Special Issue "The Development and Use of Synchrotron Radiation Techniques for the Geological Disposal of Radioactive Wastes"
A special issue of Geosciences (ISSN 2076-3263).
Deadline for manuscript submissions: closed (30 November 2018).
Interests: environmental engineering; geochemistry; colloidal nanoparticles; actinides; fission products; environmental mineralogy; geological disposal; legacy nuclear wastes
Interests: cement chemistry; materials science; materials degradation; mineralogy; porous materials; nuclear waste disposal; synchrotron XRD
In many countries such as the UK and France, the nuclear energy sector plays a vital role in achieving energy security and reducing the emission of greenhouse gasses as outlined in the Paris agreement. For viable and safe operation of the nuclear energy sector, however, long-term management strategies with a safety case based on scientific evidence need to be in place for the radioactive wastes produced (and legacy wastes from six decades of nuclear power generation). The preferred route for the long-term management of radioactive wastes is through the disposal within geological disposal facilities in deep geological formations. Such facilities will need to be designed to minimize the likelihood of radioactive substances contaminating the environment. This will be achieved using a multi-barrier concept. Within such a concept, several barriers will be in place to inhibit groundwater from reaching the wastes and to retain radioactive substances within a geological disposal facility. Such barriers include the waste forms, backfill materials after the wastes have been safely stored within the facility, the structural engineering materials of the facility itself, and the host rock in the vicinity of the geological disposal facility.
The design of such a geological disposal facility will need to be supported by a safety case based on the most up-to-date scientific understanding of the behaviour of such a facility within deep geological formations. Synchrotron radiation techniques (e.g., X-ray spectroscopy, diffraction, scattering, tomography, and fluorescence spectroscopy) play an increasingly important role in research on the geological disposal of radioactive wastes. In this Special Issue of Geosciences, we aim to showcase the use and development of state-of-the-art synchrotron radiation techniques in order to enhance our understanding of the behaviour of potential geological disposal facilities for nuclear wastes and how wastes, actinides and fission products behave within such a facility and the surrounding environment.
The use and development of synchrotron radiation techniques in this Special Issue can be applied to the example topics listed below:
- Interaction of actinides and fission products with engineered materials and host rock mineralogy
- Stability of nuclear waste forms and novel encapsulation materials during the lifetime of a geological disposal facility
- Potential radionuclide transport mechanism in a geological disposal facility
- Mineralogical stability of engineering materials in geological disposal settings
- The geochemistry and microbiology of natural analogues
Dr. Pieter Bots
Dr. Andrea Hamilton
Manuscript Submission Information
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- Synchrotron radiation
- Fission products
- Geological disposal
- Nuclear waste
- Structural materials
- Host rock
- Natural analogues