Anomalous reflection of electromagnetic waves at linear O-X mode conversion in 2D inhomogeneous turbulent plasma is investigated. The problem is treated assuming the density fluctuation level is low enough that the Born approximation is still applicable. Accounting for the two-dimensional side-scattering effects a criterion on the plasma density fluctuation level exceeding which the Born approximation is no longer valid and the anomalous reflection appears to be substantial, is derived.
2次元非一様乱流プラズマにおける線形O-Xモード変換時の電磁波の異常反射を調査した。この問題は、密度揺らぎのレベルがボルン近似が依然として適用可能な程度に低いと仮定して扱われる。2次元側方散乱効果を考慮に入れ、ボルン近似がもはや有効ではなくなり異常反射が顕著になるときのプラズマ密度揺らぎレベルに関する基準を導出した。