INVERSION PROCEDURE FOR INVERSE SCATTERING WITHIN THE DISTORTED-WAVE BORN APPROXIMATION
INVERSION PROCEDURE FOR INVERSE SCATTERING WITHIN THE DISTORTED-WAVE BORN APPROXIMATION
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DOI：
10.1103/physrevlett.51.237
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发表时间：
1983-01-01
影响因子：
8.6
通讯作者：
ORISTAGLIO, ML
中科院分区：
文献类型：
--
作者：
DEVANEY, AJ;ORISTAGLIO, ML
利用散射场数据确定局部散射势V （r→）= V 0 （r→）+ δ V （r→）与已知背景势V 0 （r→）的偏差δ V （r→）的问题在畸变波玻恩近似中得到了解决。本文提出了一种方法，使δ V （r→）可以近似地由电位的散射振幅f （k s→，k s→0）来重建，假设在固定k和所有入射（s→0）和观测（s→）方向上都是指定的。重建方法被证明是先前开发的反演过程的推广，当v0 （r→）≡0时，它减少了。
The problem of determining the deviation δ V (r→) of a local scattering potential V (r→)= V 0 (r→)+ δ V (r→) from a known background potential V 0 (r→) by use of scattered-field data is addressed within the distorted-wave Born approximation. A procedure is presented that allows δ V (r→) to be approximately reconstructed from the potential's scattering amplitude f (k s→, k s→ 0) assumed specified for fixed k and all incident (s→ 0) and observation (s→) directions. The reconstruction method is shown to be a generalization of an inversion procedure developed earlier, to which it reduces when V 0 (r→)≡ 0.