Influence of tube voltage tube current and boot time on CT image quality
The image quality of CT scanning is related to the parameters set and the startup time.Different scanning parameters lead to different experimental results,and the startup time has a certain impact on the system stability,resulting in differences in CT image quality.A high-resolution comprehensive scanning analysis system nanoVoxel-2792 was used to scan concrete specimens,and the effects of different tube voltages,tube currents and equipment start-up time on CT image quality were compared.The results show that the image quality varies with different tube voltages and currents.The higher the voltage,the higher the image contrast,the less obvious ring artifacts and the less noise.Tube current has little influence on image quality,and the larger the current value,the better the image quality.NanoVoxel-2792 CT with tube voltage set at 130kV and tube current set at 100μA has the best scanning results.The CT startup time has little influence on image quality,and the system is more stable after 2 hours of startup.
万方数据
维普
