Multi-tube imaging system scatter correction

A computed tomographic system comprising:

• at least two x-ray sources that rotate about and concurrently emit radiation through an imaging region, wherein each of the at least two x-ray sources is deactivated within respective cross scatter sampling intervals in which cross scatter radiation for the deactivated x-ray source is sampled with an angular sampling spacing to allow the at least two x-ray sources to concurrently emit radiation throughout at least one data acquisition frame;
• at least one detector for each of the at least two x-ray sources, wherein the at least one detector detects projection data when the at least two x-ray sources simultaneously emit radiation and cross scatter radiation for the deactivated x-ray source;
• an interpolator that creates scatter correction samples from the detected cross scatter samples to generate samples for frames in between the sampled frames;
• a correction component that scatter correct projection data with corresponding scatter correction data;
• and
• a reconstruction system that reconstructs the scatter corrected projection data to generate at least one image.

A CT imaging system comprising:

• means for concurrently emitting radiation through an imaging region with at least two x-ray sources;
• means for selectively turning each of the at least two x-ray sources off during respective cross scatter sampling intervals and sampling cross scatter radiation for the deactivated x-ray source with an angular sampling spacing to allow the at least two x-ray sources to concurrently emit radiation throughout at least one data acquisition flame;
• means for detecting radiation emitted by the at least two or more x-ray sources;
• means for creating scatter correction signals from the detected cross scatter samples for a desired number of frames;
• means for scatter correcting projection data with the scatter correction data;
• and
• means for reconstructing the scatter corrected projection data to generate at least one image.