Patent ID: 6335958
Filing Date: 2002-01-01
Classification: G01T,Y10S

Abstract:
Process for acquiring measurements with a tomodensitometer comprising the following steps:a body is irradiated, during a given view, with X-ray radiation, an analogue signal is measured for this view, in each detector of an array of detectors, this signal representing the effect of the absorption of the X-ray radiation in the body at the location of each of these detectors, measurement ranges are constructed, associated with processings of the measured signals, and distributed over the dynamic swing of the signal to be measured, from a smaller range to a larger range, stepped as a function of values of this signal to be measured, characterized in thatgroups of detectors are constructed, the signal from all the detectors of a group is compared with a threshold, and a measurement range is determined for all the detectors of this group of detectors, which measurement range is compatible with the signals from the detectors of this group, and this determined range is assigned to the detectors of this group.