IAEA Activities in the Area ofPartitioning and Transmutation
Alexander Stanculescu
Nuclear Energy Department
Nuclear Power Technology Development Section

IAEA
International Atomic Energy Agency

IAEA Activities• Implemented in collaboration by IAEA’s
Nuclear Power Technology Development
and Nuclear Fuel Cycle and Materials
Sections• Framework given by the Technical Working
Groups on Fast Reactors (TWG-FR) and on
Nuclear Fuel Cycle Options (TWG-NFCO)

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Technical Working Group on FastReactors (TWG-FR)• TWG-FR working tool to¾Promote exchange of information onnational and multi-national fast reactor andhybrid systems programs (e.g., ADS)
¾Stimulate and facilitate collaborative
research and development (CRPs)¾Coordinate activities with other Agency
projects (e.g., in Safety), and internationalorganizations (EC and OECD/NEA)
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Membership of the TWG-FR
Belarus, Brazil, China, France, Germany,India, Italy, Japan, Kazakhstan, Republicof Korea, Russia, Switzerland, United
Kingdom, and United States of America,
as well as the EU (EC), and OECD/NEA
Observers: Belgium, SwedenIAEA

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TWG-FR Annual Meetings• Last meeting hosted by China Instituteof Atomic Energy in Beijing, 15 – 19May 2006
• Next meeting will be hosted by Japan
Atomic Energy Agency (JAEA), in
Tsuruga/Kyoto, 14 – 18 May 2007

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Recent Accomplishments• Information exchange¾Theoretical and Experimental Studies ofHeavy Liquid Metal (HLM) Thermal
Hydraulics (IAEA-TECDOC-1520)
9Summarizes the state-of-the-art of present
Computational Fluid Dynamic (CFD) codes
9Reviews the current and planned experimental
HLM programs
9Identifies needs for future R&D activities¾IAEA/ICTP Workshop on Technology andApplications of Accelerator Driven Systems,Trieste, 17 – 28 October 2005
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Ongoing and Planned Activities• Collaborative R&D¾ Coordinated Research Project (CRP) on Studies ofAdvanced Reactor Technology Options for Effective
Incineration of Radioactive Waste
9 Comparative assessment of the transient behaviour ofadvanced transmutation systems, both critical and sub-critical
9 Benchmarks studies on critical liquid metal, and gas cooled
fast reactor, heavy liquid metal, and gas cooled ADS, criticaland sub-critical molten salt concepts, and fusion-fission
hybrid sub-critical systems
9 17 institutions in 13 Member States, and the EC (JRC)
participating
9 Results on molten salt benchmark presented at PHYSOR 2006
9 Ends 2006, final IAEA TECDOC expected end 2007

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Ongoing and Planned Activities¾ Coordinated Research Project (CRP) on Analytical andExperimental Benchmark Analyses of Accelerator Driven Systems(ADS)
9 Improve physics understanding of the coupling of external neutron
sources with sub-critical cores
9 Experimental backing of analytical benchmarks
9 Participants will apply integrated calculation schemes to perform
computational and experimental benchmark analyses
9 27 institutions in 18 Member States and two internationalorganizations participating
9 First stage benchmark problems: (i) YALINA-Booster; (ii) spallation
target parametric studies with experimental validation; (iii) spallation
source efficiency and energy dependence; (iv) analytical andnumerical benchmarking of methods and codes for ADS kinetics; (v)ADS concepts; (vi) sub-critical experiments; (vii) photonuclear basedtransmutation benchmarks; (viii) ADS performance
9 CRP presented at PHYSOR 2006 (3 papers)
9 Ends 2009IAEA

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Description of Experimental Benchmarks (1/5)
YALINA-Booster Facility (JIPNR, Minsk, Belarus)(1) d-accelerator; (2) neutron producing Ti-d (or Ti-t)target(3) sub-critical assembly; (4) gamma-spectrometer
134
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Description of Experimental Benchmarks (2/5)
YALINA-Booster Facility
XY-cross section (atZ=0) of the fast(“booster”) zone and thebuffer zone

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Description of Experimental Benchmarks (3/5)• YALINA-Booster benchmark analyses¾ Axial distributions of 3He(n,p), 235U(n,f), and 115In(n,γ)¾ Radial 115In(n,γ) reaction rate distribution¾ 197Au(n,γ) and 55Mn(n,γ) reaction rates in mid-plane
positions in the “booster” and in the thermal zone
¾ Neutron spectrum¾ Neutron flux vs. time
¾ Effective and source multiplication factors (keff and ks),
mean neutron generation time (Λ), and effective delayed
neutron fraction (βeff)¾ Feasibility of sub-critical experiments using lowenriched uranium
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Description of Experimental Benchmarks (4/5)• Spallation Source Efficiency andEnergy Dependence (CERNexperiments)¾FEAT (energy dependence, sourceefficiency)¾TARC (neutron fluence, 99Tctransmutation rates)• Spallation Target Characteristics¾Thin and thick target experiments
performed at ITEP (Moscow)
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Description of Experimental Benchmarks (5/5)• Sub-critical Experiments¾Kyoto University’s Critical Assembly(KUCA) benchmark¾Planned coupling of a sub-criticalconfiguration of the core of the Zero
Power Facility IPEN-MB-01 at IPEN (SãoPaulo) with a compact neutron generator¾Photonuclear based transmutation
benchmark (neutron source facility
planned at the Kharkov Institute for
Theoretical Physics, Ukraine)
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Description of Analytical Benchmarks (1/2)• ADS Dynamics Problems¾Exact analytical solutions¾Highly accurate numerical solutions• ADS Concepts¾MYRRHA¾JAEA ADS concept

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Description of Analytical Benchmarks (2/2)
MYRRHA (52 MWTFISiC (He)
config.)
MOX FA

JAEA ADS Core Layout

U-free MA

T91 (LBE)
T91 (He)

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Spallation target (7)LBE reflector (48)

LBE buffer (12)SUS shield (54)

Inner core (66)

B4C shield (126)

Outer core (66)

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Ongoing and Planned Activities• IAEA Workshop (School) on Physics, Technology andApplications of Accelerator Driven Systems (ADS), incollaboration with ICTP, Trieste, planned forAugust/September 2007

¾ Main objectives: formation and training¾ Lectures, tutorials, computer exercises¾ Participants mostly from Eastern Europe and Asia, but also
participation from Africa, Western Europe, and South America¾ Syllabus: accelerator technology, nuclear data, ADS concepts(design), simulation methods, ADS safety, fuel cycle issues¾ More information soon available on
http://www.iaea.org/inis/aws/fnss/meetings/index.html#plannedIAEA

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Ongoing and Planned Activities• ADS Research and Development Database¾ADS related R&D programs: experimental facilities(existing and planned) and programs, methods
and data development, design studies, …
¾Web based, operational
http://www-adsdb.iaea.org/index.cfm¾Data collection started, contributions solicited
9Request login ID and PW from a.stanculescu@iaea.org
9Data can then be provided on-line, intuitive interface

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For more information, please visit
http://www.iaea.org/inis/aws/fnss/

Thank You !

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