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Page 1: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 1

Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project

Latifa Elouadrhiri

Jefferson Lab

Page 2: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 2

Outline

• CLAS12 Project Description and Status

– Scope

– Science program & Collaboration

– Cost

– Schedule

– Summary

Page 3: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 3

A B C

Jefferson Lab Today

Two high-resolution 4 GeV spectrometers Large acceptance spectrometer

electron/photon beams

7 GeV spectrometer, 1.8 GeV spectrometer,

large installation experiments

Hall A Hall B

Hall C

Page 4: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 4

6 GeV CEBAF11

CHL-2CHL-2

12Upgrade magnets Upgrade magnets

and power and power suppliessupplies

Two 0.6 GV linacs1.1

Enhanced capabilities in existing Halls

Page 5: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 5

Scope of the 12 GeV Upgrade

12 GeVNew HallEnergy to Hall D

max ~85 µA combined

(higher at lower energy)

max ~180 µA combinedCurrent – Hall A & C

5.5New HallNumber of passes to Hall D

2.2 GeV1.2 GeVAccelerator energy per pass

5040# of cryomodules in LINACS

9 kW4.5 kWCentral Helium Liquefier (CHL)

(B, D) Up to ~5 µA max each

(B) Up to 5 µA maxCurrent – Hall B & D

up to ~11 GeVup to ~6 GeVMax Energy to Halls A/B/C

5 (for max energy)5 (for max energy)Number of passes Halls A/B/C

43Number of Halls

Upgraded JLabPresent JLabParameter

12 GeVNew HallEnergy to Hall D

max ~85 µA combined

(higher at lower energy)

max ~180 µA combinedCurrent – Hall A & C

5.5New HallNumber of passes to Hall D

2.2 GeV1.2 GeVAccelerator energy per pass

5040# of cryomodules in LINACS

9 kW4.5 kWCentral Helium Liquefier (CHL)

(B, D) Up to ~5 µA max each

(B) Up to 5 µA maxCurrent – Hall B & D

up to ~11 GeVup to ~6 GeVMax Energy to Halls A/B/C

5 (for max energy)5 (for max energy)Number of passes Halls A/B/C

43Number of Halls

Upgraded JLabPresent JLabParameter

Page 6: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 6

New Capabilities in Halls A, B, & C, and a New Hall D

9 GeV tagged polarized photons and a 4 hermetic detector

D

Super High Momentum Spectrometer (SHMS) at high luminosity and forward angles

C

High Resolution Spectrometer (HRS) Pair, and specialized large installation experiments

AB

CLAS12 high luminosity, large acceptance.

2/25/09 6Volker Burkert, CLAS12 Workshop, Genoa

Page 7: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 7

Overview of Upgrade Technical Performance Requirements

Hall D Hall B Hall C Hall A

excellent hermeticity

luminosity

1035

energy reach installation space

polarized photons hermeticity precision

EGeV 11 GeV beamline

108 photons/s target flexibility

good momentum/angle resolution excellent momentum resolution

high multiplicity reconstruction luminosity up to 1038

particle ID

B

.

Page 8: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 8

CLAS12

Lum > 1035cm-2s-1

• GPDs & TMDs• Nucleon Spin Structure • N* Form Factors• Baryon Spectroscopy • Hadron Formation

Central Detector

Forward Detector

CLAS12 CLAS12

2m

Page 9: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Initial Science ProgramInitial Science Program

Physics Focus Approved experiments

LOIs supported

GPD’s & exclusive Processes 3 1

TMDs & SIDIS 4 4

Parton Distribution Function & DIS 2 1

Elastic & resonance form factors 2

Hadronization & Color Transparency 2

Baryon Spectroscopy 1

Total 13 7

CLAS12CLAS12

Approved experiments correspond to about 5 years of scheduled beam operation .

Page 10: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Institution Focus AreaArizona State University (US) Beamline, Tagging SystemArgonne National Laboratory (US) Cerenkov Counter

California State University (US) Cerenkov CountersCatholic University of America (US) SoftwareCollege of William & Mary (US) Calorimetry, Magnet Mapping

Edinburgh University (UK) Software Fairfield University (US) Polarized TargetFlorida International University, Miami (US) Beamline/Moller polarimeter

Glasgow University (UK) Central Detector, DAQ, Forward Tagger, RICH Grenoble University/IN2P3 (France) Central Detector

Idaho State University (US) Drift chambers INFN –University Bari (Italy) tbd, interest in RICH INFN –University Catania (Italy) tbd

INFN – Frascati and Fermi Center (Italy) Central Neutron Detector+ interest show in RICHINFN –University Ferrara (Italy) (will join in 2010) tbd, interest in RICHINFN – University Genoa (Italy) Central Neutron Detector+ interest in Forward Tagger

