Ceramic waste forms for the specific immobilization of radionuclides: from synthesis to long-term behavior

Nicolas Dacheux¹, Stephanie Szenknect², Renaud Podor³, Nicolas Clavier³

1: ICSM, University of Montpellier, France; 2: ICSM, CEA, France; 3: ICSM, CNRS, France

Evaluation of surrogate-models for the incorporation of tetravalent actinides in monazite- and zircon-type phases for long-term disposal

Theresa Lender¹, Luiza Braga Ferreira dos Santos², Nina Huittinen², Kristina Kvashnina², Elena Bazarkina², Peter Appel³, Lars Peters¹

1: Institute of Crystallography, Rheinisch–Westfälische Technische Hochschule Aachen University, Jägerstr. 17–19, 52066 Aachen; 2: Institute of Resource Ecology, Helmholtz–Zentrum Dresden–Rossendorf, Bautzner Landstr. 400, 01328 Dresden; 3: Institute of Geosciences, Christian-Albrechts-University Kiel, Ludewig-Meyn-Straße 10, 24118 Kiel

Structural changes in Ln-Monazite single crystals under swift heavy ion irradiation

Julien Marquardt¹, Theresa Lender², Lkhamsuren Bayarjargal¹, Eiken Haussühl¹, Christina Trautmann³, Lars Peters², Björn Winkler¹

1: Goethe Universität Frankfurt; 2: RWTH Aachen; 3: GSI Hemlholtz Centre for Heavy Ion Reseach Dresden

Structural analyses of heavy-ion irradiated monazites

Nina Huittinen^1,2, Sara Gilson¹, Andrey Bukaemskiy³, Gabriel Murphy³, Julien Marquardt⁴, Theresa Lender⁵, Holger Lippold¹, Volodymyr Svitlyk¹, Jonas Nießen⁵, Christoph Hennig¹, Shavkat Akhmadaliev¹, Selina Richter¹, Jenna Poonoosamy³, Christina Trautmann⁶

1: Helmholtz-Zentrum Dresden-Rossendorf, Germany; 2: Freie Universität Berlin, Germany; 3: Forschungszentrum Jülich, Germany; 4: Johann Wolfgang Goethe-Universität Frankfurt, Germany; 5: RWTH Aachen University, Germany; 6: GSI Helmholtzzentrum für Schwerionenforschung

TAKING NUCLEAR WASTE TO EXTREMES TO DESIGN SAFE UNDERGROUND REPOSITORIES

Volodymyr Svitlyk^1,2, Stephan Weiss¹, Christoph Hennig^1,2

1: Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, Dresden, Germany; 2: Rossendorf Beamline (BM20), European Synchrotron Radiation Facility, Grenoble, France

Unravelling the Chemistries and Structural Properties of Cr/Mn/V/Fe-doped UO2 (Spent) Nuclear Fuel Materials

Gabriel Murphy¹, Julien Marquardt², Philip Kegler¹, Robert Gericke³, Sara Gilson³, Martina Klinkenberg¹, Andrey Bukaemskiy¹, Elena Bazarkina³, Andre Rossberg³, Kristina Kvashnina³, Volodymyr Svitlyk³, Christoph Hennig³, Peter Kaden³, Theresa Lender⁴, Nina Huittinen^3,5

1: Forschungszentrum Juelich GmbH, Germany; 2: Goethe-Universität Frankfurt; 3: Helmholtz-Zentrum Dresden-Rossendorf; 4: RWTH Aachen University; 5: Freie Universität Berlin

Spectroscopy and diffraction investigations of cerium/uranium doped zirconia solid solutions

Luiza Braga Ferreira dos Santos¹, Volodymyr Svitlyk¹, Selina Richter¹, Christoph Hennig¹, Javier Gaona Martinez², Nina Huittinen^1,3

1: Helmholtz-Zentrum Dresden-Rossendorf, Germany; 2: Karlsruhe Institute of Technology, Germany; 3: Freie Universität Berlin, Germany

Laser induced luminescence imaging: Microstructural-Chemical Analysis for Nuclear Materials

John McCloy, Sam Karcher, Brooke Downing

Washington State University, United States of America

Positron Annihilation to Investigate Nuclear Materials

Marc Herbert Weber

Washington State University, United States of America

Use of High-Speed Atomic Force Microscopy and Interferometry as Experimental Techniques for In-situ Aqueous Corrosion Monitoring

Lewis Jackson

University of Huddersfield, United Kingdom

Corrosion Under Controlled and Natural Conditions and the Impact of Radiation Damage.

