat Flange Cryogenic connections on all four coils.8 per coil. These replace the original cut and weld joining technique.

• New 18 Inch vacuum bellows on coils 1,2 &4, Coil 3 TBD. Originals failed during first vacuum tests due to corrosion.

• New pump out flange on Coil #4.

GlueX Solenoid Recent Progress

• Coil #2 Leak in Helium Vessel near seal weld found and fixed.

• Coil #1 Shield leak found and fixed in supply pipe.

• Coil #2 piping error found and fixed.• Two thirds of the shield in Coil #2 was

isolated ie. non functional due to inlet and outlets found connected together.

GlueX Solenoid Recent Progress

• Coil #2 showed a 2 hour leak response during the final Helium Mass Spec. leak test indicating a possible 5 x 10 ^-8 torr-liter/sec leak in the shield.

• Coil #2 pressure test at 100 PSIG OK.• Coil #1 passed its Helium Mass Spec. leak Test

but failed its pressure test at ~30 PSIG!• Coil #1 new leak was traced to corrosion in a LN2

supply line. Corrosion was confirmed at ODU.• Coil #1 was repaired by replacing the pipe and

retested.

Pressure Test of LN2 Shield # 2

0.0E+00

5.0E-09

1.0E-08

1.5E-08

2.0E-08

2.5E-08

3.0E-08

3.5E-08

4.0E-08

4.5E-08

5.0E-08

2 8 14 20 29 66 93 246 281 298

MINUTES

TL

/s 22-Jun

23-Jun

New LN2 connection on Coil #1Corrosion leak was near here.

GlueX Solenoid Recent Progress

• Due to the failure of the Coil #1 shield at low pressure during pressure testing, a decision was reached to do a cold test of coils 1 and 2 shields with LN2.

• Helium Mass spec. leak tests would be performed before , while cold and after warming.

• Test sequence repeated three times for each coil.

Coil #1 3rd COOLDOWN

60

110

160

210

260

310

10:30 11:30 12:30 13:30 14:30 15:30

TIME

KE

LV

IN

#1 int

#2 int

#1 OD

#2 OD

#1 ID

#2 ID

LN fill

LN Vent

Coil#1 3rd Cooldown - Pressure

0.00E+00

5.00E-06

1.00E-05

1.50E-05

2.00E-05

2.50E-05

3.00E-05

10:00 11:00 12:00 13:00 14:00 15:00 16:00

Time

Pre

ss

ure

To

rr

Coil, Press

Coil #2 - 2nd Cooldown

60

90

120

150

180

210

240

270

300

7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00

time

Deg

rees

Kel

vin

#1 int

#2 int

#1 OD

#2 OD

#1 ID

#2 ID

LN fill

LN Vent

Coil #2 - second cooldown Pressure

0.00E+00

5.00E-06

1.00E-05

1.50E-05

2.00E-05

2.50E-05

3.00E-05

3.50E-05

4.00E-05

8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00

Time

Vac

uu

m T

orr

press

GlueX Solenoid Recent Progress

• Coils one and two passed all cold tests with no indication of leaks on a Helium Mass Spec. Leak detector with typical sensitivity of ~ 7 x 10^-10 torr-liter/sec!

• Coils one and two passed pressure tests at 100 PSIG!

• New instrumentation works Too!• This engineer sleeps thru the night again!

Cold test gear and Temp. readout

Robin Strain starts the LN2 Coil 2

Bill Losowski and Leak Detector

Lead Tech Jeff Self, Suzie and Buckwheat

IUCF management nods its approval

GlueX Solenoid-Conclusions

• GlueX has two really good coils now!

• Coils 3 and 4 rework to be complete in FY 2005.

• JLAB Test Lab Space for Solenoid assembly and test secured and available for occupancy in January 2005.

GlueX Solenoid-Cost and Schedule

• Detailed schedule with resources to complete solenoid thru installation.

• Time phased cost to complete installation in 2009 with a yearly expenditure of ~300K$!

• Significant limitation is manpower availability.• Techs for solenoid assembly and test , Mechanical

designer for new solenoid components.• Controls software seems OK.

1 SOL_OUTL.TLP Aug/20/03 Oct/01/09 $1,841,000.002 Coil refurbishment Aug/20/03 Jun/21/05 $370,000.003 Coil setup Sep/08/04 Dec/13/04 $0.00

4 Test and repair coils Aug/20/03 Jan/02/04 $110,000.00

5 Refurbish Coils 1 &2 Jan/02/04 Jul/06/04 $120,000.00

6 Ship Coils 1&2 to JLAB Dec/01/04 Dec/07/04 $10,000.00

7 Ship Coils 3&4 to JLAB Jun/15/05 Jun/21/05 $10,000.00

8 Refurbish Coils 3&4 Dec/10/04 Jun/14/05 $120,000.00

9 Single coil setup Jan/25/05 Jan/08/08 $915,000.0010 Yoke work Jun/19/07 Jun/13/08 $375,000.0011 Installation Jul/03/08 Oct/01/09 $181,000.00

Row# Task Name StartQ2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2

2003 2004 2005 2006 2007 2008 2009 2010

GlueX Solenoid – Cost summary

• Cost to move from LANL 368 K$

• Cost of New DC system 132 K$

• Cost of refurbishment to date 297 K$ No JLAB salaries included so far!

• Cost to complete refurbishment 1467 K$ This includes cold testing in Test Lab.

• Cost to Install in Hall D 175 K$