Synthesis. of water ice particles in a plasma chamber

摘要

We describe a new type of experiment where micrometer-size water ice particles are created from D2 and 02 in the plasma chamber, with the electrodes cooled by liquid nitrogen. In the reactor, D_2 and O_2 are decomposed by electron impacts and form precursors for chemical reactions. Water ice particles are produced within a second after plasma ignition. We propose a simple growth/sedimentation model, which reproduces the experimental data.