用于辐射源针孔成像的计算机辅助准直系统

Computer Aided Pinhole Collimating System Based on Dual Laser Theodolides

建立了用于射线针孔成像的计算机辅助厚针孔对心系统。该系统由两台激光经纬仪及调节架、一台数字摄像机(DV)、一台便携计算机及一套专门开发的软件构成,具有辅助聚焦、辅助建立光轴、检验对心效果以及记录对心参数的功能,可缩短对心时间,提高对心精度。介绍了系统的数据处理方法及准直判据。

A computer aided thick pinhole collimating system was developed for X-ray or Gamma ray pinhole imaging applications. This system consists of two laser theodolites and actuators, a digital video camera, a laptop computer and a specifically developed software package. Functions including aided focusing, aided light axis adjustment and parameter recording were implemented. Compared with single light axis method, this system can shorten the collimating adjustment time, and achieve better precision. It can also provide long-term reference axis. Data processing and alignment criterion were discussed.