E906 Spectrometer Upgrade Overview Paul E. Reimer Magnet Concept Design Estimates (Money & Time)

2 11 December 2006Paul 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)

3 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview 66” 198” 50’ (9 blocks long) 2£17” SM12 Removal

4 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview 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)

5 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview M1 Magnet Parameter Length189 inCooling Water Width (Vert. Bend)95 in Temp Rise25^\circ C Height198 in Flow rate90 g/min ApertureWeight Bend48 in Pole Inserts9.5 t Non-Bend26 in Coils19 t Current2,400 A Yoke420 t Voltage240 V Total450 t Power0.58 MW

6 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview 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 ItemCost 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 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview 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) ConductorTooling 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)

8 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview M1 Magnet Coil Fabrication Budget Cost dominated by cost of conductor and coil ($1.3M of $1.6M) Tab. III of review document

9 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview Coils: Fabrication time Schedule based on longest lead-time vendor: –Sigma Phi: 10 Months with conductor available 4 months before delivery –Everson Tesla: week (5 months) –Alpha Magnetics: no estimate Requested Budget—purchase coils over two years: –FY2007: Bid and contract for coils Purchase tooling this is delay is the critical path item –FY2008 (starting in Jan 2008)—this is delay is the critical path item: Purchase conductor Fabrication of coils

10 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview Magnet Timeline Al Conductor delayed to FY08 Coil Fabrication delayed to FY08

11 11 December 2006Paul Reimer E906 Sepctrometer Upgrade Overview 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