Name: Joint TecRad - RULET Autumn School on Technetium and other Fission Products
Start: 2025-11-24T12:00:00+01:00
End: 2025-11-27T15:45:00+01:00
Location: HZDR

Joint TecRad - RULET Autumn School on Technetium and other Fission Products

from Monday 24 November 2025 (12:00) to Thursday 27 November 2025 (15:45)

Monday 24 November 2025

12:00 Get together
Get together
12:00 - 13:00
Room: 114/202

13:00 Welcome
Welcome
13:00 - 13:10
Room: 114/202
13:10 The necessity of developing methodologies to monitor fission products with exotic oxidation states - Natalia Mayordomo Herranz (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
The necessity of developing methodologies to monitor fission products with exotic oxidation states
- Natalia Mayordomo Herranz (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
13:10 - 13:50
Room: 114/202
13:50 Site Selection, Safety Analyses and their legal framework – where does Tc come into play? - Christoph Borkel (BASE)
Site Selection, Safety Analyses and their legal framework – where does Tc come into play?
- Christoph Borkel (BASE)
13:50 - 14:30
Room: 114/202
14:30 Coffee Break
Coffee Break
14:30 - 14:50
Room: 114/202
14:50 Technetium - The Unknown Center of the Periodic Table - Erik Strub (University of Cologne)
Technetium - The Unknown Center of the Periodic Table
- Erik Strub (University of Cologne)
14:50 - 15:30
Room: 114/202
15:30 Comprehensive insights into material degradation characteristics by a multi-analytical approach on different length scales - Christiane Stephan-Scherb (Martin-Luther-Universität Halle-Wittenberg)
Comprehensive insights into material degradation characteristics by a multi-analytical approach on different length scales
- Christiane Stephan-Scherb (Martin-Luther-Universität Halle-Wittenberg)
15:30 - 16:10
Room: 114/202
16:10 Revisiting Technetium-99 Immobilization: Anoxic Remobilization Pathways Driven by Redox Active Geochemical Substrates - Vasileios Anagnostopoulus (University of Central Florida)
Revisiting Technetium-99 Immobilization: Anoxic Remobilization Pathways Driven by Redox Active Geochemical Substrates
- Vasileios Anagnostopoulus (University of Central Florida)
16:10 - 16:50
Room: 114/202
16:50 Coffee Break
Coffee Break
16:50 - 17:10
Room: 114/202
17:10 Career Panel Discussion - Jenna Poonoosamy (Forschungszentrum Jülich) Diana Rodríguez Hernandez (ROTOP Pharmaka GmbH) Christoph Borkel (BASE) Silvia Stumpf (Projektträger Karlsruhe) Christiane Stephan-Scherb (Martin-Luther-Universität Halle-Wittenberg)
Career Panel Discussion
- Jenna Poonoosamy (Forschungszentrum Jülich)
- Diana Rodríguez Hernandez (ROTOP Pharmaka GmbH)
- Christoph Borkel (BASE)
- Silvia Stumpf (Projektträger Karlsruhe)
- Christiane Stephan-Scherb (Martin-Luther-Universität Halle-Wittenberg)
17:10 - 18:20
Room: 114/202
18:20 Transfer to Dresden
Transfer to Dresden
18:20 - 19:00

