Thomas Jefferson National Accelerator Facility Page 1 IPR September 28-30, 2010 John LeRose Independent Project Review of 12 GeV Upgrade Jefferson Lab September 28-30, 2010 Physics Hall A WBS 1.4.1

Thomas Jefferson National Accelerator Facility Page 2 IPR September 28-30, 2010 Outline Introduction to Hall A Hall A planned Physics Specific “12 GeV” Upgrades in Hall A –Møller Polarimeter –Compton Polarimeter –Arc Energy Measurement In-House installation review Budget EVMS Schedule Costs –Methodology –Changes Risk Management Commissioning Summary

Thomas Jefferson National Accelerator Facility Page 3 IPR September 28-30, 2010 PRESENT HALL A - SCHEMATIC VIEW

Thomas Jefferson National Accelerator Facility Page 4 IPR September 28-30, 2010 Group Leader: Kees de Jager 10 Staff Scientists 2 Post-Docs 7 Technicians 4 Designers One shared engineer The Hall A Collaboration: –~250 members –Representing 42 Institutions Hall A

Thomas Jefferson National Accelerator Facility Page 5 IPR September 28-30, 2010 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)

Thomas Jefferson National Accelerator Facility Page 6 IPR September 28-30, 2010 Already Approved Hall A Experiments Exp. #Title PAC DaysPAC #Statusrating Measurement of Electron-Helicity Dependent Cross Sections of Deeply Virtual Compton Scattering with CEBAF at 12 GeV10030A Measurement of the Neutron Asymmetry A1n in the Valence Quark Region using 8.8 and 6.6 GeV Beam Energies and BigBite spectrometer in Hall A2336AA-A Precision Measurement of the Proton Elastic Cross Section at High Q AA-A Large Acceptance Proton Form Factor Ratio Measurements at 13 and 15 (GeV/c) 2 Using Recoil Polarization Method6035AA-A An Ultra-precise Measurement of the Weak Mixing Angle using Møller Scattering?34A Measurement of the Neutron Electromagnetic Form Factor Ratio GEn/GMn at High Q AA-A Neutron Magnetic Form Factor at Q 2 up to 18 (GeV/c) AB+B Target Spin Asymmetry using polarized 3 He35A Total Measurement of the F2n/F2p, d/u Ratios and A=3 EMC Effect in DIS off the Tritium and Helium Mirror Nuclei3136CACond Precision Measurement of Parity-violation in Deep Inelastic Scattering Over a Broad Kinematic Range35034CA Semi-Inclusive Charged π and k Production from Polarized 3He?34CA

Thomas Jefferson National Accelerator Facility Page 7 IPR September 28-30, 2010 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 ± 5 x 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

Thomas Jefferson National Accelerator Facility Page 8 IPR September 28-30, 2010 Add quadrupole Q1’ New field-exclusion insert Raise detector by 100 mm WBS BEAMLINE - Møller Polarimeter

Thomas Jefferson National Accelerator Facility Page 9 IPR September 28-30, 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 BEAMLINE - Compton Polarimeter already done. Done

Thomas Jefferson National Accelerator Facility Page 10 IPR September 28-30, 2010 Compton Polarimeter Electron Detector: Installed, Commissioning underway as part of 6 GeV ops Optical Cavity with green laser Installed and working in the Hall

Thomas Jefferson National Accelerator Facility Page 11 IPR September 28-30, 2010  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 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*

Thomas Jefferson National Accelerator Facility Page 12 IPR September 28-30, 2010 Arc Energy Measurement Manpower Calibration manpower provided by Engineering (disconnecting, reconnecting, moving, and aligning magnets) Scientists: 1 dedicated Physics staff member: A. Saha Help from Accelerator: M. Tiefenback Kent State University is also interested Senior Scientist and Student(s) Clermont-Ferrand (original designers) will also participate

Thomas Jefferson National Accelerator Facility Page 13 IPR September 28-30, 2010 Installation Review 12 GeV Project convened-installation review in February 2009 Local experts reviewed installation plans for each Hall Re Hall A: “All three efforts are about the same size as a typical experimental change-out during 6 GeV operations and don’t represent anything particularly challenging in their scope…” Arc Magnet Calibration Detailed Plan Compton/Møller Detailed Plan

Thomas Jefferson National Accelerator Facility Page 14 IPR September 28-30, 2010 WBS 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.

