Kabushiki Kaisha Toshiba;Toshiba Medical Systems Corporation
发明人:
Xiaolan Wang,Yu Zou
申请号：
US13770829
公开号：
US09020092B2
申请日:
2013.02.19
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A method for detector angular response calibration in computed-tomography (CT) comprising capturing incident X-ray photons, emitted from an X-ray source, via a plurality of energy-discriminating detectors, determining photon counts of the captured incident X-ray photons in a plurality of energy windows at each energy-discriminating detector, and adjusting the photon counts based on a pre-determined detector angular response calibration look-up table for a given view for each energy-discriminating detector at each energy window.