Anamul Haq Mir

University of Huddersfield, United Kingdom

Advances in off-gas management and control for reprocessing and waste treatment facilities

Josef Matyas

Pacific Northwest National Laboratory, United States of America

Effect of Organic Degradation Products on the Migration Behaviour of Radionuclides in Cementitious Materials

Naila Ait-Mouheb¹, Guido Deissmann¹, Pierre Henocq², Nathalie Macé³, Dirk Bosbach¹

1: Institute of Energy and Climate Research (IEK-6): Nuclear Waste Management, Forschungszentrum Jülich GmbH, Germany; 2: Research and Development Division, Andra, 1-7 Rue Jean Monnet, Parc de la Croix Blanche, 92298 Chatenay-Malabry Cedex, France; 3: Université Paris-Saclay, CEA, Service de Physico-Chimie, 91191, Gif-sur-Yvette, France

Effects of nuclide concentration and leachant type on the leaching behavior of Cs, Sr, and Co

Hyeongjin Byeon, Jaeyeong Park

Department of Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Ulsan, 44919, Republic of Korea

Incorporation of Cs, Sr, and Eu into copper slag inorganic polymers: matrix characteristics and leaching behavior

E. D. Mooren^1,2, W. Bonani², S. Van Winckel², A. Bulgheroni², J. Van Der Sande³, T. Hertel³, G. Beersaerts³, S. Schreurs¹, K. Popa², R. J. M. Konings², W. Schroeyers¹

1: Hasselt University, CMK, Nuclear Technological Centre (NuTeC), Faculty of Engineering Technology, Agoralaan, Gebouw H, 3590 Diepenbeek, Belgium; 2: European Commission, Joint Research Centre, P.O. Box 2340, D-76125 Karlsruhe, Germany; 3: KU Leuven, Department of Materials Engineering, Kasteelpark Arenberg 44, 3001 Leuven, Belgium

Sorption Behavior of Cesium ions to Calcium Silicate Hydrate Containing Magnesium as a Secondary Mineral

Tsugumi Seki, Ryota Oasa, Taiji Chida, Yuichi Niibori

Department of Quantum Science and Engineering, Graduate School of Engineering, Tohoku University, Japan

Experimental Investigations on Smectite to Illite Transformation

Amanda Sanchez, Melissa Mills, Yifeng Wang, Tuan Ho

Sandia National Laboratories, United States of America

Improved Salt Fuel Density of a Zero Power Reactor Fuel: Towards Zero Nuclear Waste

Suneela Sardar, Claude Degueldre, Sarah Green

Lancaster University, United Kingdom

Considerations on the corrosion of canisters for SNF and HLW in crystalline host rock in Germany – regulatory framework, state of knowledgd future perspectivese an

Thimo Philipp, Christiane Stephan-Scherb, Torben Weyand, Jens Eckel, Thorsten Faß, Lena Maerten, Christoph Borkel

Federal Office for the Safety of Nuclear Waste Management (BASE), Germany

Development of regulatory requirements for the deep geological disposal in South Korea

Jinmo Ahn, Jungjin Kim, Chan Woo Jeong, Sangmyeon Ahn, Park Sangsu, Sang-Ho Lee

Korea Institute of Nuclear Safety, Daejeon, Republic of Korea

Evaluation of the deep-seated landslides to affect the shallow land disposal site in marine terraces

Taro Shimada¹, Toshihisa Sasaki², Shizuka Takai¹, Seiji Takeda¹

1: Japan Atomic Energy Agency, Japan; 2: Visible Information Center

Thermal Decomposition of Uranyl Nitrate Compounds Derived from Aqueous and Ethanolic Solutions

