X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2007-01-31
2008-11-18
Yun, Jurie (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S004000, C378S021000
Reexamination Certificate
active
07453981
ABSTRACT:
A focus-detector arrangement of an X-ray apparatus is disclosed, for generating projective or tomographic phase contrast recordings of a subject. In at least one embodiment, least one grating of a focus-detector arrangement includes, at least partially, a macroscopically homogeneous medium which, when excited by an energy source, assumes a periodic structure/standing wave field that leads to beam splitting and the formation of an interference pattern when the X-ray beam passes through.
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German Office Action (dated Aug. 10, 2007).
Baumann Joachim
Engelhardt Martin
Freudenberger Jörg
Hempel Eckhard
Hoheisel Martin
Harness & Dickey & Pierce P.L.C.
Siemens Aktiengesellschaft
Yun Jurie
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