Based on analysis on transmission property of red laser beam, impact from background light, attenuation and scintillation are discussed.
基于对红光激光束大气传输特性的分析，讨论了激光束传输过程中背景光干扰、大气衰减和湍流效应的影响。
2
Base on the systematic analysis to the positioning algorithms for the scintillation gamma cameras, a centroid guided 3d maximum likelihood positioning algorithm was proposed.