Department of Energy Review of the SNS Instruments –Next Generation (SING) Project HYSPEC Instrument: Status and Performance Mark Hagen Instrument Scientist.

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Presentation transcript:

Department of Energy Review of the SNS Instruments –Next Generation (SING) Project HYSPEC Instrument: Status and Performance Mark Hagen Instrument Scientist

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 2 Outline  Major Accomplishments in Last 6 Months  Status  Cost and Schedule Performance  Milestones  Risks and Concerns  Key Activities in Next 6 Months  Response to Previous Reviews  Summary

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 3 Overview of HYSPEC Beamline CVI Shutter External Building Control Cabin Detector Vessel Sample Chopper Box B Drum Shield Chopper Box A HDC Shielding Curved Beam Guide Concrete Shielding

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 4 Major Accomplishments  Installed Core Vessel Insert in Nov. 05 (before SNS CD-4)  Completed and reviewed MCNP-X shielding simulations  Designed and procured bulk shield insert (install in Sept. 06)  Designed components of primary beamline system (guides choppers & vacuum) and held design review in preparation for procurement  Specified the focusing crystal arrays in preparation for procurement  IDT held a workshop on Polarized Neutron Analyzers and agreed for PSI to join HYSPEC IDT and contribute supermirror polarization analyzer, while SING provides 3He polarization analyzer. Extends energy range for polarization analysis from 3.6 to ~90meV.

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 5 HYSPEC Performance by Phase

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 6 Excellent Cost and Schedule Performance

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 7 Baseline Change Table Shielding MCNP-X calculations revealed could use HDC instead of steel T0 chopper Revised budget estimate for T0 chopper much higher than in 05. By joining with ARCS & Sequoia can reduce the cost but still higher than baseline cost. 3He Analyzer PSI joining IDT allows us to have both supermirror (low energy) & 3He (high energy) analyzers. Cost saving to baseline but different distribution of costs.

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 8 Design Design in progress for approx 80% of procurements (or some words like that)

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 9 Design

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 10 Critical Path Driven by BA profile & need to procure long lead items – building, drum shield, polarizing crystals

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 11 Overview of HYSPEC Beamline CVI Shutter External Building Control Cabin Detector Vessel Sample Chopper Box B Drum Shield Chopper Box A HDC Shielding Curved Beam Guide Concrete Shielding

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 12 Major Milestones on Track Core Vessel Insert – On-site & installed before SNS CD-4 Design of the Primary Beamline System - Choppers T0, T1A & T1B disk choppers, T2 Fermi choppers - Beamguides & vacuum jackets/chopper boxes - Shutter insert

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 13 Risks and Concerns  Value of US$ - foreign currency purchases ~ $2.5M  Schedule compatibility with BL15 (NSE) & BL14A  Schedule compatibility with SNS operations  Cost of drum shield  Cost of external building

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 14 Key Activities in Next 6 Months  External building requirements specification  Procure polarizing (Heusler) crystals [Long lead time]  Shielding designs (within target building) [ 6-15m, 15-33m]  Drum shield & chopper box B shielding designs

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 15 Response to Previous Reviews  Recommend approval of CD-2 based on proposed cost, schedule, and technical baselines. CD-2 for HYSPEC was approved on 10/24/05  Ensure that scientific advice from the IDT continues to be incorporated in any decision processes that impact instrument scope through the remainder of the project. Weekly teleconferences are held with the HYSPEC PI's to discuss progress. Meetings are held with the IDT Executive Committee on a 4 to 6 monthly basis and a full meeting of the IDT on a yearly basis. A full meeting of the IDT was most recently held on April 16th - 17th, 2006, at which the full IDT considered the choices for a polarization analyzer for HYSPEC.

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 16 “ Project should consider holding a workshop on polarized neutron technology to assess prospect of the development of 3He polarization technology suitable for HYSPEC.” PINS (Polarized Inelastic Neutron Scattering) Workshop + IDT Meeting April 6 th & 7 th Brookhaven National Lab. Speakers from US, Japan, France, Switzerland, Australia Topics: Science, 3 He, Supermirrors, Heusler, New Instruments IDT voted in favor of PSI joining IDT + contributing supermirror pol. analyzer. IDT voted in favor of including 3 He pol. analyzer to extend capabilities Response to Previous Reviews

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 17 Hazards Analysis TypePresence Unmitigated Level Mitigation Mitigated Level ChemicalPossible during operations; NA during fabrication LowOSHA standards, training and experimental safety reviews Extremely Low CryogenicPossible during operations; NA during fabrication LowSafety Training for Cryogenic Operations will be required Extremely Low ElectricalCommon Industrial less than 240 VAC LowSNS Electrical Safety committee and following extensive LOTO procedures Extremely Low FireRoutine; limited combustible shielding Extremely Low Any combustible materials will be enclosed; fire protection system Extremely Low Magnetic Field Possible during operations around the sample station; fringe field from Heusler polarizer or supermirror analyzer Extremely Low Experiments will follow the magnetic field policy for the SNS Extremely Low MechancialChoppers; equipment lifts; movement of detector vessel LowSNS Instrument Safety Committee review of chopper design and analysis; critical lift procedures; detector vessel speed < 6 inches/s Extremely Low Oxygen Deficiency Detector vessel contains Ar gas, possible leakage Extremely Low No routine access; lock-out procedures will be in place; monitoring devices will be used Extremely Low Prompt Radiation Worker accesses detector area without secondary shutter closed HighPPS interlocks, Beam cut off; also training and warning lights Low Backgroun d Radiation Exposure from HYSPEC or neighboring instruments LowAll external surfaces will be surveyed for compliance to the 0.25 mrem/hr requirement Extremely Low Vacuum and pressure Loss of vacuum in guide systemExtremely Low Guides are contained within steel jacket and beam line shielding Extremely Low Pressurized 3He filter cellMediumDesign shield for use when personnel access area of pressurized cell. ORNL safety reviews & training. Extremely Low

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 18 Ready for CD-3 Task/MilestoneDate CD-0 (Approve Mission Need) 5/03 CD-1 (Approve Preliminary Baseline Range) 4/04 CD-2 for (Instrument) (Approve Performance Baseline) 10/05 SING MIE Project Hazards Analysis updated 8/06 IPR ( DOE-SC review) 8/06 Updated Project Execution Plan 8/06 Design completed Choppers + chopper boxes Guides [1a, 1b, 1c, 2 & 4] Shutter insert Focusing crystals External building {Dec 06} Shielding [6-15m, 15-33m] [Total = $4.76M out of $8.9M] Procurements Scheduled T0 chopper Polarizing crystals (1 st phase)

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 19 Acceleration Plan FY07FY08FY09FY10FY11 +$4.11M+$2.53M-$2.53M-$3.05M-$1.26M Finish date = Sep months float = Feb-10 No change to design (slight re-ordering), but don’t wait for BA External building has to be ~1 year earlier than planned

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 20 Summary  HYSPEC is on-track with budget & schedule  HYSPEC is attracting inward investment (PSI joining the IDT) which is expanding the capabilities of HYSPEC  By end of calendar 2006 will have $4.7M worth of procurements ready  With an appropriate acceleration in BA HYSPEC can be completed in late 2009

O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 21