Fundamentals of Plasma Physics

502 Chapter 17. Dusty plasmas

insider ̄o, consistent with the hard-sphere behavior of the dust grain test particle. Although

ψis tiny at the interface between regions 2 and 3, it nevertheless affects the average dust

grain density profile at this location because of the extremely largecharge on the dust

grains.

Figure 17.4: Contours of ̄ro/ ̄aas determined from solution to matching problem. Conden-
sation (crystallization) is predicted to occur above ther ̄o/a ̄= 1line. Chu and I (1994)
crystallization experiment, shown as bold line, is seen to lie in the condensation region.