e906 spectrometer upgrade overview paul e. reimer magnet concept design estimates (money & time)
TRANSCRIPT
E906 Spectrometer Upgrade Overview
Paul E. Reimer
Magnet Concept
Design
Estimates (Money & Time)
211 December 2006 Paul Reimer E906 Sepctrometer Upgrade Overview
Magnet Concept
Use pieces from existing (but dismantled) SM12 Magnet– This was the large dipole used by E866 and predecessors
Design coils to minimize the need to cut existing iron Decrease nonBend aperture
– to match downstream acceptance– Save on Amp-Turns
Tapered pole pieces
Copper Beam dump (either modified from E866/SM12 or new)
Graded hadron absorber within aperture of magnet (Copper, Carbon, Polyethylene)
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66”
198”
50’ (9 blocks long)
2£17”
SM12 Removal
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M1 Magnet
New coils Reuse whole pieces of SM12 magnet yoke (1/3 or total SM12 yoke) Beam dump either modified to fit or new (from Fermilab) Coil Design Team
– Jack Jagger—Engineering (PHY-STA)
– Ken Thompson—Field, power calculations, etc (APS)
– Tom O’Connor and Kevin Bailey—design and drafting (PHY)
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M1 Magnet
Parameter Parameter
Length 189 in Cooling Water
Width (Vert. Bend)
95 in Temp Rise 25^\circ C
Height 198 in Flow rate 90 g/min
Aperture Weight
Bend 48 in Pole Inserts
9.5 t
Non-Bend 26 in Coils 19 t
Current 2,400 A Yoke 420 t
Voltage 240 V Total 450 t
Power 0.58 MW
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Budgetary Estimates: Aluminum conductor
Conductor Properties– Al 1350 Alloy– 1.6 £ 1.6 inch – 0.700 inch diameter hole for cooling
Estimate From Alconex, Fort Wayne, IN– Will vary with base metal price– Investigating additional possible
vendors
Item Cost
Base Metal ($1.25/lb) $59,400
Fabrication $186,700
Testing $13,700
Misc. (die, ship, etc.) $7,500
Total $267,300
× 1.2 (contingency)
× 1.1 (Overhead)
× 1.03 (inflation) $363,000
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Budgetary Estimate: Coil Fabrication
Contacted 5 possible vendors in Fall 2004 for budgetary estimates based on preliminary designs—4 vendors responded by January 2005
Revisited estimates with 3 of 4 vendors for this review (Oct-Nov 2006)
Conductor Tooling and setup
Coil Fabr. Ship. Total
Everson Tesla
Nazareth, PA
Included $160k $703k $7k $870k
Sigma Phi
France
$267k
(our est.)530 euro × 1.30 $/euro
$689
$20k
(our est.)
$976k
Alpha Magnetics
Hayward, CA
$267k
(our est.)
$74k $429k $9k $779k
For budget, estimate is based on Sigma Phi total, but will use lowest bidder in which there is confidence
× 1.2 (contingency) × 1.1 (Overhead) × 1.03 (inflation)
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M1 Magnet Coil Fabrication Budget
Cost dominated by cost of conductor and coil ($1.3M of $1.6M)
Tab. III of review document
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Coils: Fabrication time
Schedule based on longest lead-time vendor: – Sigma Phi: 10 Months with conductor available 4 months before Sigma Phi: 10 Months with conductor available 4 months before
deliverydelivery– Everson Tesla: 18-22 week (5 months)– Alpha Magnetics: no estimate
Requested Budget—purchase coils over two years:– FY2007:
• Bid and contract for coils• Purchase tooling
– FY2008 (starting in Jan 2008)—this is delay is the critical path itemthis is delay is the critical path item:• Purchase conductor• Fabrication of coils
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Magnet Timeline
Al Conductor delayed to FY08
Coil Fabrication delayed to FY08
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Conclusions
Design of magnet is underway Sufficiently advanced enough to obtain reasonable budgetary
estimates on coil fabrication from vendors Both budget and time line are based on conservative estimates