Transcript ITER-Relevant Diagnostic Activity in the US

ITER-Relevant Diagnostic Activity in the US
Presented by David Johnson
US ITER Project Activities
–Near-term priorities and plans
–US diagnostic packages
–Ongoing neutronics work and plans
US Burning Plasma Organization
ITER-relevant diagnostic development on
DIII-D (separate presentation prepared
by R. Boivin)
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
US ITER Project Has Started
•
In March, PPPL was been selected as the lead institution for diagnostic
procurement and David Johnson was selected as Diagnostics Team
Leader.
•
Since then there have been extensive discussions with diagnostics
experts at 4 locations in the US focused on defining the scope of short
term studies.
•
Will fund 15 - 20 studies of 2-6 man-months each. Some will start in
May.
•
More extensive contracts for detailed design work will come later,
hopefully next year, when US responsibilities are better defined and
funding increases.
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
US ITER Project Diagnostic Packages
WBS
Instrumentation Packages
1.5.3.1
Upper IR/Visible Cameras
1.5.3.2
Low Field Side Reflectometry
1.5.3.3
Motional S tark Effect
1.5.3.4
Electron Cyc lotron Emission
1.5.3.5
Divertor Int erferometer
1.5.3.10
Toroidal I nterferometer/Polarimeter
1.5.3.6
Residual Gas Analyz er
1.5.3.7
Port Packages
Upper Ports (U5, U17)
1.5.3.8
Equatorial P orts (E3, E9)
1.5.3.9
Lower Port Structure s (L8)
1.5.3.11
Diagnostic Management
1.5.3.12
US Port Test Facility
US ITER Diagnostics
Scope
Packages include ‘front-end’ vi ewing
optics, relay o ptics or waveguides in
the ports, along with additional relay
systems to bring signals to diagnostic
hall, and source and detector hardware
in th e diagnostic hall. Some have
viewing systems in ports provided by
other parties. Package includes
oversight o f testing on ports prior to
shipment t o IT ER
Requirements not well d efined
Packages incl ude design, fa brication,
assembly and testing of US port plugs
including integration of diagnostic
components into t he plugs.
Oversight a nd coordination
Chamber, pumping, bake-out sys tems
and operations needed to test US ports
and diagnostic ‘front -end’ components.
ITPA10 Moscow
April 13, 2006
Near Term Priorities
1. Better definition of ‘front-end’ designs
• understand and optimize front-end designs
• examine trade-offs in expanded capability and alternate approaches
• support ‘Port Plug Engineering Taskforce’, particularly in areas that affect
US systems
2. Develop needed infrastructure
• CATIA CAD models
• neutronics capability
• optical designs
• performance simulation codes
3. Development of R&D plans
• both in-vessel and ex-vessel components
• prototyping
• contribute to generic R&D work on 1st mirrors, shutters, and other “farforward” assemblies
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
Near Term US Neutronics Plans
Three ongoing approaches for neutronics analysis
• Efficient translation from CAD to format compatible with input to MCNP
• Raytheon - TOPACT  being pursued by LLNL (Jeff Latkowski)
• Will use US E3 port labyrinth as example
• New version of MCNP that “runs within CAD elements”
• MCNP-CGM  M. Sawan - Univ. of Wisconsin
• Ready to try on simplified port plug (E3) in mid-summer
• ATTILA discreet ordinates code (Transpire - US Company)
• Code “verification” plan developed by IT to be based on 3
experimental benchmarks
• US has agreed (Mahmoud Youssef - UCLA) to perform ATTILA
benchmark runs
• To be reported at meeting organized by Gianfranco Federici at
Madison, Wisconsin July 24-26
• ATTILA runs with simplified E3 plug also planned prior to this
meeting as a design example (R. Feder - PPPL)
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
Intensive Neutronics effort is underway: Direct conversion of
CAD to radiation transport grid
Complex step
CATIA-CAD
Pro/E-CAD
• LLNL has converted ITER
CATIA CAD to Pro/E for
local ease of use and to
enable TopAct conversion
Step File
TopAct- GRID
•TopAct speeds the
process in moving from
CAD to neutronics
Neutronics
Well in hand
MCNP/TART
• Contract in place with
Raytheon for them to
complete the conversion
from Pro/E to Monte Carlo
•LLNL will become beta
test user in FY06
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
We are applying TopAct Grid generator to the design of
ITER's MSE diagnostic
06 Accomplishment- Neutronics calculations
• Monte Carlo models (both TART and MCNP) have been completed for
much of the MSE diagnostic
• TopAct is beginning to deliver, and we now understand its limitations
and the appropriate work-arounds
Creating the ability to rapidly assess the radiation transport effects of
design changes will make significant contributions to ITER and other
projects, a capability developed at LLNL.
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006
US ITER Diagnostics
http://burningplasma.org/
ITPA10 Moscow
April 13, 2006
USBPO Diagnostic Activities
1. Diagnostic Topical Group Coordinators recently named Réjean Boivin, Steve Allen, Jim Terry
2. Leaders are discussing possible Task Groups that might support US project
responsibilities:
• Microwave systems
- ECE and Reflectometry
• IR/FIR systems
- Toroidal and Divertor Interferometry
• Imaging systems
- Upper Visible/IR Cameras
• Active spectroscopy
- MSE
3. Possible Diagnostic Task Group Roles (Need to draft charter)
• Provide forum of ideas relating to US systems.
• Comment on physics goals and related measurement requirements.
• Organize workshops for presentation and critique of upcoming design
studies. Eventually support internal review of detailed designs.
• Provide experts for ITER diagnostic design reviews.
• Address some types of ‘action items’ from USBPO or USIPO.
• Advise US ITER Project on diagnostic issues
US ITER Diagnostics
ITPA10 Moscow
April 13, 2006