Table 5.
Summary of Positron Imaging Experiments Focused on Soils/Sediments.
| Area of study | Focus of study | Nuclide imaging modality | Reference(s) |
|---|---|---|---|
| Positron imaging for visualization of transport processes in porous environmental media | |||
|
Positron imaging of transport processes in natural and model porous systems
|
Imaging heterogeneous water flow in sand column | PET | 118 |
| Water flow through sand core with and without flow impediments | PET | 115, 119 | |
| Water flow through a drill core composed of varying size sand, silt, gravel and coal particles | PET | 116 | |
| Water flow through a column of packed glass beads | PET | 117 | |
| Movement of Cu2+ through a sand column | PET | 116 | |
| Transport of Cu2+-MCPA acid complex through a model soil column | PET | 120 | |
| Positron imaging of biological activity in soils and sediments | |||
|
Positron imaging for visualization of biological activity in natural and model porous systems
|
Visualizing activity distribution of the bacterium Rahnella in a soil core layered with coarse and fine sections | PET | 112 |
| Distribution of incipient active microbial communities in a floodplain sediment | PET | 113 | |
| Distribution of active autotropic cyanobacteria across a biological soil crust | PET | 114 | |