Xenon-131 surface sensitive imaging of aerogels in liquid xenon near the critical point.

In recent years, optically pumped xenon-129 has received a great deal of attention as a contrast agent in gas-phase imaging. This report is about the other NMR active xenon isotope (i.e.

Quenched molecular reorientation and angular velocity in nanopores.

A theoretical treatment shows how the orientational dependent and spin rotation relaxation rates of a confined nonpolar liquid depend on the average pore size. Experimental nuclear relaxation data on carbon disulfide and cyclohexane in a set of calibrated porous glasses support the theory.