Shannon Kimberly Potts¹, Émeline Louis^1,2, Giuseppe Modolo¹, Martina Klinkenberg¹, Philip Kegler¹, Irmgard Niemeyer¹, Dirk Bosbach¹, Stefan Neumeier¹

1: 1Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management (IEK-6), 52428 Jülich, Germany; 2: National School of Chemistry Montpellier, 34090 Montpellier, France

Fundamental investigations of actinide immobilization by incorporation into solid phases relevant for final disposal

Nina Huittinen^1,2, Luiza Braga Ferreira dos Santos¹, Sara Gilson¹, Christoph Hennig¹, Theresa Lender³, Julien Marquardt⁴, Gabriel Murphy⁵, Jonas Nießen³, Lars Peters³, Selina Richter¹, Volodymyr Svitlyk¹, Thorsten Tonnesen³, Björn Winkler⁴

1: Helmholtz-Zentrum Dresden-Rossendorf, Germany; 2: Freie Universität Berlin, Germany; 3: RWTH Aachen University, Germany; 4: Johann Wolfgang Goethe-Universität Frankfurt, Germany; 5: Forschungszentrum Jülich, Germany

Development of Advanced Ceramic Wasteforms for Separated Actinide Disposition

Lewis Blackburn, Amber Mason, Laura Gardner, Luke Townsend, Claire Corkhill

University of Sheffield, United Kingdom

Structural changes in Ln-Monazite single crystals under swift heavy ion irradiation

Julien Marquardt¹, Theresa Lender², Lkhamsuren Bayarjargal¹, Eiken Haussühl¹, Christina Trautmann³, Lars Peters², Björn Winkler¹

1: Goethe Universität Frankfurt; 2: RWTH Aachen; 3: GSI Hemlholtz Centre for Heavy Ion Reseach Dresden

Evaluation of surrogate-models for the incorporation of tetravalent actinides in monazite- and zircon-type phases for long-term disposal

Theresa Lender¹, Luiza Braga Ferreira dos Santos², Nina Huittinen², Kristina Kvashnina², Elena Bazarkina², Peter Appel³, Lars Peters¹

1: Institute of Crystallography, Rheinisch–Westfälische Technische Hochschule Aachen University, Jägerstr. 17–19, 52066 Aachen; 2: Institute of Resource Ecology, Helmholtz–Zentrum Dresden–Rossendorf, Bautzner Landstr. 400, 01328 Dresden; 3: Institute of Geosciences, Christian-Albrechts-University Kiel, Ludewig-Meyn-Straße 10, 24118 Kiel

Thermal and Radiation Stability of (Zr0.95,241Am0.05)1-xNdxO2-x0.5 Phases: Updates from the RISE-241 ActUsLab JRC Project

Nina Huittinen^1,2, Karin Popa³, Valu Octavian³, Jean-Yves Colle³, Olaf Walter³, Gabriel Murphy⁴

1: Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; 2: Freie Universität Berlin, Berlin, Germany; 3: European Commission, Joint Research Centre, Karlsruhe, Germany; 4: Forschungszentrum Juelich GmbH, Germany

Spectroscopy and diffraction investigations of cerium/uranium doped zirconia solid solutions

Luiza Braga Ferreira dos Santos¹, Volodymyr Svitlyk¹, Selina Richter¹, Christoph Hennig¹, Javier Gaona Martinez², Nina Huittinen^1,3

1: Helmholtz-Zentrum Dresden-Rossendorf, Germany; 2: Karlsruhe Institute of Technology, Germany; 3: Freie Universität Berlin, Germany

Determination of Mo-93 Inventory in Irradiated BWR Tie Plate Using Triple Quadrupole ICP-MS

Shingo Tanaka¹, Naoki Tezuka², Toshinori Taniuchi³, Hiroyoshi Ueda¹, Tomofumi Sakuragi¹

1: Radioactive Waste Management Funding and Research Center; 2: MHI Nuclear Development Corporation; 3: Mitsubishi Heavy Industries, Ltd.