19:00 School Dinner
School Dinner
19:00 - 21:30
Tuesday 25 November 2025

08:15 Transfer Hotel - HZDR
Transfer Hotel - HZDR
08:15 - 09:00
09:00 Assessment of the containment of contaminants in subsurface barriers - Jens Wolf (Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH)
Assessment of the containment of contaminants in subsurface barriers
- Jens Wolf (Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH)
09:00 - 09:40
Room: 114/202
09:40 The range of Technetium valences and how that variation drives the formation of different oxide structures - Gordon J. Thorogood (Australia's Nuclear Science and Technology Organisation)
The range of Technetium valences and how that variation drives the formation of different oxide structures
- Gordon J. Thorogood (Australia's Nuclear Science and Technology Organisation)
09:40 - 10:20
Room: 114/202
10:20 FeII-mediated and direct immobilization of 99Tc by the bentonite-isolate Desulfitobacterium sp. G1-2 - Irene Cardaio (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
FeII-mediated and direct immobilization of 99Tc by the bentonite-isolate Desulfitobacterium sp. G1-2
- Irene Cardaio (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
10:20 - 10:22
Room: 114/202
10:25 Experimental and Theoretical 99Tc NMR Spectroscopy - Maximilian Roca Junger (Karlsruhe Institute of Technology)
Experimental and Theoretical 99Tc NMR Spectroscopy
- Maximilian Roca Junger (Karlsruhe Institute of Technology)
10:25 - 10:27
Room: 114/202
10:30 Coffee Break
Coffee Break
10:30 - 11:00
Room: 114/202
11:00 From Speciation to Retention: Understanding Selenium Mobility in the Geosphere - Norbert Jordan (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
From Speciation to Retention: Understanding Selenium Mobility in the Geosphere
- Norbert Jordan (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
11:00 - 11:40
Room: 114/202
11:40 77Se and 99Tc NMR spectroscopy: a versatile tool for studying fission product behavior in aqueous systems - Jérôme Kretzschmar (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
77Se and 99Tc NMR spectroscopy: a versatile tool for studying fission product behavior in aqueous systems
- Jérôme Kretzschmar (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
11:40 - 12:20
Room: 114/202
12:20 The behavior of Tc(I) in the environment - Sorption studies of [Tc(CO)3(H2O)3]BF4 with different minerals - Caroline Börner (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
The behavior of Tc(I) in the environment - Sorption studies of [Tc(CO)3(H2O)3]BF4 with different minerals
- Caroline Börner (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
12:20 - 12:25
Room: 114/202
12:25 Retention of Tc by Fe(II) solid phases: Combining wet chemistry experiments and spectroscopic data - Julius Wolf (Karlsruhe Institute of Technology)
Retention of Tc by Fe(II) solid phases: Combining wet chemistry experiments and spectroscopic data
- Julius Wolf (Karlsruhe Institute of Technology)
12:25 - 12:30
Room: 114/202
12:30 Lunch
Lunch
12:30 - 13:30
Room: 114/202

