Scientific Calendar Event



Description
An ICTP-IAEA Hybrid Meeting

Member States that benefit from the ongoing peaceful uses of nuclear technology need to safely dispose radioactive waste over a defined lifetime. To identify the preferred approach, the decision - making process should be underpinned by assessing the long-term durability of waste packages under storage or disposal conditions. Underpinning the safety case are mathematical models that can predict the degradation of disposed waste packages considering the site-specific conditions, the type of waste form and waste package itself.

Computer codes underpinning the science of degradation modelling of waste forms and waste packages are developed and understood only by a few researchers in this field. Unfortunately the use of such codes in lacking worldwide due to the lack of suitably trained scientists and engineers, national resource and lack of knowledge on the subject matter. This training school is focused on teaching the approach of degradation (durability) modelling of waste packages (e.g., metals, cement, bitumen, glass) under storage or disposal conditions. There is a wide application for this modelling including the development of waste disposal concepts, radiological safety case and environmental impact assessment. This includes the containers used for waste package storage and disposal and their subsequent influence on waste package degradation and management.
 

The International School on the  Degradation Modelling of Disposed Radioactive Waste forms will include the following topics:
 
  • Principles of ageing management of waste packages 
  • Degradation of waste packages,  waste form testing and durability determinations and technical support for the safety case
  • Establishing a conceptual degradation (durability) model
  • Hydrologic and geochemical information needed for modelling waste form degradation and assessing environmental impacts
  • Model application and objectives
  • Practical demonstration of modelling codes and modeling approaches
  • Case study examples
     
Speakers:

V. FREEDMAN, Sealaska, USA
W. MEYER, IAEA-Vienna, Austria
M. OJOVAN, Imperial College, UK
A. ROUSSELET, CEA, France

Requirements for interactive practical sessions: Basic knowledge of the theory of degradation of waste forms is recommended. Personal laptop computer would be required.

Research abstract: Applicants are required to submit a research abstract for a poster. Please use the ICTP templates that are available below for download.

Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee.
 
Go to day
  • Monday, 18 September 2023
    • 08:30 - 09:00 Registration & Administrative formalities
    • 09:00 - 17:00 Introduction to Waste Forms, Degradation, and Management
      • 09:00 Opening & welcome 15'
        Speaker: Nicola SERIANI (ICTP, Italy)
      • 09:15 Introduction & background (administrative) 15'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 09:30 Introduction to waste forms, and waste packages 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 10:20 Group photo & Coffee break 20'
      • 10:40 Ageing management planning 30'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 11:10 Monitoring to identify degradation (ageing) 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 12:00 Overview of Storage and Disposal Facilities 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 13:00 Lunch break 1h0'
      • 14:05 Storage and disposal conditions: Influence of environmental conditions on metal containers during storage 30'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 14:35 Storage and disposal conditions: Influence of environmental conditions on polymer containers for liquids during storage 30'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 15:05 Storage and disposal conditions: Influence of environmental conditions on cement containers during storage (incl. video) 30'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 15:35 Coffee break 15'
      • 15:50 Participant Pico presentations 1h10'
        Participants (countries will be nominated based on applications)
        Material: Booklets Yervand Stepanyan Yulia Hontar
    • 18:00 - 19:00 Welcome reception
      Location: Adriatico Guest House Terrace
  • Tuesday, 19 September 2023
    • 09:00 - 17:00 Representative Processes
      • 09:00 Role of radiation damage in waste forms and waste packages 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 09:50 Alkali-silica reaction in cemented waste packages: A case study 50'
        Online
        Speaker: Céline CAU DIT COUMES (CEA, France)
        Material: Slides
      • 10:40 Coffee break 15'
      • 10:55 Overview of glass corrosion 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 11:50 Introduction to waste form modelling 50'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
        Material: Slides
      • 12:45 Lunch break 1h5'
      • 13:50 Chemistry of cement waste forms 50'
        Speaker: Angelique ROUSSELET (CEA, France)
        Material: Slides
      • 14:40 Coffee break 15'
      • 14:55 Laboratory testing to support durability modelling 50'
        Speaker: Angelique ROUSSELET (CEA, France)
        Material: Slides
      • 15:45 Participant Pico presentations 1h15'
        Participants (countries will be nominated based on applications)
        Material: Booklets
  • Wednesday, 20 September 2023
    • 09:00 - 17:00 Introduction to Waste Form Degradation Modelling (Part I)
      • 09:00 Modelling approaches and transport pathways 50'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
        Material: Slides
      • 09:50 Introduction to atmospheric transport modelling 50'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
        Material: Slides
      • 10:40 COFFEE BREAK 15'
      • 10:55 Applied transport modelling 50'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
        Material: Slides
      • 11:50 Translating chemistry of cement waste forms into modelling 50'
        Speaker: Angelique ROUSSELET (CEA, France)
        Material: Slides
      • 12:45 LUNCH 1h5'
      • 13:50 Interactive session: Tutorial based modelling exercises in computer facility of ICTP (Part 1) 1h10'
        only for participants 'in person'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
        Material: Modelling exercises
      • 15:00 Coffee break 20'
      • 15:20 Interactive session: Tutorial based modelling exercises in computer facility of ICTP (Part 1) 1h40'
        only for participants 'in person'
        Speaker: Vicky FREEDMAN (Sealaska, USA)
  • Thursday, 21 September 2023
    • 09:00 - 17:00 Chemistry of Waste Form Degradation Modelling (Part II)
      • 09:00 Simplified chemical modelling demonstration 50'
        Speaker: Angelique ROUSSELET (CEA, France)
      • 09:50 Introduction to Geochemical Modelling 50'
        Speaker: Willie MEYER (IAEA, Austria)
        Material: Slides
      • 10:40 COFFEE BREAK 15'
      • 10:55 Simplified geochemical modelling demonstration 1h50'
        Speaker: Willie MEYER (IAEA, Austria)
      • 12:45 LUNCH 1h5'
      • 13:50 Interactive session: Tutorial based modelling exercises in computer facility of ICTP (Part II) 1h10'
        only for participants 'in person'
        Speaker: Angelique ROUSSELET (CEA, France), Willie MEYER (IAEA, Austria), Vicky FREEDMAN (Sealaska, USA)
      • 15:00 Coffee break 20'
      • 15:20 Interactive session: Tutorial based modelling exercises in computer facility of ICTP (Part II) 1h40'
        only for participants 'in person'
        Speaker: Angelique ROUSSELET (CEA, France), Willie MEYER (IAEA, Austria), Vicky FREEDMAN (Sealaska, USA)
  • Friday, 22 September 2023
    • 09:00 - 12:00 Case Studies
      • 09:00 Overview of Glass Modelling 50'
        Online
        Speaker: Stéphane GIN (CEA, France)
      • 09:50 Case Studies: Waste form ageing and degradation field testing 50'
        Speaker: Michael OJOVAN (Sheffield University, UK)
        Material: Slides
      • 10:40 COFFEE BREAK 15'
      • 10:55 Concluding Session, Poster Awards, Certificates 1h5'
        Speaker: Nicola SERIANI (ICTP, Italy), Willie MEYER (IAEA, Austria)