Study on the mixed oxide high-level-waste glass: Optimization of waste loading and impact on repository footprint by blending spent UO2 fuels

Miki Harigai¹, Tomofumi Sakuragi¹, Ryo Hamada¹, Hidekazu Asano¹, Toshiro Oniki², Ryosuke Ito²

1: Radioactive Waste Management Funding and Research Center, Japan; 2: IHI Corporation

Advanced Non-synchrotron X-ray Techniques for Nuclear Waste Glass Characterization

John M. Bussey^1,2, Marc H. Weber¹, Dan Mihai Cenda³, Bertrand Faure³, Scott W. Barton^3,4, Sam E. Karcher^1,2, Liane M. Moreau^2,5, John S. McCloy^1,2,5

1: Institute of Materials Research, Washington State University, Pullman, Washington 99164, USA; 2: School of Mechanical and Materials Engineering, Washington State University, Pullman, WA, 99163, USA; 3: Xenocs SAS, 1-3 Allée du Nanometre, 38000, Grenoble, France; 4: Xenocs Inc, 4 Open Square Way, Holyoke, Massachusetts 01040, USA; 5: Department of Chemistry, Washington State University, Pullman, Washington 99164, USA

Glass alteration in complex natural environments: results from the Ballidon long-term burial experiment

Clare L Thorpe, Garry Manifold, Stuart Creasey-Gray, Rachel Crawford, Claire L Corkhill, Russell J Hand

University of Sheffield, United Kingdom

Nuclear waste glasses: flow under beta-particle and electron beam irradiation

Michael Ojovan

Imperial College London, United Kingdom

Simultaneous removal of cesium and strontium ions by combining clinoptilolite ion exchange and BaSO4 co-precipitation

Oguzhan Kivan¹, Muhammad Yusuf^1,2, David Harbottle¹, Timothy N. Hunter¹

1: School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, U.K.; 2: Research Centre for Nuclear Fuel Cycle and Radioactive Waste Technology (PRTDBBNLR), Research Organization for Nuclear Energy, National Research and Innovation Agency (BRIN), South Tangerang, 15314, Indonesia

Estimation of radionuclide migration considering sorption to suspended particles and soil near spring water points in a coastal zone

Takuma Sawaguchi¹, Kazuji Miwa^1,2, Taro Shimada¹, Seiji Takeda¹

1: Japan Atomic Energy Agency, Japan; 2: Japan Radioisotope Association

Dynamic Behavior of Sorption of Europium onto Biotite Flakes under the Condition of Saline Groundwater

Taiji Chida, Tsugumi Seki, Yuto Watanabe, Yuichi Niibori

Department of Quantum Science and Engineering, Graduate School of Engineering, Tohoku University

Effect of Organic Degradation Products on the Migration Behaviour of Radionuclides in Cementitious Materials

Naila Ait-Mouheb¹, Guido Deissmann¹, Pierre Henocq², Nathalie Macé³, Dirk Bosbach¹

1: Institute of Energy and Climate Research (IEK-6): Nuclear Waste Management, Forschungszentrum Jülich GmbH, Germany; 2: Research and Development Division, Andra, 1-7 Rue Jean Monnet, Parc de la Croix Blanche, 92298 Chatenay-Malabry Cedex, France; 3: Université Paris-Saclay, CEA, Service de Physico-Chimie, 91191, Gif-sur-Yvette, France

Development of a Thermodynamic Model for Swelling Stress of Bentonite: Measurements of Thermodynamic Data of Water in Na-Bentonite

Haruo Sato

Okayama University, Japan

Investigation of Kinetics and Mechanisms of Metallic Beryllium Corrosion for the Management of Radioactive Wastes

Andrey Bukaemskiy¹, S. Caes², Giuseppe Modolo¹, Guido Deissmann¹, Dirk Bosbach¹

1: Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research – Nuclear Waste Management (IEK-6), 52428 Jülich, Germany; 2: Belgian Nuclear Research Centre (SCK CEN), Institute for Sustainable Waste & Decommissioning, Boeretang 200, B-2400 Mol, Belgium