INFN – ISS/Rome 1 (Italy) tbd, interest in RICHINFN – University of Rome Tor Vergata (Italy) Central Neutron Detector+ HD targetInstitute of Theoretical and Experimental Physics (Russia) SC. Magnets, Simulations

James Madison University (US) CalorimetryKyungpook National University (Republic of Korea) CD TOFLos Alamos National Laboratory (US) Silicon Tracker

Moscow State University, Skobeltsin Institute for Nuclear Physics (Russia) Software, SVT Moscow State University (High Energy Physics) (Russia) Silicon TrackerNorfolk State University (US) Preshower Calorimeter

Ohio University (US) Preshower Calorimeter Orsay University/IN2P3 (France) Central Neutron Detector

Old Dominion University (US) Drift ChambersRenselear Polytechnic Institute (US) Cerenkov Counters

Rice University Houston (US) CD TOFCEA Saclay (France) Central Tracker, Reconstruction softwareTemple University, Philadelphia (US) Cerenkov Counters

Thomas Jefferson National Accelerator Facility (US) Project coordination & oversightUniversity of Connecticut (US) Cerenkov CountersUniversity of New Hampshire (US) Central Tracker, Offline Software

University of Richmond (US) Offline SoftwareUniversity of South Carolina (US) Forward TOFUniversity of Virginia (US) Beamline/Polarized TargetsYerevan Physics Institute (Armenia) Calorimetry

CLAS12 Institutions

10

Page 11: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 11

12 GeV COST SUMMARY

• Accelerator and Hall equipment are roughly equal

• Hall B/C/D equipment cost averages ~$26M

• Civil split ~equally between Accelerator systems & Hall D

}

Page 12: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 12

12 GeV Upgrade Funding Profile

-

10,000

20,000

30,000

40,000

50,000

60,000

70,000

FY04 FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13 FY14 FY15

$K

12 GeV - $310M TPC - Jul-2008

Pre-Ops

Construction

PED

R&D

CDR/ACD

Page 13: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

DOE Project Critical Decisions – 12 GeV Schedule

• CD-0 Approve Mission Need (Mar 2004)

• CD-1 Approve Alternative Selection and Cost Range (Feb 2006)• Permission to develop a Conceptual Design Report• Defines a range of cost, scope, and schedule options

• CD-2 Approve Performance Baseline (Nov 2007)• Fixes “baseline” for scope, cost, and schedule• Now develop design to 100%• Begin monthly Earned Value progress reporting to DOE• Permission for DOE-NP to request construction funds

• CD-3 Approve Start of Construction• DOE Office of Science CD-3 Approval: September 15, 2008

• CD-4 Approve Start of Operations or Project Close-out

Page 14: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

DOE Generic Project Timeline

We are here

FEB 2006 NOV 2007 SEP 2008MAR 2004

12 GeV Upgrade – Approval dates

Page 15: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 15

DOE Critical Decision Schedule

CD-0 Mission Need MAR-2004 (A)

CD-1 Preliminary Baseline Range FEB-2006 (A)

CD-2 Performance Baseline NOV-2007 (A)

CD-3 Start of Construction SEP-2008

CD-4A Accelerator Project Completion and Start of Operations

DEC-2014

CD-4B Experimental Equipment Project Completion and Start of Operations

JUN-2015

(A) = Actual Approval Date

CD-4 split in two to ease transition into operations phase

Page 16: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 16

12 GeV Schedule

• May ’11 - Oct ‘11 6-month “down” for initial installations

•Nov ’11 - May ‘12 6-month run 6GeV

•Jun ’12 - May ‘13: 1-year “down” for major installation

• June ’13 - Sep ‘13: Accelerator commissioning

Page 17: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 17

12 GeV Schedule

•Oct ‘13: Hall A commissioning start

•Apr ‘14: Hall D commissioning start

•Oct ‘14: Hall B & C commissioning start

Page 18: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 18

2004-2005 Conceptual Design (CDR) - finished

2004-2008 Research and Development (R&D) – finished (but 1 task)

2006 Advanced Conceptual Design (ACD) - finished

2006-2009 Project Engineering & Design (PED) - ongoing

2009-2014 Construction – started !!Parasitic machine shutdown May 2011 through Oct. 2011

Accelerator shutdown start mid-May 2012

Accelerator commissioning start mid-May 2013

2013-2015 Pre-Ops (beam commissioning)

Hall A commissioning start October 2013

Hall D commissioning start April 2014

Halls B and C commissioning start October 2014

12 GeV Upgrade: Phases and Schedule(based on funding guidance provided by DOE-NP in June-2007)

Page 19: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 19

12 GeV Major Procurement Effort

Of the 29 Advanced Procurement Plans, 22 major procurements are being actively worked (~$65M Phased). A summary of their status is as follows:

