Soil organic carbon is of key importance for soil functioning. It strongly impacts soil fertility, greenhouse gas emissions, nutrient retention, and contaminant degradation properties. Equally fundamental to soil functions is the soil pore network architecture. It determines how oxygen, water and nutrients are transported and exchanged in soil. For a thorough understanding of the latter, the soil pore network architecture needs to be evaluated alongside with the distribution of soil organic carbon relative to it. It is meanwhile possible to non-invasively map the soil pore network architecture in high detail using X-ray imaging. Methods for quantifying the spatial distribution of carbon at a similar level of detail are yet to be found. Joint neutron and X-ray imaging have shown potential to deliver such data. It is the aim of this project to use explore such an approach in detail.