X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2007-01-31
2009-02-03
Yun, Jurie (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S004000, C378S021000, C378S070000, C378S145000
Reexamination Certificate
active
07486770
ABSTRACT:
A focus-detector arrangement includes a radiation source with a focus, arranged on a first side of the subject, for generating a fan-shaped or conical beam of rays; at least one X-ray optical grating arranged in the beam path, with at least one phase grating arranged on the opposite second side of the subject in the beam path generating an interference pattern of the X-radiation preferably, in a particular energy range; and an analysis-detector system which detects at least the interference pattern generated by the phase grating in respect of its phase shift with position resolution. According to at least one embodiment of the invention, at least one X-ray optical grating including bars which are free from overhangs form shadows in the beam path of the fan-shaped or conical beam of rays.
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Baumann Joachim
David Christian
Engelhardt Martin
Freudenberger Jorg
Hempel Eckhard
Harness Dickey & Pierce PLC
Siemens Aktiengesellschaft
Yun Jurie
LandOfFree
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