2008 年 3 巻 p. 046
Experimental parameters of fine particle plasmas, densities and temperatures of components and the fine particle size, are explicitly expressed in terms of dimensionless characteristic parameters, such as Coulomb coupling and strength of screening, and typical examples are given. Though characteristic parameters are readily obtained from experimental parameters, the reverse is not trivial and it is shown that the charge neutrality condition limits the characteristic parameters realized by fine particle plasmas within the domain (a/λ)2 /(Γ/A) ≥ 3. Here, a and λ are the mean distance between fine particles and the screening length, respectively, Γ = (Qe)2 /akBTp is the Coulomb coupling of fine particles, and A = (neTe + niTi)/npTp is the ratio of the ideal gas pressures of ambient plasma (of ions and electrons) and fine particles.
