X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Reexamination Certificate
2006-04-11
2008-10-14
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
C378S098700, C378S108000
Reexamination Certificate
active
07436930
ABSTRACT:
With a method for controlling the dose or dose rate when recording x-ray images by means of a detector comprising image elements which record a plurality of dose data values, an actual value is determined for the dose or dose rate from the totality of the data values recorded by the image elements of a predetermined image segment, said actual value being compared with a predetermined target value in order to control the dose or dose rate when recording a further x-ray image. In accordance with the invention, the actual value is determined such that on the basis of a frequency distribution of the dose data values of the image elements assigned to the dominant, a p-quantile is determined, and that the dose data value assigned to the p-quantile is used to determine the actual value.
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Bernhardt Philipp
Böhm Stefan
Geiger Bernhard
Artman Thomas R
Glick Edward J
Siemens Aktiengesellschaft
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