Description
The factors related to human actions in the future, following closure that potentially change the disposal system to the extent that this affects its performance and safety.
Category
Categorisation as a Feature, Event and/or Process.
Features
are physical components of the disposal system and environment being assessed. Examples include waste packaging, backfill, surface soils. Features typically interact with one another via processes and in some cases events.Events
are dynamic interactions among features that occur over time periods that are short compared to the safety assessment timeframe such as a gas explosion or meteorite impact.- "Processes" are issues or dynamic interactions among features that generally occur over a significant proportion of the safety assessment timeframe and may occur over the whole of this timeframe. Events and processes may be coupled to one another (i.e. may influence one another).
The classification of a FEP as an event or process depends upon the assessment context, because the classification is undertaken with reference to an assessment timeframe. In this generic IFEP List, many IFEPs are classified as both Events and Processes; users will need to decide which of these classifications is relevant to their context and its timeframes.
- FEP Subgroup
2000 List
A reference to the related FEP(s) within the 2000 NEA IFEP List.
1.4
Related References
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NEA (), Safety Assessment of Radioactive Waste Repositories: Future Human Actions at Disposal Sites – A Report of the NEA Working Group on Assessment of Future Human Actions at Radioactive Waste Disposal Sites, Nuclear Energy Agency/Organisation for Economic Cooperation and Development Paris, 70, http://www.oecd-nea.org/rwm/reports/1995/nea6431-human-actions.pdf
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Seitz R, Kumano Y, Bailey L, Markly C, Andersson E and Thomas B (), Considerations Related to Human Intrusion in the Context of Disposal of Radioactive Waste – The IAEA HIDRA Project, Proceedings of the WM2014 Conference, March 2-6, 2014, Phoenix, Arizona, USA, 11, http://www.wmsym.org/archives/2014/papers/14101.pdf
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IAEA (), Environmental Change in Post-closure Safety Assessment of Solid Radioactive Waste Repositories, Working Group 3 Reference Models for Waste Disposal of EMRAS II Topical Heading Reference Approaches for Human Dose Assessment. Environmental Modelling for Radiation Safety (EMRAS II) Programme, International Atomic Energy Agency, Vienna, IAEA-TECDOC-1799, http://www-pub.iaea.org/MTCD/Publications/PDF/TE1799web.pdf