MRI pulse sequences with ultra-short detection for imaging of transport in soils (T01*)

通过磁共振成像（MRI）成像天然土壤芯中的水通量和溶质运移需要在激发后最小化检测时间，因为在这样的材料中弛豫时间可以容易地达到亚毫秒范围。方便的脉冲序列已经被开发用于医学诊断，并且原则上也方便用于地球物理应用。但其实施需要进一步推动时间限制。根据所获得的关于地质介质中的弛豫和成像的知识，TR32和地球物理界将拥有可靠监测自然地质岩心中水通量和溶质运移的仪器。

Imaging of water fluxes and solute transport in natural soil cores by magnetic resonance imaging (MRI) requires the minimization of detection time after excitation, since in such materials relaxation times can easily reach the sub-millisecond range. Convenient pulse sequences have been developed for medical diagnostics and are principally also convenient for geophysical applications. But their implementation requires further pushing of the time limitations. Based on the acquired knowledge about relaxation and imaging in geological media the TR32, and the geophysical community, will have instruments for reliably monitoring of water fluxes and solute transport in natural geological cores.