2. Thomas Jefferson National Accelerator Facility Page 1 IPR October 18-20, 2011 John J. LeRose Independent Project Review of 12 GeV Upgrade Jefferson Lab October 18-20, 2011 Physics Hall A WBS 1.4.1 UPDATED 9/28/11

3. Thomas Jefferson National Accelerator Facility Page 2 IPR October 18-20, 2011 WBS 1.4.1 Hall A Construction Cost Cost to sufficiently upgrade beamline instrumentation to handle 11 GeV beam Compton and Møller Polarimeters: Modifications to beam handling to accommodate stiffer beam Arc Energy Measurement: Cross calibration of 8 arc magnets with “9 th magnet” at higher fields than before.

4. Thomas Jefferson National Accelerator Facility Page 3 IPR October 18-20, 2011 WBS 1.4.1 Construction Cost Overview

5. Thomas Jefferson National Accelerator Facility Page 4 IPR October 18-20, 2011 PRESENT HALL A - SCHEMATIC VIEW

6. Thomas Jefferson National Accelerator Facility Page 5 IPR October 18-20, 2011 Group Leader: Robert Michaels 10 Staff Scientists 2 Post-Docs 7 Technicians 4 Designers One engineer The Hall A Collaboration: –~250 members –Representing 42 Institutions Hall A

7. Thomas Jefferson National Accelerator Facility Page 6 IPR October 18-20, 2011 Hall A - 12 GEV UPGRADE PHYSICS PROGRAM Continue using the two High-Resolution Spectrometers (HRS) for conventional nuclear physics (A(e,e’p), short-range correlations) Extend physics reach with a combination of general & specialized detector systems (Septum magnets, BigBite spectrometer, BigCal calorimeter, DVCS detector, G E n neutron detector, HKS/HES spectrometers & Super BigBite) Capability for one-of-a-kind experiments (e.g. Parity violation experiments & Hypernuclear physics)

8. Thomas Jefferson National Accelerator Facility Page 7 IPR October 18-20, 2011 Already Approved Hall A Experiments

9. Thomas Jefferson National Accelerator Facility Page 8 IPR October 18-20, 2011 Hall A “12 GeV” Upgrades Upgrade beam-line instrumentation to measure beam polarization and energy up to 11 GeV System Present ¹ “6 GeV” Capability 11 GeV Requirements (SRD) Møller Polarimeter± 3%²± 3% Compton Polarimeter± 3%²± 3% ARC Energy Measurement System ± 2 x 10 -4 ± 5 x 10 -4 ² With ongoing improvements of 6 GeV capability, driven by the parity program, expect to achieve ± 1% ¹ Compton will already go to 8 GeV

10. Thomas Jefferson National Accelerator Facility Page 9 IPR October 18-20, 2011 Add quadrupole Q1’ New field-exclusion insert Raise detector by 100 mm WBS 1.4.1.5 BEAMLINE - Møller Polarimeter

11. Thomas Jefferson National Accelerator Facility Page 10 IPR October 18-20, 2011 11 GeV upgrade builds on 6 GeV changes (infrared to green laser) Raise D2, Optical Cavity, Photon Detector, & D3 by 82 mm Rebuild vacuum line Add motion mechanism to electron detector (6 GeV scope) WBS 1.4.1.5.2 BEAMLINE - Compton Polarimeter already done. Done

12. Thomas Jefferson National Accelerator Facility Page 11 IPR October 18-20, 2011 Compton Polarimeter Electron Detector: Installed, Commissioning underway as part of 6 GeV ops Optical Cavity with green laser under development

13. Thomas Jefferson National Accelerator Facility Page 12 IPR October 18-20, 2011  Magnetic Rigidity Bend Angle α is determined with carefully positioned and maintained Harps Integral of each magnet relative to the 9 th magnet was measured All 9 magnets are powered in series (always!) 9 th is kept in a climate controlled “shed” “The Mapper” is used to measure the integral in the 9 th Total integral is inferred from the 9 th + cross calibration WBS 1.4.1.5 BEAMLINE - ARC Energy Measurement Leave the magnets and mapper alone. Upgrade the arc dipole magnets power supply Cross calibrate 8 arc dipoles and the 9 th using the unmodified mapper*

14. Thomas Jefferson National Accelerator Facility Page 13 IPR October 18-20, 2011 WBS 1.4.1 Construction Schedule

15. Thomas Jefferson National Accelerator Facility Page 14 IPR October 18-20, 2011 1.4.1 Hall A Construction Earned Value $K

16. Thomas Jefferson National Accelerator Facility Page 15 IPR October 18-20, 2011 WBS 1.4.1 Hall A Total Labor by Skill

17. Thomas Jefferson National Accelerator Facility Page 16 IPR October 18-20, 2011 WBS 1.4.1 Hall A Cost Methodology Basis of Estimate (BOE) Lehman Review Data Date IPR 10 SEP 31-Jul-10 IPR 11 OCT 31-AUG-11 Costed0% Obligated (Including Phased)0% Quotes from vendors0% Catalog prices0% Estimates from vendors/consultants0% Previous JLab experience100% Information from other labs, universities, etc.0% Engineering judgment0%

18. Thomas Jefferson National Accelerator Facility Page 17 IPR October 18-20, 2011 WBS 1.4.1 Hall A Cost Delta Møller We need another one of these!

19. Thomas Jefferson National Accelerator Facility Page 18 IPR October 18-20, 2011 Construction Hall A: Risk Management Straightforward extension of existing systems. Likelihood AssessmentImpact Assessment WBS ItemDescription Risk RatingTechnicalCostScheduleTechnicalCostSchedule 1.4 Construction Upgrade Hall A, B, & C 1.4.1 Construction Hall A 1.4.1.5 BeamlineLow Risk Assessment Matrix

20. Thomas Jefferson National Accelerator Facility Page 19 IPR October 18-20, 2011 Summary Hall A 12 GeV upgrades are modest Plans are well established We’re ready to start ordering parts Except for the additional cost of a one ‮quadrupole, nothing much has changed In 2011 nothing was scheduled to occur. On cost and on schedule!