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US ITER Project Plans

David JohnsonDiagnostics Team Leader

March 26, 2007

ITPA12

• Design Basis

• US Scope

• Port Plugs and Integration

• Assessment Studies

• Schedule/Milestones

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Scope DefinitionDWG Agreement Forms Basis for Sharing

• 2004 DWG Sharing Agreement is basis for defining US diagnostic share at 16%

– Features ‘port-based’ repackaging - different arrangement of diagnostics from 2001

– Also places responsibility for integration of diagnostics with plug providers

– Revision underway to accommodate India -- Not yet fully endorsed

• When compared with 2001 Basis for determining ITER ‘credit’, some scope ambiguity exists, e.g.

– DWG added scope for MSE (2 vs 1 view) and for plug integration relative to 2001 Design

– US scope/credit may change to accommodate India

• New procurement arrangements, incorporating ‘port-based packaging’ need to be negotiated to remove ambiguity.

• USIPO will not be able to place large design contracts until ambiguities are better resolved.

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US Diagnostic Packages

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Diagnostic Front-End Integration

• Design constraints– Intermingling of numerous

labyrinths, many with precision optics

– Provide access while limiting neutron streaming

– Provide attachments and cooling to blanket shield modules

• Plug E3 is a US responsibility (DWG Sharing Agreement)– Many other diagnostics need to be integrated into plug E3

> 2 visible/IR camera views (EU) 2 edge CXRS views (RF) 2 H arrays (RF) X-ray crystal views (possible) (??)

• The division of integration design responsibility between the IT and the parties has not been fully negotiated.

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Development of Radial Diagnostic Cassettes

• Radial cassettes may make integration and testing easier.

• May also make maintenance easier.

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Central Tube Development for Upper Ports

• Metal seal, removable back plate gives access to central tubes.

• Back plate has only windows. “Hard” feedthrus on side panels

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Developing Neutronics Capability with ATILLA

• ATILLA, a discrete-ordinates, radiation transport code produced by Transpire, Inc., is being benchmarked for use on ITER.

• In the US, this work is a joint PPPL/UCLA effort well connected to IO and EU efforts. (See Talk by R. Feder later today)

• Potentially essential tool for qualifying diagnostic labyrinth designs.

Tetrahedral Mesh - 496k Cells

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Assessment Studies

• For the US instrument development, near-term priorities were presented to the community and widely distributed last Spring.

• Priorities stressed better definition of instrument front-end configurations, performance assessments, consideration of alternate approaches and tool development.

• ~ 40 discussions with experts concerning these priority issues and relevant capabilities were documented.

• Awards for a total of 14 studies (including 2 cost studies) were made in summer and fall.

• Results will be presented at this meeting.

• All studies are completed or nearing completion 75% of reports have been submitted.

• Final reports will be placed on ITER IDM system.

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Assessment Studies

Diagnostic Package Task Summary Institution(s) Personnel

Upper Visible/IR Camera assess optical design, central tube concept LLNLC. Lasnier, M. Fenstermacher, M. Groth, L. Seppala,

K. Morris, E. Synakowski

MSE assess usefulness of |B| determination NOVA F. Levinton, H. Yuh, J. Foley

MSEperformance simulation of conventional

polarimetry approachPPPL S. Scott, B. Stratton

MSE optimization of optical design LLNLSteve Allen, J. Jayakumar, S. Lerner, M. Makowski,

C. Holcomb, N. Wong, E. Synakowski

LFS Reflectometerdetermine optimum frequency bands and

polarizationsUCLA

T. Peebles, E. Doyle, T. Rhodes, L. Schmitz, L. Zeng, S. Kubota, P. Gourdain, G. Wang

ECEinvestigate non-thermal issues, use of

oblique viewPPPL G. Taylor, P. Efthimion

ECE review reference designU. Texas-U. Md-

MITM. Austin, P. Phillips, R. Ellis, A. Hubbard, Bill Rowan

Divertor Interferometer develop conceptual design GA-UCLAT. Carlstrom, D. Brower, Rejean Boivin, M.

VonZeeland, B. Deng, W. Ding

RGA develop conceptual design ORNL W. Gardner, D. Hillis

Tang. Interfer./Polarimeter optimize reference design UCLA-GAD. Brower, T. Carlstrom, M. VonZeeland, Rejean

Boivin, W. Ding, B. Deng

First Mirror R&D model erosion/deposition on 1st mirrors ANL J. Brooks, J. P. Allain, A. Hassanein, M. Nieto

Neutronics Analysisbenchmark neutronics models for plug

integration using ATILLA UCLA-PPPL M. Youssef, R. Feder, R. Shaefer, M. Dagher

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Next Round of Studies

• Large procurements to design and fabricate US ITER diagnostics will begin in FY08.

• To advance front-end design and integration, there will be a second round of studies, beginning this Summer.

• Plan discussions over the next month regarding new design tasks and potential R&D areas.

– These will be documented as before in ‘Records of Discussion’.

• As designs become better defined, also plan to fund costing studies to improve confidence as Project Cost Baseline is established.

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Schedule/Milestones

• A prerequisite for major diagnostic design effort is the renegotiation of new procurement arrangements to resolve existing scope ambiguities and clarify stakeholder roles.

• Definition of mutually agreeable integration of front-end components within the plugs will facilitate many parallel detailed design efforts.

• FY2014 delivery of qualified port plugs is consistent with top level IO schedule

– Detailed plan will likely feature plug delivery phased over a multi-year period.

IO Activities (Near-Term) Need Date for 1st PPPrelim/Final DWG SharingPort Engineering Task ForceOngoing ITER Design ReviewITER Diagnostic Design ReviewIssuance of First US Procurement ArrangementCoordinate Integration Between DAs

CD-2 Baseline Target CD-4 Completion TargetUS Activities

Assessment Studies 1Assessment Studies 2First Major Instrument Procurement

Ex-cryostat Components fab dFirst Instrument to ITER

Front-end Components d

Diagnostic Modules dFirst Port Plug to ITER

Generic Structure d

PETF

design

FY06FY05

design

design

fab

fab

FY04

PETF

testdesign

R&Dtest

test

fab test

R&D

FY14FY13FY12FY07 FY10 FY11FY09FY08

complete integration