13:30 Visit Radiochemical Labs
Visit Radiochemical Labs
13:30 - 15:00

15:00 Coffee Break
Coffee Break
15:00 - 15:30
Room: 114/202
15:30 Isothermal calorimetry - a versatile method to determine a wide range of thermodynamical properties in aqueous systems - Sven Hagemann (Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH)
Isothermal calorimetry - a versatile method to determine a wide range of thermodynamical properties in aqueous systems
- Sven Hagemann (Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH)
15:30 - 16:10
Room: 114/202
16:10 Thermodynamic stability of 226Ra-containing carbonate phases: atomistic simulations and thermodynamic calculations - Stefan Rudin (Forschungszentrum Jülich)
Thermodynamic stability of 226Ra-containing carbonate phases: atomistic simulations and thermodynamic calculations
- Stefan Rudin (Forschungszentrum Jülich)
16:10 - 16:15
Room: 114/202
16:15 Cobalt Depletion by Inorganic Sorbents - Elizaveta Artiushova (University of Bern)
Cobalt Depletion by Inorganic Sorbents
- Elizaveta Artiushova (University of Bern)
16:15 - 16:20
Room: 114/202
16:20 Optimizing culture conditions for the interaction of Pseudodesulfovibrio aespoeensis with Tc(VII) - Carmen Solé Bonillo (Technische Universität Dresden)
Optimizing culture conditions for the interaction of Pseudodesulfovibrio aespoeensis with Tc(VII)
- Carmen Solé Bonillo (Technische Universität Dresden)
16:20 - 16:25
Room: 114/202
16:25 Learning From Nuclear Medicine To Help Cure 99Tc Contaminated Land - Callum Robinson (The University of Manchester)
Learning From Nuclear Medicine To Help Cure 99Tc Contaminated Land
- Callum Robinson (The University of Manchester)
16:25 - 16:30
Room: 114/202
16:30 Pertechnetate electrochemical reduction in carbonate environment: In situ and ex-situ 99Tc-NMR and UV/VIS spectroelectrochemical studies - Arkadz Bureika (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
Pertechnetate electrochemical reduction in carbonate environment: In situ and ex-situ 99Tc-NMR and UV/VIS spectroelectrochemical studies
- Arkadz Bureika (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
16:30 - 16:35
Room: 114/202
16:35 Normalization and isobar suppression methods for AMS-based ultra-trace detection of Technetium-99 - Stephanie Adler (University of Vienna)
Normalization and isobar suppression methods for AMS-based ultra-trace detection of Technetium-99
- Stephanie Adler (University of Vienna)
16:35 - 16:40
Room: 114/202
16:40 Reduction of Pertechnetate by Magnetite Nanoparticles - Thomas Zimmermann (Albert-Ludwigs-University Freiburg)
Reduction of Pertechnetate by Magnetite Nanoparticles
- Thomas Zimmermann (Albert-Ludwigs-University Freiburg)
16:40 - 16:45
Room: 114/202
16:45 Synthesis and characterization of macropa-based complexes for the stable coordination of radiometals - Rodrigo Castro Biondo (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
Synthesis and characterization of macropa-based complexes for the stable coordination of radiometals
- Rodrigo Castro Biondo (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
16:45 - 16:50
Room: 114/202
16:50 Accelerator produced 99mTc for medical applications: Technical and chemical optimizations and comparison with conventional Al2O3 generator systems - Marcos Michel (University of Cologne)
Accelerator produced 99mTc for medical applications: Technical and chemical optimizations and comparison with conventional Al2O3 generator systems
- Marcos Michel (University of Cologne)
16:50 - 16:55
Room: 114/202
16:55 Insights into how pyrite immobilizes technetium-99 in metabolite-rich environments - Vijay Saini (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
Insights into how pyrite immobilizes technetium-99 in metabolite-rich environments
- Vijay Saini (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
16:55 - 17:00
Room: 114/202
17:00 Immobilization of technetium(+1) with gamma-alumina and hematite - Jiyoung Eum (Technische Universität Dresden)
Immobilization of technetium(+1) with gamma-alumina and hematite
- Jiyoung Eum (Technische Universität Dresden)
17:00 - 17:05
Room: 114/202
17:05 The Role of Pseudodesulfovibrio aespoeensis in the Immobilization of 99Tc - Marcos F. Martinez Moreno (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
The Role of Pseudodesulfovibrio aespoeensis in the Immobilization of 99Tc
- Marcos F. Martinez Moreno (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
17:05 - 17:10
Room: 114/202
17:10 Poster Session
Poster Session
17:10 - 19:10
Room: 114/202

19:10 Transfer to Dresden
Transfer to Dresden
19:10 - 19:50
Wednesday 26 November 2025

