Li Zhenzhen, Du Minghui
Department of Electronics and Information, South China University of Technology, Guangzhou 510641, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2009 Feb;26(1):59-62.
Using the present cone beam reconstruction formula for general trajectory, we have investigated the issue of detector efficiency for non-helical trajectory. The results reveal that the two factors dominating the detector efficiency are detector geometry and filtering directions. The methods for to higher detector efficiency are proposed, and the reliability and feasibility are tested by simulation results.
利用现有的用于一般轨迹的锥束重建公式，我们研究了非螺旋轨迹下探测器效率的问题。结果表明，决定探测器效率的两个因素是探测器几何形状和滤波方向。提出了提高探测器效率的方法，并通过模拟结果验证了其可靠性和可行性。
