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Diagnostics PPPL
US ITER Diagnostics
David JohnsonDiagnostics Team Leader
November 15, 2006
US ITER Project
Vendor Fair
Oak Ridge, TN
Diagnostics PPPL2
Outline
US Scope
Port Plugs
Instruments
Schedule
Diagnostics PPPL3
US Diagnostic Packages
Design maturity is conceptual.
Diagnostics PPPL4
Scope - US Port Plugs
Upper Plugs (U5, U17)(4.5m long, ~25T in-vessel)
Equatorial Plugs (E3, E9)(2.2m high, ~50T in-vessel)
Divertor Side Panelsand Back Boxes (L8)
• Plugs provide– Vacuum seal, radiation shielding– Cooling water and support for blanket
shield modules– Support and access for diagnostics
• Plugs consist of– Generic structural components
common to all of that type– Custom diagnostic shield modules
Diagnostics PPPL5
Upper Visible/IR Cameras (6 in upper ports)
Within Cryostat Outside CryostatEndoscope heads (aspheric)
Metal mirrors
Shutters and actuators
Refractive optics
Visible and IR optics
High resolution visible and IR cameras
Fast visible and IR cameras
Image capture and analysis software
Diagnostics PPPL6
Main Plasma Reflectometer (LFS)
Differential movements taken up in waveguide joints
Within Cryostat Outside CryostatHorn antenna/tapers
Vacuum-compatible corrugated waveguide
Compliant WG mitre-bends, sleeves
Microwave test equipment
Standard aluminum corrugated waveguide
wave sources (~100 mW, 30 GHz BW, 15-230 GHz)
Tracking LOs, mixer/detectors
IF amplifiers and components, video amplifiers
Digital controllers, digitizers, D/As, computers
Diagnostics PPPL7
Electron Cyclotron Emission Diagnostic
Within Cryostat Outside CryostatEllipsoidal metal mirrors
Vacuum-compatible corrugated waveguide
Compliant WG miter-bends, sleeves
In-situ hot calibration sources, shutters
Standard aluminum corrugated waveguide
Mitre-bends, polarization splitters
Multichannel (40-50) radiometers (120-350 GHz)
Michelson interferometers (70-1000 GHz)
Diagnostics PPPL8
Heating Beam
Plan view of edge MSE sightlines Port E3
Motional Stark Effect Polarimeter
Within Cryostat Outside Cryostat
Metal aspheric mirrors
Shutters and actuators
In-situ calibration sources
In-situ mirror cleaning system
Fiber optic bundles (in heating jacket)
Photoelastic modulators
High-resolution spectrometers
Narrow-band spectral filters
APD detectors, preamps, digitizers
Diagnostics PPPL9
Toroidal Interferometer/Polarimeter
Within Cryostat Outside CryostatMetal mirror-based beam delivery optics
Shutter and actuator
Metal retroreflectors
Real-time beam alignment system
Two-color lasers in IR/FIR
([email protected]/9.0m, [email protected]/47.6m)
IR/FIR detectors, polarization modulators
IR/FIR optics (beam splitters, wave plates, etc)
Diagnostics PPPL10
Divertor Interferometer
Within Cryostat Outside CryostatMirror-based beam delivery optics
IR/FIR waveguide?
Metal retroreflectors?
Real-time beam alignment system
Two color lasers in IR/FIR
([email protected]/9.0m, [email protected]/47.6m)
IR/FIR detectors, modulators
IR/FIR optics (beam splitters, wave plates, etc)
Diagnostics PPPL11
Residual Gas Analyzers
Pumping duct(1 of 4)
Within Cryostat Outside CryostatRGA sensor heads with radiation-hardened electronics, magnetic shields
Penning gauges with optical fiber and high-resolution spectrometers, optical detectors
Turbomolecular pumps, vacuum components, calibrated leaks
Diagnostics PPPL12
Schedule/Responsibilities
Ex-cryostat Components dINSTRUMENTS assessment studies to ITER
Front-end Components d
negotiate PP complete integration
Diagnostic Modules dPORT PLUGS port engineering TF to ITER
Generic Structure d
FY14FY13FY12FY07 FY10 FY11FY09FY08
fab test
design fab
designR&D
testdesign
design fab
fab
test
R&Dtest
• A prerequisite for major diagnostic design effort is the renegotiation of the PP’s to resolve existing scope ambiguities and clarify stakeholder roles/responsibilities and permitting detailed design to begin.
• In the present plan, most procurements would be made during the fabrication phase from FY10 - FY12.
• As partner lab responsible for diagnostics, PPPL will subcontract with other experienced institutions to provide the instruments.
• PPPL will design the port plugs, will integrate the ‘front-ends’ from multiple systems, and will oversee the fabrication, assembly and testing of the plugs.
