X-ray or gamma ray systems or devices – Beam control
Reexamination Certificate
2008-07-22
2008-07-22
Kiknadze, Irakli (Department: 2882)
X-ray or gamma ray systems or devices
Beam control
C378S147000, C378S150000
Reexamination Certificate
active
07403597
ABSTRACT:
in a diaphragm device for an x-ray apparatus for scanning a subject with a radiation beam and a scanning method using such a diaphragm device, the diaphragm device has at least two diaphragms. For at least one segment of the scan, the radiation beam that has been adjusted with the first diaphragm can be at least partially dynamically masked by the second diaphragm. High adjustment precisions for precise exposure of a measurement field of detector and high adjustment speed for masking of a radiation beam that is not needed for reconstruction of an image, or for reduction of a radiation exposure of the subject can be implemented to equal degree with the two diaphragms that are separate from one another.
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Kiknadze Irakli
Schiff & Hardin LLP
Siemens Aktiengesellschaft
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