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Overview of the
Safety and Tritium Applied
Research (STAR) Facility
Phil Sharpe
Fusion Safety Program
Idaho National Laboratory, USA
HAPL Program Meeting
ORNL
21-22 March 2006
Fusion Safety Program
STAR Mission and Research
• Provide laboratory infrastructure to study tritium science and technology
issues associated with the development of safe and environmentally friendly
fusion energy
• Designated a National User Facility
• Research thrust areas
– Plasma-material interactions of PFC materials with energetic tritium and
deuterium ions
– Fusion safety: chemical reactivity, activation product mobilization and
dust/debris characterization for PFC materials; tritium behavior in fusion
systems (in-vessel source term)
– Molten salts and fusion liquids for tritium breeder and coolant applications
– Fission reactor tritium production permeation issues; AGR fuel tritium
retention and release studies
– Tritium plant and fuel cycle issues for MFE and IFE
Slide 1
Fusion Safety Program
STAR Floor-plan Layout
Glovebox
Chemical reactivity
TCS Tritium Tritium experiment
SAS Stack monitor
D ion implantation
experiment
Glovebox exhaust
manifold
Tritium Plasma Exp Flibe preparation
purification & testing
Flibe-tritium
experiment Flibe Salt
2Lif-BeF2
Flibe-corrosion 15,000 Ci tritium limit
15,000 Ci tritium limit
experiment Segregation of operations
Segregation of operations/ventilation
Once-through room ventilation
Gloveboxes and hoods
Gloveboxes and hoods
Tritium cleanup system
Tritium cleanup system (TCS)
Tritium storage and assay system (SAS)
Once-through room ventilation
Slide 2
Fusion Safety Program
Key systems in STAR
Molten Salt Tritium
Behavior Experiment Tritium
Tritium Plasma Experiment Storage and
and Enclosure Assay
System
Steam and air
Molten Salt Preparation, chemical reactivity
Tritium Cleanup System Purification, and REDOX test apparatus
Experiments Slide 3
Fusion Safety Program
Star Tritium Storage and Assay System
Handles reception, distribution, and accountability of tritium inventory
SAS glovebox Setup SAS manifold and vacuum pumps
Slide 4
Fusion Safety Program
STAR Tritium Cleanup System (TCS)
Removes tritium in process gases from glovebox atmospheres and
experiment systems.
Outlet IC Inlet
Inlet sample loop
Condenser Control
Heat exchanger
MS water
Mole sieve bed
Blower
Catalyst beds
Slide 5
Fusion Safety Program
Highlights of Recent Accomplishments
• Useable tritium inventory now 1300 Ci
– 300 Ci in equimolar H2:D2:T2 calibration standard
– 1000 Ci T2 available for experiments
– shipments from SRS limited to 1000 Ci with standard
TYPE-A shipping container
Shipping Vessel (1 available)
Slide 6
Fusion Safety Program
Highlights of Recent Accomplishments, cont.
• TPE Operations Initiated
– plasma characteristics testing and diagnostics installation
are present focus
peaks.out 10:56:12 AM 1/2/06
REGION 1 REGION 2
Filament Heat-up Plasma Operation
10-3 (0-250 Amps in 50 Amp increments) (4 periods of testing)
10-4
Pressure (Torr)
10-5
10-6
10-7
H2 N2
H2O O2
10-8
3000 4000 5000
Time (sec.)
6000 7000 8000
low intensity plasma (<0.05 A/cm 2) moderate intensity plasma (~ 0.2 A/cm 2)
chamber gas species during first plasma
– materials testing with D2 to start early April (W and Mo)
– T2 components upgrade and tests to be completed in June,
including plasma operation
– materials testing with D2/T2 to start mid-July (W and Mo, Be testing
will start in September)
Slide 7
Fusion Safety Program
STAR is Ready for Operation of Tritium Experiments
Plans for the CY 2006:
• Molten Salt Tritium Permeation Experiment:
– 100 to 300 Ci transferred as D2/T2 in vessel loaded with SAS
– experiment will be setup in glovebox used for previous permeation
studies
– diagnostics to include QMS, gas chromatograph, on-line ion chamber,
and catalytic recovery
– effluent will exhaust via facility stack
• TPE Tritium Experiments:
– 700 to 900 Ci transferred as T2 in vessel loaded with SAS
– further blending in TPE for desired T ion flux
– TDS measurements following plasma exposure will indicate retained D
and T
– local U-Bed capture in TPE; effluent routed to TCS for complete
cleanup
Slide 8
