Lydie GIOT

Lydie GIOT

Département Subatech

Poste

Enseignant Chercheur

Localisation

Nantes

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+33 2 51 85 86 66
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Laboratoire SUBATECH
IMT Atlantique
La Chantrerie
4, rue Alfred Kastler BP20722
44307 Nantes Cedex 3
Biographie

    Lydie GIOT obtained a PhD in nuclear Physics with a European Doctorate label (Univ. of Caen / Univ. of  Surrey) in 2003. She spent 2 years at the GSI laboratory in Germany working on spallation experiments for reactors driven by accelerators as a Marie Curie fellow. She joined the SUBATECH laboratory (IMT Atlantique) as an associate professor in 2006. Her research activities are on reactor physics, both for fundamental and applied physics. She worked in antineutrinos experiments and contributed to the reactor simulations for the SoLid, NUCIFER and Double Chooz experiments. In 2013, she worked within the industrial chair DAHER on new developments within the MURE code to include irradiation calculations. 

   From 2015, she works on decay heat calculations and associated uncertainties. The determination of decay heat is a major safety issue for a reactor in operation but also for the transport of burnt fuel and nuclear waste management. It is in particular a key parameter for the design of the Generation IV  safety systems but also for the use of innovating fuels.

   From 2009-2017, she was also the head of the engineering program on reactor plant design and operations which she created at the engineering school. Her teaching activities are focussed on reactor physics and simulations. She is also involved in innovative pedagogy, aiming to mobilize promptly learning outcomes under stress and to develop self-confidence in technical skills.

 

Decay Heat & Impact of nuclear data :

  • 2020- : Nuclear data uncertainty propagation with Monte-Carlo approaches and impact on fuel inventory and decay heat. Development of the COCODRILO code for decay data uncertainty propagation. NEEDS/SUDEC Project (Sensitivity Uncertainty comparison for DEpletion Calculations) in collaboration with CEA, IRSN and LPSC Grenoble.
  • 2014- : Fuel depletion and decay heat calculations for Molten Salt Reactors with the SERPENT2 code. This work is done in collaboration with the French MSFR team (IJCLab, LPSC & SUBATECH). 
  • 2012- : Decay Heat calculations with the fuel depletion codes MURE and SERPENT2. Key parameter for the reactor safety (PWRs) but also for the Gen IV reactors design. Impact of TAGS measurements on decay heat in collaboration with the TAS collaboration (IFIC-Valencia, SUBATECH, Univ. of Surrey). 

    

Reactor modeling and antineutrinos experiments :

  • 2013-2019 : SoLid experiment, BR2 research reactor, SCK-CEN, Mol, Belgium :Antineutrinos for safeguards and fondamental properties. Contribution to the BR2 reactor operating cycles in collaboration with the BR2 SCK-CEN reactor team. Confidentiality agreement with SCK-CEN.
  • 2010-2016 : NUCIFER experiment, OSIRIS reactor, CEA France. Antineutrinos for safeguards. Reactor modeling with the MURE code. Confidentiality agreement with CEA.
  • 2007-2016 :  Double Chooz experiment, N4 PWR, Chooz power plant , France. Antineutrinos oscillations. In charge between 2012 and 2016 of modeling the 2 reactors operating cycles with the MURE code. Confidentiality agreement with EDF.

Current responsibilities :

  • 2024-:  Representative for IMT Atlantique in the European Industrial Alliance for the Small Modular Reactors.
  • 2023- : Co-Teaching representative for IMT-Atlantique at the Subatech laboratory.
  • 2022- : Substitute representative at the General assembly of the European project MIMOSA (Horizon-Euratom): MultI-recycling strategies of LWR spent nuclear fuel focusing on MOlten SAlt technology, 2022-2026.  
  • 2022- :  Representative of the doctoral School Matter, Molecules, Materials and GeoSciences (3MG) for the SUBATECH laboratory.

  • 2021- : Co-representative for le CNRS in the steering committee of MSR (Molten Salt Reactor) system within Generation IV Forum.

     

Expert activities :

  • 2023-: Selected as an Evaluator for the Marie Curie Sklodowska-Curie Postdoctoral Fellowships call, HORIZON-MSCA-202x-PF-01-01 European program.
  • 2023: Evaluator for the EURIZON Fellowship Program (EUropean network for developing new horizons for Research Infrastructures, Horizon 2020).
  • 2022: Expert for the Nuclear Data Section of IAEA on data needs for decay heat calculations.
  • 2022-2023: Expert on decay heat & fuel depletion calculations for the PIRT exercise (Phenomena Identification and Ranking Table) organized per NAAREA (startup company) which currenty develops a XSMR reactor.
  • 2021-: OECD/NEA expert, member of the SG12 group of the WPNCS (Working Party on Nuclear Criticality and Safety) on decay heat calculations.
  • 2019-: OECD/NEA expert, member of the Technical Review group (SFCOMPO) on inventory and decay heat measurements of spent fuel (PWR/BWR).
     

