Hall C MeetingSHMS Magnets and Support Structure

Design and Procurement Status

Paul BrindzaJanuary 26, 2009

SHMS Magnets and Support Structure

• SHMS Spectrometer and Magnets • SC Magnet Procurement Status• SHMS Magnet Recent Progress• SHMS Support Structure• Conclusions

SHMS

Target

Bender Q1 Q2 Q3 Dipole Detectors

Electronics RoomCryo

Transfer Line

Power Supplies

Shield House

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

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

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

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%

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

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

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

Horizontal BendDesign by NSCL/MSU

Warm Iron SC “C” Magnet

HB Coil Drawing and 3D CAD of Winding Tooling

HB Coil Winding ToolingHB Coil Winding Tooling

11stst Full HB Coil – 90 Full HB Coil – 90 TurnsTurns

Q1 Quad 3D CAD Model Cold Iron Quad Design like HMS Q1

Bids are IN!!

Q1 Coil winding at SMI

First Phase II Q1 Coil

Q1 Coil Tests

SHMS Support

Structure

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

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

SHMS General Arrangement

SHMS Support Cross Sections

SHMS Structure Preliminary Assembly Plan

Top View SHMS & HMS Spectrometers

Bender

Q1Q2

Q3

Dipole

Target

Beamline

HMS Spectrometer

Bottom View

HMS

SHMSBeamline stands

SHMS wraps around front of HMS

Bender fit up to HMS Q1

Bender

HMS Q1

Q3 & Dipole fit up

Beamline Stand

SHMS Q3

SHMS Dipole

24” Beamline

Q2

Shield House notch

Shield House fit up

Shield House

Beamline

Shield House notch

Dipole

Q3

Q2

Q1

Bender

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!!