Hall B 12 GeV Upgrade System

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Hall B 12 GeV Upgrade System Safety
ReviewProject Overview

Latifa Elouadrhiri Hall B 12 GeV Control Account
Manager
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Outline

• Introduction
• WBS Structure
• Organization Infrastructure
• Cost Schedule
• Design and RD Tasks
• Project tracking and reviews
• Risk Mitigation
• Summary

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CLAS12 Requirements
The 12 GeV physics program requires measurement
of exclusive reactions. At high energies cross
sections are small and high energy particles are
produced in the forward direction. The physics
program requires

• High operating luminosity of 1035 cm-2sec-1
• Small angle capabilities for charged and neutral
  particle detection
• Particle ID to higher momentum (e-/p-, p/K/p,
  g/po)
• More complete detection of hadronic final state

The PAC has approved 5 years of experiments for
the 12 GeV program most these experiments
require measurements of exclusive reactions
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CLAS12 - Detector
Forward Detector
Central Detector
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CLAS12 Detector Package
Forward Detectors LTCC, FTOF, PCAL, ECAL all
Supported by Forward Carriage
HTCC Supported on Cart on Space Frame Subway
Central Detectors CTOF, SVT Supported from
Solenoid
Drift Chambers Supported
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Detector in the Hall
CLAS12 Infrastructure in Hall B
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Hall B 12 GeV Upgrade WBS
Hall B 12 GeV Upgrade WBS Structure
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Hall B 12 GeV Upgrade WBS Structure
1.4.2 Hall B
1.4.2.2 Detectors
1.4.2.1 SC Magnet
1.4.2.1.1 Torus
1.4.2.2.1 Tracking
1.4.2.2.2 Calorimeter
1.4.2.2.3 Time of Flight
1.4.2.2.4 Cherenkov
1.4.2.1.2 Solenoid
1.4.2.2.2.3 PCAL
1.4.2.2.1.1 SVT
1.4.2.2.3.1 CTOF
1.4.2.2.4.1 HTCC
1.4.2.2.4.2 LTCC
1.4.2.2.3.2 FTOF
1.4.2.2.1.3 DC
1.4.2.6 Infrastructure
1.4.2.5 Beamline
1.4.2.3 Computing
1.4.2.4 Electronics
1.4.2.5.1 Faraday Cup
1.4.2.3.2 DAQ
1.4.2.3.1 Trigger
1.4.2.4.2 TDC
1.4.2.4.1 ADC
1.4.2.5.2 Moller Polarimeter
1.4.2.6.1 Utilities
1.4.2.6.2 Frames
1.4.2.3.3 Online
1.4.2.4.3 Scalers
1.4.2.3.4 Offline
1.4.2.4.4 High Voltage
1.4.2.6.3 Assembly
1.4.2.6.4 Installation
1.4.2.5.4 Components
1.4.2.3.5 Slow Controls
1.4.2.4.7 Crates, Racks
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Hall B 12 GeV Upgrade WBS Structure
1.4.2 Hall B
Moderate risk Elements Dedicated one day review
for each system April 2008
1.4.2.2 Detectors
1.4.2.1 SC Magnet
1.4.2.1.1 Torus
1.4.2.2.1 Tracking
1.4.2.2.2 Calorimeter
1.4.2.2.3 Time of Flight
1.4.2.2.4 Cherenkov
1.4.2.1.2 Solenoid
1.4.2.2.2.3 PCAL
1.4.2.2.1.1 SVT
1.4.2.2.3.1 CTOF
1.4.2.2.4.1 HTCC
1.4.2.2.4.2 LTCC
1.4.2.2.3.2 FTOF
1.4.2.2.1.3 DC
1.4.2.6 Infrastructure
1.4.2.5 Beamline
1.4.2.3 Computing
1.4.2.4 Electronics
1.4.2.5.1 Faraday Cup
1.4.2.3.2 DAQ
1.4.2.3.1 Trigger
1.4.2.4.2 TDC
1.4.2.4.1 ADC
1.4.2.5.2 Moller Polarimeter
1.4.2.6.1 Utilities
1.4.2.6.2 Frames
1.4.2.3.3 Online
1.4.2.4.3 Scalers
1.4.2.3.4 Offline
1.4.2.4.4 High Voltage
1.4.2.6.3 Assembly
1.4.2.6.4 Installation
1.4.2.5.4 Components
1.4.2.3.5 Slow Controls
1.4.2.4.7 Crates, Racks
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Hall B Upgrade Project Organization
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Hall B Upgrade Project Organization
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Hall B Group and Collaboration

• Experienced staff in place
• Staff scientists (17)
• Engineering and technical staff (21 )
• Lead engineer, 2 mechanical engineers, electrical
  engineer, Hall coordinator, 5 detector
  technicians, 3 mechanical technicians,
• 3 electrical technicians, 5 designers
• 60 of staff scientists were involved in original
  project,
• 80 of technical staff.
• Size of collaboration (more than 200)
• 28 US institutions
• 11 Foreign institutions (Armenia, France, Italy,
  Russia, S. Korea, UK)

