Detector Apparatus For A Computed Tomography System

摘要

A detector apparatus includes a number of detectors for assigned radiation sources of a computed tomography system, wherein each detector may require a constant input voltage in a range between 900 V and 1200 V. During operation of the detector apparatus, an auxiliary voltage is fed to a high voltage source to supply power to the input terminals on the number of detectors. The high voltage source includes a central first DC-DC converter, to which the auxiliary voltage is fed, and a number of second DC-DC converters arranged downstream of the first DC-DC converter. The first and the second DC-DC converter are based on different power supply topologies, wherein each second DC-DC converter generates the constant input voltage in the predetermined range from a central output voltage provided by the first DC-DC converter and supplies the constant input voltage to a corresponding detector.

主权项

1. A detector apparatus, comprising:
one or more detectors corresponding to assigned radiation sources of a computed tomography system, wherein each detector operates with a constant input voltage in a predetermined range between 900 V and 1200 V; a high voltage source configured to supply to the one or more of detectors, wherein an auxiliary voltage is supplied to input terminals of the high voltage source during operation of the detector apparatus. wherein the high voltage source comprises:
a central first DC-DC converter to which the auxiliary voltage is supplied, andone or more second DC-DC converters arranged downstream of the first DC-DC converter, wherein the first DC-DC converter and the one or more second DC-DC converters embody different power supply topologies, and wherein each second DC-DC converter generates the constant input voltage in the predetermined range from a central output voltage provided by the first DC-DC converter, and supplies the constant input voltage to a corresponding detector.