%0 Journal Article
%T Instability of Solution of Phase Retrieval in Direct Diffraction Phase-Contrast Imaging with Partially Coherent X-Ray Source
%A GUO Hua
%A HAN Shen-Sheng
%A <br>郭华
%A 韩申生
%J 中国物理快报
%D 2006
%I 
%X The theoretical model of direct diffraction phase-contrast imaging with partially coherent x-ray source is expressed by an operator of multiple integral. It is presented that the integral operator is linear. The problem of its phase retrieval is described by solving an operator equation of multiple integral. It is demonstrated that the solution of the phase retrieval is unstable. The numerical simulation is performed and the result validates that the solution of the phase retrieval is unstable.
%K 42
%K 30
%K Rx
%K 42
%K 30
%K Wb
%K 41
%K 50
%K +h
%K 02
%K 30
%K Rz<br>直接衍射相位对比度成像模型
%K 偏相干X-射线源
%K 相位提取方案
%K 不稳定性
%K 算子方程
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=CE7A1ABFB4CEF0BC12A6C6C4EF1D7FB0&yid=37904DC365DD7266&vid=EA389574707BDED3&iid=59906B3B2830C2C5&sid=02F9B432D1C44D18&eid=304004327C104506&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=26