Awards :

  • 2022: Knight in the French National Order of Academic Palms.
  • 2015: Recipient of the SAMPO Fellowship Program, French Institute of Finland, 1 of the 6 projects funded over 38.
  • 2004 - 2006:  Marie Curie Fellowship, European Project FP6, GSI, Darmstadt Germany.
  • 2002 : Marie Curie PhD Fellowship, University of Surrey, England (6 months)

Current European projects :

  • 2024-2028: ENDURANCE (EU kNowleDge hUb enAbling molteN salt reaCtor safety development and dEployment), Horizon-Europe Euratom. Member of WP1 « Reactor concepts, critical analysis and exploitation » and contributor to task 1.1 « Review of the MSR EU designs »; Member of WP4 « Modeling and simulations to enable safety assessment and licensing »:  Phd Supervisor on modeling of the source term and decay heat and associated uncertainties  in various locations of the molten-salt reactor concepts.

  • 2024-2028: APRENDE (Addressing PRiorities of Evaluated Nuclear Data in Europe),Horizon-Europe Euratom. Member of WP4 "Nuclear Data Evaluation" and contributor to task 4.3 "Fission yield evaluation"; responsible for milestone MS4.2 "Presentation on the Fission yields validation for decay heat and uncertainties" (09/27); member of WP5 "Nuclear data validation, sensitivity analyses and impact studies". PhD supervisor : Sensitivity studies and propagation of nuclear data uncertainty on molten salt reactor calculations.  

  • 2022-2026: MIMOSA (MultI recycling strategies of LWR spent nuclear fuel on MOlten SAlt),Horizon-Europe Euratom. Member of WP3 « Molten Salt composition evolution in reactor ». Responsable and contributor to the task 3.1:  fuel depletion, decay heat and doses calculations for different molten salt reactor concepts. Collaborators: EDF, LPSC, ORANO, SUBATECH and Thorizon.

Past European projects :

  • 2020-2024: PREDIS (PRE-DISposal management of radioactive waste), , member of task 4.3.2 Optimisation of treatment of secondary waste streams du WP4 Innovations in metallic treatment and conditionning. Collaboration with the radiochemistry group of SUBATECH.
  • 2019-2023: SAMOSAFER (Severe Accident Modeling and Safety Assessment for Fluid-Fuel Energy Reactors),  Task leader (3.1) in WP3: source term mobility and distribution. Collaboration with CEA, LPSC Grenoble, POLIMI, PSI and SUBATECH.  
  • 2019-2023: SANDA (Supplying Accurate Nuclear Data for energy and non energy Application), member of task 4.3 Processing and Sensitivity in WP4: Nuclear data evaluation and uncertainties. Collaboration foreseen with UPM Madrid.

DAHER industrial chair  :

  • 2012-2014 : Developement of tools to calculate displacements per atome (DPA) produced under irradiation. Application case on a nuclear waste container.

Enseignement :

  • en français et en anglais dans les TAF DEMIN, DEMIN*, SEE, SEE*,  M1 et M2 NE : modélisation, neutronique, fonctionnement réacteurs, énergie nucléaire

     

Responsabilités  :

  • 2023- : Adjoint d’enseignement (50%) du laboratoire SUBATECH pour IMT Atlantique.

  • 2009-2017 : Responsable du parcours d’ingénierie Systèmes et Technologies Associés aux Réacteurs nucléaire (STAR).

 

Responsabilités d'Unités d'Enseignement actuelles :

  • 2024- : Responsable UE élective Fusion, TAF DEMIN/DEMIN*, en français.

  • 2024- : Responsable UE élective Propulsion et Gen IV, TAF DEMIN/DEMIN*, en français.

  • 2022- : Responsable UE Introduction to nuclear technology, M1 Master Nuclear Enigneering, en anglais.

  • 2018- : Responsable UE Thermo-hydraulique, TAF DEMIN*, en français.

  • 2018- : Responsable UE Fonctionnement accidentel des réacteurs nucléaires, TAF DEMIN*, en français.

  • 2018- : Responsable UE Réacteurs et neutronique, TAF DEMIN, en français.

  • 2017- :Responsable UE Introduction to neutron physics, M1 Master Nuclear Enigneering, en anglais.