08:15 Transfer Hotel - HZDR
Transfer Hotel - HZDR
08:15 - 09:00
09:00 XXX - Jon Lloyd (The University of Manchester)
XXX
- Jon Lloyd (The University of Manchester)
09:00 - 09:40
Room: 114/202
09:40 AI-assisted lab-on-a-chip experiments: Setting new frontiers in radio-geochemistry - Jenna Poonoosamy (Forschungszentrum Jülich)
AI-assisted lab-on-a-chip experiments: Setting new frontiers in radio-geochemistry
- Jenna Poonoosamy (Forschungszentrum Jülich)
09:40 - 10:20
Room: 114/202
10:20 Coffee Break
Coffee Break
10:20 - 11:00
Room: 114/202
11:00 Imaging Tc at the nanoscale by Secondary Neutral Mass Spectrometry - Clemens Walter (Leibniz Universität Hannover)
Imaging Tc at the nanoscale by Secondary Neutral Mass Spectrometry
- Clemens Walter (Leibniz Universität Hannover)
11:00 - 11:40
Room: 114/202
11:40 Controls on the Long-Term Migration and Fate of Selenium and Technetium: Insights from Complex Environmental Systems - Gareth Law (University of Helsinki)
Controls on the Long-Term Migration and Fate of Selenium and Technetium: Insights from Complex Environmental Systems
- Gareth Law (University of Helsinki)
11:40 - 12:20
Room: 114/202
12:20 Lunch
Lunch
12:20 - 13:30
Room: 114/202
13:30 From Plutonium to Technetium: Unraveling Hanford’s Nuclear Legacy and Quest for Clean-Up - Sarah Saslow (Pacific Northwest National Laboratory)
From Plutonium to Technetium: Unraveling Hanford’s Nuclear Legacy and Quest for Clean-Up
- Sarah Saslow (Pacific Northwest National Laboratory)
13:30 - 14:10
Room: 114/202
14:10 Some Insights into Tc Chemistry from a Radiopharmacy View Point. Is There Relevance for Tc Chemistry in Fission Waste? - Roger Alberto (Universität Zürich)
Some Insights into Tc Chemistry from a Radiopharmacy View Point. Is There Relevance for Tc Chemistry in Fission Waste?
- Roger Alberto (Universität Zürich)
14:10 - 14:50
Room: 114/202
14:50 Coffee Break
Coffee Break
14:50 - 15:20
Room: 114/202
15:20 XAS based speciation of technetium and long-lived fission products - Jörg Rothe (Karlsruhe Institute of Technology)
XAS based speciation of technetium and long-lived fission products
- Jörg Rothe (Karlsruhe Institute of Technology)
15:20 - 16:00
Room: 114/202
16:00 Ab initio speciation of Tc-gluconate complexes in aqueous systems - Robert Polly (Karlsruhe Institute of Technology)
Ab initio speciation of Tc-gluconate complexes in aqueous systems
- Robert Polly (Karlsruhe Institute of Technology)
16:00 - 16:40
Room: 114/202
16:40 Case Studies
Case Studies
16:40 - 18:10
Room: 114/202

18:10 Transfer to Dresden
Transfer to Dresden
18:10 - 19:00

19:00 Dinner (self-paid)
Dinner (self-paid)
19:00 - 21:20
Thursday 27 November 2025
09:00 Radiological legacy in forests adjacent to the Fukushima Daiichi Site: Interactions of key fission products with soil and biomonitors - Takayuki Sasaki (Kyoto University)
Radiological legacy in forests adjacent to the Fukushima Daiichi Site: Interactions of key fission products with soil and biomonitors
- Takayuki Sasaki (Kyoto University)
09:00 - 09:40
Room: 114/202
09:40 Solution chemistry of Tc under conditions relevant for nuclear waste disposal - Xavier Gaona (Karlsruhe Institute of Technology)
Solution chemistry of Tc under conditions relevant for nuclear waste disposal
- Xavier Gaona (Karlsruhe Institute of Technology)
09:40 - 10:20
Room: 114/202
10:20 Coffee Break
Coffee Break
10:20 - 11:00
Room: 114/202
11:00 Environmental Technetium-99 Detection at the Limits of (A)MS Sensitivity - Karin Hain (Universität Wien)
Environmental Technetium-99 Detection at the Limits of (A)MS Sensitivity
- Karin Hain (Universität Wien)
11:00 - 11:40
Room: 114/202
11:40 SQUID measurements on actinide complexes - Robert Guericke (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
SQUID measurements on actinide complexes
- Robert Guericke (Helmholtz-Zentrum Dresden-Rossendorf e.V.)
11:40 - 12:20
Room: 114/202
12:20 Workshop Wrap-Up / End of School
Workshop Wrap-Up / End of School
12:20 - 12:35
Room: 114/202

12:35 Lunch Bag
Lunch Bag
12:35 - 12:55
Room: 114/202

13:00 Optional: Visit HZDR Research Facilities
Optional: Visit HZDR Research Facilities
13:00 - 15:00
Room: 114/202

15:00 Transfer to train station Dresden - Neustadt
Transfer to train station Dresden - Neustadt
15:00 - 15:45
Room: 114/202

Choose timezone