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Hall C MeetingSHMS Magnets and Support Structure
Design and Procurement Status
Paul BrindzaJanuary 26, 2009
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SHMS Magnets and Support Structure
• SHMS Spectrometer and Magnets • SC Magnet Procurement Status• SHMS Magnet Recent Progress• SHMS Support Structure• Conclusions
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SHMS
Target
Bender Q1 Q2 Q3 Dipole Detectors
Electronics RoomCryo
Transfer Line
Power Supplies
Shield House
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SHMS Q1 Quadrupole AssemblyJLAB Cold Iron Quad Design (CIQ)
SHMS Horizontal Bend DipoleWarm Iron SC “C” Magnet
SHMS Q3 Cosine 2Θ Quadrupole Assembly60 cm warm bore cryo-stable design
SHMS Cosine Θ Dipole Assembly60 cm warm bore- cryo-stable design
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Bo/Go Aperture J A/cm^2 Design
HB 3.10 T 35 x 36 28,900 “C” Type
Super Ferric
Q1 10.6 T/m 40 cm 23,430 JLAB Q1
Cold Iron
Q23 14.4 T/m 60 cm 5,800 Cosine (2Θ)
Dip 4.76 T 60 cm 5,000 Cosine (Θ)
SHMS Magnet Designs
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I (A) L (H) E (MJ) Wt.
HB 4500 0.029 0.290 3.9 t
Q1 3630 0.123 0.808 15 t
Q23 5855 0.638 10.94 70 t
Dip 4940 1.63 19.84 163 t
SHMS Magnets Stored Energy & Weight
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SHMS Requirements from Optics and SC Magnet Design Margin
Magnet Optics at 11GeV/c
Design Maximum
Design Margin
HB dipole TM1.929 2.345 17.7%
Q1 Quad (T/M)M14.752 19.905 25.9%
Q2 Quad (T/M)M19.429 23.210 16.3%
Q3 Quad (T/M)M12.917 23.210 44.3%
Dipole TM11.189 13.591 17.7%
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SHMS SC Magnet Procurement Strategy
• SC Magnets will be built by contractors• In a significant departure from HMS we will
provide major SC magnet components– Superconductor (SSC surplus)– Cryo-Control Reservoir( same as HMS Design)– DC Power System( same as HMS)– Magnet Control System( Same as HMS)– Warm Yoke Steel
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CryogenicControl
Reservoir
Fabricated Cryostated Magnet
RFPFixed Price
Procurement
Conductor Processing
Testing
SC Cable
DC Power System
Magnet Control System
Ship to JLAB
On Site Integration
& Assembly
Acceptance Testing
Magnet Support & Alignment
Warm Iron Yoke
SHMS SC Magnet System Plan
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Procurement Status of SHMS Magnets
• Q1 Magnet bids under evaluation-don’t ask/don’t tell
• Q1 Award plan date is March 15, 2009• Q2Q3 & Dipole RFP released Jan 26, 2009• Q2Q3D Bids due May 2009, Award Dec. 2009• HB magnet design review Feb. 10, 2009• MOU/Contract with NSCL ~ June 2009
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Horizontal BendDesign by NSCL/MSU
Warm Iron SC “C” Magnet
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HB Coil Drawing and 3D CAD of Winding Tooling
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HB Coil Winding ToolingHB Coil Winding Tooling
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11stst Full HB Coil – 90 Full HB Coil – 90 TurnsTurns
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Q1 Quad 3D CAD Model Cold Iron Quad Design like HMS Q1
Bids are IN!!
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Q1 Coil winding at SMI
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First Phase II Q1 Coil
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Q1 Coil Tests
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SHMS Support
Structure
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Mechanical Requirements
• SHMS Minimum Scattering Angle 5.5 degrees• SHMS-HMS angle 5.5+12 = 17.5 degrees• HMS Minimum Angle (present) 10.5 degrees• SHMS Max angle 40 degrees• HMS Max Angle(present ) 85 degrees• Hall C Radius at SHMS max 73 feet• Fit to beam pipe at 5.5 degrees ~ 5 mm• Fit to HMS at 17.5 degrees ~ 1 cm
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SHMS Support Structure Reference Design
• SHMS Support Structure Preliminary Design completed in 2007 by ALION, a local company with experience in large welded steel structures
• SHMS Support Structure Reference Design(RD) Completed by ALION January 28, 2009
• RD will be the technical elements for the bid packages for the SHMS support structure.
• SHMS Support Structure RD review was held in December 08 at JLAB
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SHMS General Arrangement
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SHMS Support Cross Sections
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SHMS Structure Preliminary Assembly Plan
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Top View SHMS & HMS Spectrometers
Bender
Q1Q2
Q3
Dipole
Target
Beamline
HMS Spectrometer
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Bottom View
HMS
SHMSBeamline stands
SHMS wraps around front of HMS
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Bender fit up to HMS Q1
Bender
HMS Q1
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Q3 & Dipole fit up
Beamline Stand
SHMS Q3
SHMS Dipole
24” Beamline
Q2
Shield House notch
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Shield House fit up
Shield House
Beamline
Shield House notch
Dipole
Q3
Q2
Q1
Bender
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Conclusions• SHMS SC Magnet designs are sound, reviewed and
procurement has started• JLAB is a partner in the SHMS Magnet fabrication Superconductor, Cryogenic Interface, Iron Yokes DC systems and PLC based controls.• SHMS Support Structure Reference Design is complete detail design and fabrication begins FY10• Since we haven’t spent a dime yet We are still On time and On budget!!