Criticality assessments for long-term post-closure canister corrosion scenarios in a deep geological repository

COVID-19 Intervention Scenarios for a Long-term Disease Management

Background The first outbreak of coronavirus disease 2019 (COVID-19) was successfully restrained in many countries around the world by means of a severe lockdown. Now, we are entering the second phase of the pandemics in which the spread of the virus needs to be contained within the limits that national health systems can cope with. This second phase of the epidemics is expected to last until a...

Assessment of Long-Term Radiological Effects on Plants and Animals from a Deep Geological Repository: No Discernible Impact Detected

This study investigates whether non-human biota are protected against harmful effects of ionizing radiation after a possible future release of radioactive matter from a planned repository for spent nuclear fuel. Radiation dose rates to a broad spectrum of organisms were calculated based on data from sampled organisms and modeled activity concentrations. Calculations were performed with the ERIC...

Long term geological record of a global deep subsurface microbial habitat in sand injection complexes

There is extensive evidence from drilling into continental margins for microbial colonization of a deep biosphere. However it is difficult to prove deep biosphere activity in the geological record, where evidence for life is dominated by the remains of organic matter buried after deposition at the surface. Nevertheless we propose that natural injections of sand into muddy strata at continental ...

Ultrasonic Investigations on Copper Canister Welds in Preparation for the Storage of Spent Nuclear Fuel in a Deep Repository

Abstract. The Swedish KBS-3 design for the disposal of spent fuel is based on its encapsulation cast iron cylinders that have an outer 30 – 50 mm thick shield of copper and deposition in crystalline rock embedded in bentonite at a depth of about 500 m. The KBS-3 system is based on a multi barrier system where the canister is the primary barrier. The cast iron insert gives the canister the neces...

Long-term Emissions and Climate Stabilization Scenarios