PHASE DETERMINATION AND INVERSION OF SPECULAR REFLECTION DATA IN NEUTRON SURFACE SCATTERING

被引：3
|
作者：
LIPPERHEIDE, R
REISS, G
FIEDELDEY, H
SOFIANOS, SA
LEEB, H
机构：
[1] FREE UNIV BERLIN, D-14091 BERLIN, GERMANY
[2] UNIV S AFRICA, DEPT PHYS, PRETORIA 0001, SOUTH AFRICA
[3] VIENNA TECH UNIV, INST KERNPHYS, A-1040 VIENNA, AUSTRIA
来源：
SURFACE SCIENCE | 1994年 / 307卷 / 1 -3 pt B期
关键词：
D O I：
10.1016/0039-6028(94)91512-1
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new method is proposed for the determination of the reflection phase in neutron specular reflection from surfaces and interfaces, using reflectivity data in conjunction with absorption measurements. Knowing the reflectivity and the reflection phase, one obtains the surface profile by inversion. Two inversion methods are discussed. In one scheme one solves numerically the Marchenko equation of the one-dimensional inverse scattering problem. The other method makes use of a class of parameterised reflection coefficients for which the scattering profile is known analytically (''solvable profiles'').
引用
收藏
页码：901 / 906
页数：6
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