AFCI Reactor-Accelerator Coupling Experiments (RACE) Project
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Transcript of AFCI Reactor-Accelerator Coupling Experiments (RACE) Project
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AFCI Reactor-Accelerator AFCI Reactor-Accelerator Coupling Experiments Coupling Experiments
(RACE) Project(RACE) ProjectProf. Denis Beller Prof. Denis Beller
Project DirectorProject Director
Idaho State University Idaho State University (e-mail: [email protected])(e-mail: [email protected])
Eighth Information Exchange Meeting on Actinide and Eighth Information Exchange Meeting on Actinide and Fission Product Partitioning and TransmutationFission Product Partitioning and Transmutation
Nov. 11, 2004Nov. 11, 2004
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RACE ProjectRACE Project
Design, model, and conduct ADSS Design, model, and conduct ADSS experimentsexperiments
Predict and analyze subcritical Predict and analyze subcritical multiplication and source-driven transientsmultiplication and source-driven transients
Map source importance & flux in and Map source importance & flux in and around a variety of ADSSaround a variety of ADSS
Provide a bridge between MUSE and Provide a bridge between MUSE and TRADETRADE
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Idaho State University leads a Idaho State University leads a growing RACE consortiumgrowing RACE consortium
IAC RACE ADSS IAC RACE ADSS UT-Austin & Texas A&M UT-Austin & Texas A&M TRIGAs TRIGAs UNLV TRPUNLV TRP U of MichiganU of Michigan ANL-West ANL-West LANLLANL
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Driving neutron sources:Driving neutron sources:
MUSE DT-neutron sourceMUSE DT-neutron source» ~1.5x10~1.5x101010 n/s, 2.45 & 14.1 MeV n/s, 2.45 & 14.1 MeV
TRADE pTRADE p++ source will make about source will make about » 101015 15 n/s, up to 140 MeVn/s, up to 140 MeV
Quite a jump!Quite a jump! RACE linear electron accelerator: RACE linear electron accelerator: » Up to ~10Up to ~101313 n/s n/s» Intermediate energy: spallation-like Intermediate energy: spallation-like
spectrum plus small tail up to 30+ MeVspectrum plus small tail up to 30+ MeV
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ADSS Experiments ComparisonADSS Experiments Comparison
SystemSystem SourceSource Strength Strength (n/s)(n/s) PowerPower CostCost
MUSEMUSE DD & DTDD & DT ~10~101010 ZeroZero $60 M$60 M
RACERACE Electron Electron beambeam 5x105x101212 1-10 kW1-10 kWthth $2-3 M$2-3 M
TRADETRADE Proton Proton cyclotroncyclotron ~10~101515 200 kW200 kWthth $90 M?$90 M?
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RACE ADSS CharacteristicsRACE ADSS Characteristics
University
nominal power (kWth)
peak power (MWth)
target location fuel type
fuel compo-sition
fuel enrich-ment keff
ISU 0 0 center platesU-Al Alloy,
Al clad<20% 0.7-0.95
UT-Austin 1 1000 edge rods U-ZrH <20%~0.92 to
1.0
Tx A&M 1 10 1000edge,
graphite column
rodsU-ZrH "FLIP"
fuel70% up to 1.0
Tx A&M 2 10 1000 center rods U-ZrH <20% up to 1.0
Tx A&M 3 (LBE)
0 0 center rods U-ZrH <20%0.90 to 0.95?
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Tentative Experiment ScheduleTentative Experiment Schedule
ISU-IACISU-IAC» Design & licensing Design & licensing Aug ’03-Mar ’04Aug ’03-Mar ’04» ConstructionConstruction Feb-Apr ’04Feb-Apr ’04» ExperimentsExperiments Apr ’04-Jun ’05Apr ’04-Jun ’05
UT-Austin ExperimentsUT-Austin Experiments Spring ’05-?Spring ’05-?» TRIGA, otherTRIGA, other
Texas A&M ExperimentsTexas A&M Experiments Fall ’05-’07+Fall ’05-’07+» TRIGA, used fuel core, LBETRIGA, used fuel core, LBE Fall ‘07Fall ‘07
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RACE ProgressRACE Progress
Design studies completed at Texas A&M Design studies completed at Texas A&M and UTand UT» Fresh fuel and fresh reactor at UTFresh fuel and fresh reactor at UT» Texas A&M may build permanent ADSSTexas A&M may build permanent ADSS
Static and transient analyses completed at Static and transient analyses completed at U of MichU of Mich
New UNLV TRP project approvedNew UNLV TRP project approved Seven ADSS experiments at ISU-IACSeven ADSS experiments at ISU-IAC
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75% W, 25%Cu target for ISU 75% W, 25%Cu target for ISU RACE, 2 ¾” diameter x 3” longRACE, 2 ¾” diameter x 3” long
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Target with thermocouplesTarget with thermocouples
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Comparison of MCNPX flux and Mn Comparison of MCNPX flux and Mn Activation MeasurementsActivation Measurements
Normalized Mn activation and MCNPX flux for RACE-01 exposure experiment versus position on a simulated fuel plate
above the neutron-generating target and mini-tank
0.000
0.200
0.400
0.600
0.800
1.000
1.200
-20 -10 0 10 20
Mn activation
MCNPX flux
Near accelerator
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In June we installed a new systemIn June we installed a new system
Replaced acceleratorReplaced accelerator Large Al vesselLarge Al vessel Graphite reflectorGraphite reflector Water moderatorWater moderator
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Accelerator and “large” vesselAccelerator and “large” vessel
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RACE fuel trays and target inside RACE fuel trays and target inside the graphite reflectorthe graphite reflector
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Preliminary results:Preliminary results:Gold activation versus MCNPXGold activation versus MCNPX
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-30 -20 -10 0 10 20 30 40
Axial position
Normalized gold activation
MCNPX Gold Activiation (shifted)
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Time-dependent measurementTime-dependent measurementHe-3 Detector Response versus Time
1
10
100
1000
10000
100000
1000000
0 10 20 30 40 50
Time (ms)
Co
un
ts
08/16 10 Plates08/16 No fuel08/02 No DU08/02 DU
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ConclusionConclusion
ADSS Exp at ISU, UT, and Tx A&MADSS Exp at ISU, UT, and Tx A&M Now thru 2006 or beyondNow thru 2006 or beyond Design, modeling, and executionDesign, modeling, and execution Predict and measure subcritical Predict and measure subcritical
multiplication, source-driven transients, and multiplication, source-driven transients, and map source importancemap source importance
Recruit, educate and train studentsRecruit, educate and train students TransmutationTransmutation