E906 Spectrometer Upgrade Overview

1
E906 Spectrometer Upgrade Overview

• Paul E. Reimer
• Magnet Concept
• Design
• Estimates (Money Time)

2
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)

3
SM12 Removal
4
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 JaggerEngineering (PHY-STA)
• Ken ThompsonField, power calculations, etc (APS)
• Tom OConnor and Kevin Baileydesign and drafting
  (PHY)

5
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
6
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
7
Budgetary Estimate Coil Fabrication

• Contacted 5 possible vendors in Fall 2004 for
  budgetary estimates based on preliminary
  designs4 vendors responded by January 2005
• Revisited estimates with 3 of 4 vendors for this
  review (Oct-Nov 2006)

Conductor Tooling and setup Tooling and setup Coil Fabr. Ship. Total
Everson Tesla Nazareth, PA Included 160k 160k 703k 7k 870k
Sigma Phi France 267k (our est.) 530 euro 1.30 /euro 689 530 euro 1.30 /euro 689 530 euro 1.30 /euro 689 20k (our est.) 976k
Alpha Magnetics Hayward, CA 267k (our est.) 74k 429k 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)

8
M1 Magnet Coil Fabrication Budget

• Tab. III of review document

• Cost dominated by cost of conductor and coil
  (1.3M of 1.6M)

9
Coils Fabrication time

• Schedule based on longest lead-time vendor
• Sigma Phi 10 Months with conductor available 4
  months before delivery
• Everson Tesla 18-22 week (5 months)
• Alpha Magnetics no estimate
• Requested Budgetpurchase coils over two years
• FY2007
• Bid and contract for coils
• Purchase tooling
• FY2008 (starting in Jan 2008)this is delay is
  the critical path item
• Purchase conductor
• Fabrication of coils

10
Magnet Timeline
Al Conductor delayed to FY08
Coil Fabrication delayed to FY08
11
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