3 Requests for information completed

3 Specifications completed

4 Open Solicitations (including CLAS12 Solenoid)

8 Bids Received (including CLAS12 TORUS)

1 Vendor Selected (Hall D Civil Construction Manager)

3 Awarded (Hall D B-Cal Fiber, CHL Civil, Hall D Civil)

22 Active Major Procurements

Of the 29 Advanced Procurement Plans, 22 major procurements are being actively worked (~$65M Phased). A summary of their status is as follows:

3 Requests for information completed

3 Specifications completed

4 Open Solicitations (including CLAS12 Solenoid)

8 Bids Received (including CLAS12 TORUS)

1 Vendor Selected (Hall D Civil Construction Manager)

3 Awarded (Hall D B-Cal Fiber, CHL Civil, Hall D Civil)

22 Active Major Procurements

Page 20: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 20

Future Upgrades to CLAS12 Base Equipment

• Micromegas (Saclay)– Detailed simulation and track reconstruction– Prototypes being tested, engineering design underway– Review will take place in May 2009

• RICH Detector (INFN, Argonne, UK )– Conceptual design with detailed simulations– PAC 34 approved 3 major experiments requiring RICH

• Neutron detector (IN2P3/INFN)– Detailed simulations, components being studied– PAC 34 gave high rating to the science presented in LOI

• HD-ice Polarized target (JLab/INFN)– Laboratory facility being designed

• Quasi real photon tagging facility (INFN, UK)– Feasibility study

Page 21: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

2007 NSAC Long Range Plan (4 recommendations)2007 NSAC Long Range Plan (4 recommendations)

We recommend the completion of the 12 GeV Upgrade at We recommend the completion of the 12 GeV Upgrade at Jefferson Lab.Jefferson Lab.

- It will enable - It will enable three-dimensional imaging of the nucleonthree-dimensional imaging of the nucleon, revealing , revealing hidden aspects of its internal dynamics. hidden aspects of its internal dynamics.

- It will complete our understanding of the It will complete our understanding of the transition between the transition between the hadronic and quark/gluon descriptionshadronic and quark/gluon descriptions of nuclei. of nuclei.

- It will test definitively the It will test definitively the existence of exotic hadronsexistence of exotic hadrons, long-, long-predicted by QCD as arising from quark confinement. predicted by QCD as arising from quark confinement.

- It will provide It will provide low-energy probes of physics beyond the Standard low-energy probes of physics beyond the Standard ModelModel complementing anticipated measurements at the highest complementing anticipated measurements at the highest accessible energy scales.accessible energy scales.

Recommendation 1

Page 22: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 22

Message from JLab Director to CLAS12 Workshop

I had hoped to be with you for at least part of the workshop; unfortunately it became necessary for me to attend a conflicting meeting in Washington, DC, so although I believe my name appears in the participant list, I can claim only a virtual presence.

…. you can be assured that we are working hard to provide the resources both for the 12 GeV Upgrade project and for the running of the 6 GeV program. We were very pleased that recently we received 19 proposals for experiments in the 12 GeV era including some which seek to extend the scope of the currently planned equipment.

….. it is very important that we ensure the resources to provide the base capabilities, but it is also important to develop initiatives and momentum which will ensure an expanding program as we start to operate the machine in the new era.

Please convey my best wishes to all, and, especially to the collaboration, my hopes for a successful workshop.

Hugh Montgomery

Page 23: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 23

Summary

• The 12 GeV Upgrade is the NSAC #1 Recommendation

• The 12 GeV Upgrade is the highest priority at Jefferson Lab

• The project is in construction phase:

CLAS12 construction started with the first major procurements in progress: the superconducting magnets, the forward tracking detectors, and the pre-shower calorimeter.

This is a very exciting time for hadronic physics,

and the perfect time for new collaborators to make

significant contributions to the physics and

equipment of

CLAS12

Page 24: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 24

12 GeV Upgrade Summary

• R&D is essentially complete• PED (Engineering Design) finishes this year (18% remaining)• Construction has started !

• Significant progress:– Procurement planning and awards– MOU development– Installation planning– Space planning

Last 6 months – very exciting!