Thomas Jefferson National Accelerator Facility Page 15 IPR September 28-30, 2010 WBS Construction Cost Overview

Thomas Jefferson National Accelerator Facility Page 16 IPR September 28-30, 2010 What’s Changed Scope and cost are the same Modified schedule: –Moved ARC Energy calibration from 6 month down to 12-month down (2 nd half of FY12) due to funding limitations and manpower concerns – Moved procurement/manufacture of parts for Møller and Compton from 1 st Quarter FY11 to 1 st Quarter FY12 to avoid space pressure

Thomas Jefferson National Accelerator Facility Page 17 IPR September 28-30, 2010 Hall A Procurement/Expense Obligation Profile Purchase assorted parts and hardware needed for Compton and Møller Upgrades

Thomas Jefferson National Accelerator Facility Page 18 IPR September 28-30, 2010 WBS Hall A Total Labor by Skill FY11 DOWN FY12/13 DOWN

Thomas Jefferson National Accelerator Facility Page 19 IPR September 28-30, 2010 Hall A Cost Delta FY10$K Direct IPR Apr 2010IPR Sep 2010 WBSExperimental SystemsMarch CostbookJuly CostbookΔ Hall A427 0

Thomas Jefferson National Accelerator Facility Page 20 IPR September 28-30, 2010 Commissioning 1 October 2013 deliver 3-pass >6 GeV beam to Hall A Detectors operational to record events from beam target interaction with 3-pass ≥ 6 GeV beam, ≥ 2 nA –If you can get the beam down the beamline, we can do that today.

Thomas Jefferson National Accelerator Facility Page 21 IPR September 28-30, 2010 Commissioning Spectrometer DAQ is already operational Møller Polarimeter: –Target: already operational –Detectors: already operational –Magnets: already operational extra quad needed for low energy operation –Might require some fine tuning for modified geometry –Manpower: Accelerator Ops + existing Hall A Staff Compton Polarimeter: –Optical cavity: already operational –Detectors: already operational –Will need to establish beam in the chicane and tune it to minimize background –Manpower: Accelerator Ops + existing Hall A Staff Arc Energy is already operational, just need extended cross calibration

Thomas Jefferson National Accelerator Facility Page 22 IPR September 28-30, 2010 Summary Hall A 12 GeV upgrades are modest Plans are well established Except for some “tweaking” of the schedule, nothing much has changed In 2010 nothing was scheduled to occur. On cost and on schedule!

Thomas Jefferson National Accelerator Facility Page 23 IPR September 28-30, 2010 Backup slides

Thomas Jefferson National Accelerator Facility Page 24 IPR September 28-30, 2010 Compton Polarimeter Manpower Installation: Hall A techs with help from Engineering Scientists: 1 dedicated staff member: S. Nanda Help from Hall A Post-doc: A. Camsonne Help from Clermont-Ferrand

Thomas Jefferson National Accelerator Facility Page 25 IPR September 28-30, 2010 Møller Polarimeter Manpower Installation: Hall A techs with help from Engineering 1 dedicated staff member: J Gomez Help from Hall A Post-doc: J. Zhang Help from Kharkov Institute: S. Glamazdin

Thomas Jefferson National Accelerator Facility Page 26 IPR September 28-30, 2010 JLab Review Recommendation Halls A&C Interim Installation Review (Feb 2009) Recommendation # AC_INST09-1 : The Hall A CAM and work coordinator need to reconcile milestones, durations, and manpower between the presented detailed installation schedule and the P3e schedule. Status: This will be reconciled in FY10, well ahead of the Hall A installation work. Change Request was processed to resolve schedule conflicts, take account of existing work and experience gained with upgrades to both polarimeters for ongoing experiments, and prepare a work plan to complete all tasks during FY2012. Closed – May 2010

Thomas Jefferson National Accelerator Facility Page 27 IPR September 28-30, 2010 WBS Hall A Cost Methodology Basis of Estimate (BOE) Lehman Review Data Date IPR JUN-09 IPR 10 SEP 31-Jul-10 Costed0% Obligated0% Quotes from vendors0% Catalog prices0% Estimates from vendors/consultants0% Previous JLab experience100% Information from other labs, universities, etc.0% Engineering judgment0%

Thomas Jefferson National Accelerator Facility Page 28 IPR September 28-30, 2010 Construction Hall A: Risk Management Straightforward extensions of existing systems. Likelihood AssessmentImpact Assessment WBS ItemDescription Risk RatingTechnicalCostScheduleTechnicalCostSchedule 1.4 Construction Upgrade Hall A, B & C Construction Hall A BeamlineLow Risk Assessment Matrix

Thomas Jefferson National Accelerator Facility Page 29 IPR September 28-30, Hall A Construction Earned Value $K

Thomas Jefferson National Accelerator Facility Page 30 IPR September 28-30, 2010