12-GeV Upgrade of Hall-C: Project Scope and Status Howard Fenker 12GeV Control Account Manager

Outline Hall-C Upgrade Goal of the Upgrade; Specifications Scope of Work and Cost Breakdown Main Components: Magnets, Detectors, Infrastructure Previous Reviews Design Reviews Project Reviews Technical Cost & Schedule Safety Installation & Planning Readiness Reviews (magnets done and magnets planned) Status and Remaining Work Summary

Hall-C Evolution for 12 GeV Hall-C was originally constructed to house the 6-GeV High Momentum Spectrometer (HMS) and the 1.7-GeV Short Orbit Spectrometer (SOS). Since 1995, many experiments have made good use of the features and stability of the HMS. HMS e- beam SOS Hall-C with HMS and SOS (6-GeV Configuration)

Extend the Physics Reach to 11 GeV To Upgrade Hall-C… build a 11 GeV/c Super-High-Momentum Spectrometer (SHMS) Retain Key Features of HMS: Pivot Rail System Point-Point Optics Design “Flat” Acceptances Shield House Redundancy in Detectors Incorporate them in the SHMS to Provide: Pair of magnetic spectrometers Full momentum capability Large acceptance Angle accuracy and reproducibility Small angle capability Very good particle identification Compatibility with all target configurations HMS e- beam SHMS Hall-C with HMS and SHMS (12-GeV Configuration)

Hall C: SHMS Design Parameters Range of Central Momentum 2 to 11 GeV/c for all angles Momentum Acceptance  -10% to +22% Momentum Resolution 0.03-0.08% (<0.2%) Scattering Angle Range 5.5 to 40 degrees Solid Angle Acceptance >4.5 msr for all angles (>4.0) Horizontal Angle Resolution 0.5 - 1.2 mrad Vertical Angle Resolution 0.3 - 1.1 mrad Vertex Length Resolution 0.1 - 0.3 cm Tracking Rate Capability 5 MHz Beam Capability Up to 90 µA, 11 GeV beam Protection from Hazards: Magnetic, Cryogenic, Fall, etc. Angle Changes Rapid, Remote, Reproducible

Hall C 12 GeV Upgrade – Scope Spectrometer Magnets (incl. Cryo Interfaces, DC Power, Controls) Detectors (most provided by Users) Computing (In Counting House: Servers & Terminals) Electronics: DAQ Modules, Crates, Cables Beamline Moeller Polarimeter: Collimator mods, Power to 2nd Large Quadrupole Arc Magnets Mapping (beam energy measurement) Scattering Chamber Window Upgrade Beampipe and Stands Infrastructure Support Structure, Shield House Vacuum, Cryogenics, Cables, Utilities, Safety Installation Magnet Testing; Commissioning with Beam

Hall-C 12-GeV Project Scope Dipole Q3 Q2 Q1 HB Magnet Power Supplies Cryogenics Distribution Concrete Shield House Removable Roof Steel Support Structure Axis of Rotation Data-Acquisition Computers, Controls & Instrumentation in Shielded Room Rail Target Electron Beam Particle Detectors Also: Beamline Vacuum, Mods to Moller, Compton, Scattering Chamber

Hall C 12 GeV Upgrade – $$ Distribution

✔ ✔ SHMS Magnets HB (Horizontal-Bend Dipole) Superferric “C” magnet 2.6 Tesla 21 cm x 25 cm warm bore 0.75 m EFL 1.93 Tm 19 % design margin 220 kJ stored Energy SC is SSC outer cable ✔ Dipole 3.86 Tesla Cosine(Θ) dipole 60 cm warm bore 2.85 m EFL 11.2 Tm Integral B.dL 10 % Test margin 13.7 MJ stored Energy 4800 A/cm^2 11 GeV/c Iron Yoke: 126 Tons Built By: Michigan State Univ. / FRIB Built By: Sigmaphi, France ✔ Q2 11.8 T/m cos(2Θ) Quad 60 cm. warm bore 1.64 m EFL 10 % Test margin 7.6 MJ stored Energy Iron Yoke: 72 Tons Q3 identical to Q2 but runs at 7.9 T/m Iron Yoke: 18 Tons Both use same conductor as dipole (Cu + SSC outer) Q1 Quadrupole JLab Cold Iron Design Clone of HMS Q1 11 GeV/c performance 7.9 T/m Gradient 40 cm warm bore 1.86 m EFL 14.75 (T/m)m Int. Grad. 398 kJ Stored Energy 25 % design margin SC is SSC outer Built By: Sigmaphi, France Built By: Scientific Magnetics, Inc., U.K.

Ar/Ne Noble-Gas Cerenkov SHMS Detectors Noble Gas Cerenkov Drift Chambers Trigger Hodoscopes 3 Planes Scintillator 1 Plane Quartz Heavy Gas Cerenkov* Calorimeter Detector Frames Aerogel (Funding Color Codes) 12 GeV Project Funded NSF MRI Funding Gift from NIKHEF and ANSL C4F8O Heavy Gas Cerenkov Drift Chambers Ar/Ne Noble-Gas Cerenkov *HGC is largely funded by NSERC grant to U. Regina Shower Counter PreShower Counter OK to note that Aerogel project proposal just received NSF funding. S2 Hodoscope Aerogel Cerenkov S1 Hodoscope