Next 6 months – lots of hard work ahead

Continued strong User participation is critical to success

Page 25: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 25

CLAS12 – Central Detector

Charged particle tracking in 5T field ΔT < 60psec in CTOF for particle id Vertex reconstruction Moller shield Polarized target operation ΔB/B < 10-4

in 3x5 cm cylinder around center

2/25/09

25

Extension may include Central Tracking w/ Micromegas Neutron Detector Bonus detector

Page 26: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 26

Hall B Upgrade Schedule

Page 27: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 27

Hall B

Construction12.5%PED

1.2%

Remainder of 12GeV

Upgrade TEC86.3%

Hall B 12 GeV Upgrade Cost

(FY07$K Direct)PED 2,313 Construction 24,584 TOTAL TEC $26,897

Beamline

InfrastructureComputing

PED

Magnets

Detectors

ElectronicsDOE Conveened review of Cost and Schedule External Independent Project Review September 2007

DOE Conveened review of Cost and Schedule External Independent Project Review September 2007

Page 28: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 28

Cost Profile

Page 29: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 29

Hall B 12 GeV Upgrade WBS Structure

1.4.2.1SC Magnet

1.4.2.1SC Magnet

1.4.2.1.1Torus

1.4.2.1.1Torus 1.4.2.1.2

Solenoid

1.4.2.1.2Solenoid 1.4.2.2.1

Tracking

1.4.2.2.1Tracking

1.4.2.2.1.1SVT

1.4.2.2.1.1SVT 1.4.2.2.3.1

CTOF

1.4.2.2.3.1 CTOF 1.4.2.2.3.2

FTOF

1.4.2.2.3.2FTOF

1.4.2.2.4Cherenkov

1.4.2.2.4Cherenkov

1.4.2.2.4.1HTCC

1.4.2.2.4.1HTCC 1.4.2.2.4.2

LTCC

1.4.2.2.4.2LTCC

1.4.2.6Infrastructure

1.4.2.6Infrastructure

1.4.2.3.2DAQ

1.4.2.3.2DAQ1.4.2.3.1

Trigger

1.4.2.3.1Trigger

1.4.2.3.3Online

1.4.2.3.3Online

1.4.2.3.5Slow Controls

1.4.2.3.5Slow Controls

1.4.2.4.2TDC

1.4.2.4.2TDC1.4.2.4.1

ADC

1.4.2.4.1ADC

1.4.2.4.3Scalers

1.4.2.4.3Scalers

1.4.2.4.7Crates, Racks

1.4.2.4.7Crates, Racks

1.4.2.5.2Moller Polarimeter

1.4.2.5.2Moller Polarimeter

1.4.2.5.1Faraday Cup

1.4.2.5.1Faraday Cup

1.4.2.5.4Components

1.4.2.5.4Components

1.4.2.2Detectors

1.4.2.2Detectors

1.4.2.2.1.3DC

1.4.2.2.1.3DC

1.4.2.2.2.3PCAL

1.4.2.2.2.3PCAL

1.4.2.2.2Calorimeter

1.4.2.2.2Calorimeter 1.4.2.2.3

Time of Flight

1.4.2.2.3Time of Flight

1.4.2.3.4 Offline

1.4.2.3.4 Offline

1.4.2.3Computing

1.4.2.3Computing 1.4.2.4

Electronics

1.4.2.4Electronics

1.4.2.4.4High Voltage

1.4.2.4.4High Voltage

1.4.2.5Beamline

1.4.2.5Beamline

1.4.2Hall B

1.4.2Hall B

1.4.2.6.1Utilities

1.4.2.6.1Utilities 1.4.2.6.2

Frames

1.4.2.6.2Frames

1.4.2.6.3Assembly

1.4.2.6.3Assembly 1.4.2.6.4

Installation

1.4.2.6.4Installation

Page 30: Thomas Jefferson National Accelerator Facility Status of the CLAS112 Project Page 1 Jefferson Lab 12 GeV Upgrade Status of the CLAS12 Project Latifa Elouadrhiri

Thomas Jefferson National Accelerator FacilityStatus of the CLAS112 Project Page 30

Hall B ProjectHall Leader Volker BurkertHall Lead Engineer Dave KashyControl Account Manager Latifa Elouadrhiri

CLAS12 Steering CommitteeGail Dodge (Chair), Ralf Gothe, Paul Stoler, Gunther Rosner, Michel Garcon

Technical Working Groups Hall B Staff CollabotatorsTracking Detectors M. Mestayer G. Dodge (ODU)Silicon Vertex Tracker A. Yegneswaran M. Merkin (MSU)Cerenkov counters Y. Sharabian P. Stoler (RPICalorimetry S. Stepanyan K. Giovanetti (JMU)FTOF detectors D. Carman R. Gothe (USC) CTOF detector V. Baturin W. Kim (KNU)Beamline A. Deur D. Crabb (Uva)Magnets V. Burkert O. Pogorelko (ITEP) Online/DAQ S. Boiarinov K. Livingston (Glasgow)Offline D. Weygand M. Holtrop (UNH)

Hall B Upgrade Project Organization