Fast laboratory-based micro-computed tomography for pore-scale research: Illustrative experiments and perspectives on the future

摘要: Abstract Over the past decade, wide-spread implementation of laboratory-based X-ray micro-computed tomography (micro-CT) scanners has revolutionized both experimental and numerical research on pore-scale transport in geological materials. The availability these opened up possibility to image a rock's pore space 3D almost routinely many researchers. While challenges do persist this field, we treat next frontier micro-CT scanning: in-situ, time-resolved imaging dynamic processes. Extremely fast (even sub-second) become possible at synchrotron facilities over last few years, however, restricted accessibility synchrotrons limits amount experiments which can be performed. much smaller flux systems bounds time resolution attained facilities. Nevertheless, progress is being made improve quality measurements performed sub-minute scale. We illustrate by presenting cutting-edge scale visualizing two-phase flow solute real-time with lab-based environmental set-up. To outline current state young field its relevance research, critically examine bottlenecks their solutions, hardware software level. Further developments laboratory-based, could prove greatly beneficial our understanding behavior materials improvement modeling providing valuable validation.