摘要
电荷耦合器件(CCD)光电输入输出响应特性是其用于光束远近场能量分布测量的重要参数,介绍一种新的标定方法———小孔衍射方法:即利用小孔衍射图像的零级谱的能量相对分布作为CCD能量的标准参考输入,依据最小二乘拟合准则,根据CCD的灰度输出标定其响应特性。介绍了数据处理方法并完成了校核实验及误差分析。
The CCD＇s optics-electron characteristic is an important parameter when it is applied to measuring the energy distribution of laser＇s far-field and near-field. A new method of calibrating the CCD＇s optics-electron characteristic is introduced in this paper. The method uses the zeroth order energy-distribution caused by the pinhole diffraction as the CCD＇s fiducial input energy. According to the CCD＇s output data sampling the pinhole diffraction, the optics-electron characteristic curve is calculated through the least-square algorithm. The data process procedure, the validation experimental result and the analysis of its residual error are presented.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2006年第2期227-229,共3页
High Power Laser and Particle Beams
基金
国家863计划项目资助课题
关键词
电荷耦合器件(CCD)
光电响应特性
小孔衍射
Charge coupled dcvice（CCD）
Optics-electron characteristic
Pinhole diffraction
