Open AccessFocusing performance of a multilayer Laue lens with layer placement error described by dynamical diffraction theory
Author(s) -
Hu Lingfei,
Chang Guangcai,
Liu Peng,
Zhou Liang
Publication year - 2015
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577515006487
Subject(s) - diffraction , lens (geology) , optics , layer (electronics) , ideal (ethics) , focus (optics) , computer science , physics , materials science , nanotechnology , philosophy , epistemology
The multilayer Laue lens (MLL) is essentially a linear zone plate with large aspect ratio, which can theoretically focus hard X‐rays to well below 1 nm with high efficiency when ideal structures are used. However, the focusing performance of a MLL depends heavily on the quality of the layers, especially the layer placement error which always exists in real MLLs. Here, a dynamical modeling approach, based on the coupled wave theory, is proposed to study the focusing performance of a MLL with layer placement error. The result of simulation shows that this method can be applied to various forms of layer placement error.