Patent ID: 11963284
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Measurement (Instruments)
Classification: CPC H  A  G | IPC A  G  H

Claim 0:
1. An imaging system, comprising:
an X-ray radiation source configured to emit radiation that traverses an examination region; and
a controller configured to:
control an X-ray tube peak voltage of the X-ray radiation source to switch between at least two different X-ray tube peak voltages during a kVp switched spectral scan; and
control a grid voltage of the X-ray radiation source to follow the X-ray tube peak voltage during the spectral scan, wherein the controller is configured to adjust the grid voltage based on a predetermined mapping between a currently applied X-ray tube peak voltage and a corresponding grid voltage for a particular focal spot size such that the particular focal spot size is maintained throughout the spectral scan, wherein the mapping is between X-ray tube peak voltages and grid voltages for each respective focal spot size of a plurality of focal spot sizes.