发明名称 |
Phase retrieval in phase contrast imaging |
摘要 |
A method of obtaining in image of the phase change introduced by an object in penetrating radiation incident on the object includes irradiating the object with penetrating radiation having high lateral spatial coherence, and receiving at least a portion of the radiation at a detector after the radiation has merged from the object and thereby obtaining and storing at least two intensity records for the received radiation each including intensity values at predetermined intervals. These values are utilized to derive a grid of values defining an image of the phase change introduced by the object in the penetrating radiation. The intensity records are obtained at a uniform finite distance after the radiation has emerged from the object, and are for respective different energy distributions of the detected radiation. Apparatus is also disclosed.
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申请公布号 |
US6226353(B1) |
申请公布日期 |
2001.05.01 |
申请号 |
US19990331861 |
申请日期 |
1999.09.13 |
申请人 |
X-RAY TECHNOLOGIES PTY, LTD |
发明人 |
WILKINS STEPHEN WILLIAM;STEVENSON ANDREW WESLEY;POGANY PETER ANDREW;GUREYEV TIMUR |
分类号 |
H05G1/02;A61B6/00;G01N23/04;G03B42/02;G21K1/02;(IPC1-7):H05G1/00 |
主分类号 |
H05G1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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