Abstract: The changes of the line spread function(LSF)and modulation transfer function(MTF)of scanner due to the variation of detector bias voltage are analyzed.

• 文摘:通过实验和计算,分析由于探测器偏置电压的不同所产生的线扩展函数(LSF)变化和随之导致的扫描器调制传递函数(MTF)变化。