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CLAS12 - Institutions

• Institution Focus Area
• Arizona State University (US) Beamline,
  Tagging System
• Argonne National Laboratory (US) Cerenkov
  Counter
• California State University (US) Cerenkov
  Counters
• Catholic University of America (US) Reconstruc
  tion Software
• College of William Mary (US) Magnet Mapping
• Edinburgh University (UK) Software
• Fairfield University (US) Polarized Target
• Florida International University, Miaimi
  (US) Beamline/Moller polarimeter
• Glasgow University (UK) Online, Data
  Acquisition
• Hampton University (US) Central Tracking
• Idaho State University (US) Drift chambers
• INFN Frascati (Italy) Central Detector
• INFN Genova (Italy) Cental Detector
• Institute of Theoretical and Experimental Physics
  (Russia) SC. Magnets, Simulations
• James Madison University (US) Calorimetry
• Kyungpook National University (Republic of
  Korea) CD TOF
• Los Alamos National Laboratory (US) Silicon
  Tracke
• Moscow State University, Skobeltsin Institute for
  Nuclear Physics (Russia) Software, SVT

MOUs are being Developed
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Hall B Status

• Facilities still in place
• Fabrication and assembly space in EEL building
  and Test Lab
• Large class 10,000 clean room for wire chamber
  stringing
• Collaborating institutions will provide
  substantial fabrication assembly facilities
• Procedures and Policies in place
• EHSQ, Safety documents for operations
• Special safety reviews for new equipment
• Conduct of Operations document
• Readiness Reviews for new experiments
• Quality assurance Program in place
• Operating experience with the present CLAS
• World leader in operating Large Acceptance
  Detectors in high luminosity electron scattering
  environment
• Experience with 3 different superconducting
  magnets (Torus, Solenoid, Helmholtz magnets)
• Implemented numerous incremental upgrades of
  detectors and ancillary equipment

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12 GeV Upgrade Schedule
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Hall B Upgrade Schedule
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Hall B Upgrade Schedule
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Hall B 12 GeV Upgrade Cost
DOE Conveened review of Cost and Schedule
External Independent Project Review September
2007
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Cost Profile
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Hall B RD (WBS 1.1.3)
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Hall B RD (WBS 1.1.3)
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Hall B Design Reviews

• Hall-B-convened reviews
• First CLAS12 Workshop Detector Review - February
  2007
• SVT Review - March 2007
• Second CLAS12 Workshop Detector Review- May 2007
• CLAS12 RICH Detector Workshop January 2008
• Third CLAS12 Workshop Detector Review- February
  2008
• JLab-convened reviews
• Program Advisory Committee (PAC 30) - August 2006
• Superconducting Magnet Review - September 2006
• Drift Chamber Review - March 2007
• Particle ID Detector Review - April 2007
• High Threshold Cerenkov
• Preshower Calorimeter
• Program Advisory Committee (PAC 32) - August 2007
• Superconducting Magnet Review April 2008
• SVT Review April 2008
• Complete CLAS12 Detector Review May 8, 2008
• DOE-convened reviews

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CLAS12 DC Design Review, (March 2007)
No Recommendation
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CLAS12 PID Design Review, (Apr 2007)
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CLAS12 PID Design Review, (Apr 2007)
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CLAS12 SVT Design Review, (Apr2008)
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Hall B Upcoming Design Reviews

• Hall-B-convened reviews
• Fourth CLAS12 Workshop Detector Review- May 2008
• DOE-convened reviews
• Independent Project Review July 22- 24, 2008
• JLab-convened reviews
• Program Advisory Committee (PAC 34) December
  2008

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Construction Hall B Risk Matrix
The Overall risk of the Hall B subsystems 1.4.2.3
1.4.2.6 is LOW JLab Staff experienced with
similar detector design and construction during
the original construction of Hall-B Moderate
risk for one detector element (SVT) and two
magnets Lack of in-house experience with SVT
detector technology Low likelihood but high
impact on technical and cost performance of
CLAS12 magnets
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Hall B Risk Management

• Silicon Vertex Tracker (SVT) considered
  moderate risk due to limited expertise at JLab
  with this technology.
• Mitigation
• Attracted SiLab Group at Moscow State University
  as collaborating member with broad expertise in
  Silicon Detector Technology (D0, ZEUS, PHENIX,
  TESLA)
• Close monitoring and coordination of vendor
• Bi-weekly phone conferences of technical teams
• Mutual visits
• Documentation Technical Design Report
• Hall B Instrumentation Group developed in-house
  expertise in SVT readout electronics and
  interface with CODA

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Hall B Risk Management

• Superconducting magnet considered moderate
  risk e.g. due to high impact in case of failure
  of one of the 6 Torus coils
• Mitigation
• Perform RD and optimization studies (Tests of
  the existing superconductor completed)
• Thorough review of design (Sep 06)
• Thorough review of the cost estimate (Aug 07)
• Selected outside institutions (ITEP/Efremov
  Institute in St. Petersburg, Russia) with broad
  expertise in s.c. magnet analysis, design and
  construction, for the development of reference
  designs for Torus and Solenoid
• Provide adequate schedule float in commissioning
  stage
• (typically about one year)
• Maintain core staff at laboratory with relevant
  experience
• Bi-weekly phone conferences of technical teams
• Documentation
• Mutual visits

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Summary of Hall B 12 GeV Upgrade

• The technical scope of the Hall B upgrade with
  CLAS12 is well matched to the performance
  requirements
• Major portions of the project scope are based on
  existing technology
• Overall technical risks are low
• Utilize many components of CLAS and Hall B
  Infrastructure
• Planning is sound and based on the broad previous
  experience of the JLab technical staff and the
  collaboration
• Experienced staff in place with an excellent
  track record on the construction, operation, and
  incremental upgrades of the Hall B equipments