Patent ID: 11944484
Assignee: CANON MEDICAL SYSTEMS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. An X-ray scanner system, comprising:
a single slab of a single material placed in a field of view of the X-ray scanner system, wherein the slab has a known linear attenuation coefficient and a known pathlength; and
processing circuitry configured to
scan, with the X-ray scanner system, the slab with at least one X-ray tube located at plural known locations at different corresponding angles relative to the slab so as to scan the slab from the different corresponding angles;
after another single slab of the single material having a different thickness than the single slab is placed in the field of view of the X-ray scanner system, repeat the scan with the X-ray scanner system;
generate material decomposition data based on the scannings at the different corresponding angles for the single slab and the another single slab;
generate air calibration data based on an air scan using the at least one X-ray tube at a rotation speed; and
calibrate a forward model for the X-ray scanner system based on the material decomposition data and the air calibration data.