The cross-section of laser collective scattering in a fully ionized plasma is equal to the Thomson scattering cross-section multiplying a form factor. The form factor is determined by the density fluctuations of electrons.

• 激光在完全电离等离子体中集体散射截面等于单个电子的汤姆逊散射截面乘以结构因子，结构因子由电子密度涨落确定。