Original Detectors Schedule Phases

Key Reviews for Hall-C 12GeV Jan. 2008: Review of SHMS Detectors Apr. 2008: Design and Safety Review of the Superconducting Magnets Dec. 2008: Design & Safety Review of the SHMS Support Structure & Shield House Feb. 2009: Hall-C Installation Review Feb. 2009: Design & Safety Review of HB Superconducting Magnet Aug. 2009: Final Design Review of SHMS Detectors Nov. 2013: Finite-Element Analysis Review of Dipole Magnet Jan. 2015: Physics Division ERR for Q1 Magnet Mar. 2015: Physics Division ERR for HB Magnet Followup Reviews: Aug. 2015, Nov. 2015 Oct. 2016: Physics Division ERR for Dipole, Q2, Q3 Magnets Magnets use common design; Full review to be held upon arrival of first item. Inspections to be performed after installations -- Before LHe cooldown. JSA Director’s Project Reviews Dec. 2008, Mar. 2014, Nov. 2014, Sep. 2015 Director’s Review of HB Magnet Aug. 2014 DOE Project Reviews -- with Expert Detector & Magnet Subcommittees Jun. 2007, Jul. 2008, Sep. 2009, Apr. 2010, Oct. 2011, June 2012, Nov. 2012, May 2013, Apr. 2014, Nov. 2014, Mar. 2015 Oct. 2015,

Hall-C 12GeV Infrastructure & Magnets Heavy-Gas Cerenkov (HGC) being rigged into place in the Shield House Cryogen U-Tubes Waiting for Magnets HB and Q1 Magnets, and Yokes for D, Q2, Q3 in place on the Carriage

Hall-C 12GeV Infrastructure Moller Quads Q2 Yoke Steel Compton Stands Gas Supply Panel DAQ in Shield House Rear SHMS Shield Wall Gas sniffer & PSS Patch Cables

SHMS Detectors Detectors Drift Chambers Completed. Cosmic testing in Bldg. 23 Detectors All Detector Construction is Complete. All Detectors are On Site. Rear Detectors have been installed. Rear Detectors Installed Noble-Gas Cerenkov waiting in Bldg. 23 Optics Check

Hall-C Upgrade: Status Finished: SHMS Carriage & Shield House Shielding wall from Beam Dump Scattering Chamber High Voltage Cables Patch System Detector / Trigger Patch Cable System Downstream Beam Pipe & Stands ARC Magnet Mapping & Analysis Moeller Collimator Mods Calorimeter Built, Installed, Tested Preshower Built, Installed, Tested Hodoscopes Built, Tested, Installed; Checking PMT’s Bases Drift Chambers Built, On Frames; Held back for Dipole NGC: Built; Staged to Install after Dipole HGC: Built, Tested, Installed Detector Frames / Stands: In Use Detector Gas Supplies: Ready Flammable Gas Sensors; Smoke Detectors DAQ, Cables, Power: In Place Counting House Computers Magnet Power, Controls, Cryogenics Magnets: HB & Q1 Installed, Tested, Accepted Not Finished: Receive, Install, and Test Final 3 Magnets CRITICAL PATH Connect spectrometer vacuum between magnets (parts on hand) Install beam pipe (parts on hand - waiting for magnets) Install Drift Chambers and Noble-Gas Cerenkov (ready) Connect Current Leads for 2nd Moeller Quad (parts on hand) Install dry-pipe Fire Sprinklers (in progress) B-Field Shunt for SHMS at small angle (vendor) Leaking bellows joint Inside dipole vacuum Enclosure.

The Project’s Definition of “Success” HALL C Key Performance Parameter (Draft) Detector operational: events recorded with a > 2nA electron beam at > 6 GeV beam energy (3 pass). KPP Demonstration: Detector running for 8 hours recording data from all subsystems. Screenshots of beam status and/or accelerator e-log entries demonstrating electron beam current and energy. Data showing relative timing of trigger, tracking, and particle identification detector subsystems. Figures demonstrating charged-particle tracks from position-sensitive detectors. Evidence of particle identification from calorimetry and Cerenkov detectors.

Summary The 12GeV Upgrade Project equips Hall-C with an 11-GeV Spectrometer as a Partner to the Existing 7.4 GeV HMS. Upgrade was methodically Planned, Reviewed, Reviewed, Reviewed, and Executed. It is essentially complete, needing only the final three magnets. We look forward to demonstrating its success.

THE END

SHMS Magnetic Optics Horizontal Vertical HB Q1 Q2 Q3 DIPOLE Iron Yokes Particle Trajectory Envelopes (Conceptual) MOMENTUM: LOW CENTRAL HIGH Vertical

Hall C: Before / After Upgrade HMS SOS Hall-C with HMS and SOS (6-GeV Configuration) e- beam HMS SHMS Hall-C with HMS and SHMS (12-GeV Configuration) e- beam

SHMS Designed for Small Scattering Angles target chamber Q2 Q1 HB HMS

Hall-C with SHMS and HMS 11-GeV Spectrometer Partner of existing 6‐GeV HMS MAGNETIC OPTICS: Point-to Point QQQD for easy calibration and wide acceptance. Horizontal bend magnet allows acceptance at forward angles (5.5°) Detector Package: Drift Chambers Hodoscopes Cerenkovs Calorimeter All derived from existing HMS/SOS detector designs Well-Shielded Detector Enclosure Rigid Support Structure Rapid & Remote Rotation Provides Pointing Accuracy & Reproducibility demonstrated in HMS SHMS (New) SHMS: dQQQD HMS (Exists) HMS: QQQD SHMS = Super High Momentum Spectrometer HMS = High Momentum Spectrometer

Charges addressed in this talk Charge Items: 3.Have the specific equipment been demonstrated for readiness to operate the spectrometers? This includes magnets, detectors and DAQ. Is all the necessary equipment installed and operable? If not, what are the completion/commissioning schedule and procedures? 8. Are the responsibilities for carrying out each job identified, and are the manpower and other resources necessary to complete them on time in place?