理想光子探测器背景探测极限理论的误差分析  

The Error Analysis of Limit Theory about Background Survey by the Ideal Photon Detector

作　　者：任宏岩[1] 周冰[1] 段晓峰[1] 应家驹[1] 

机构地区：[1]军械工程学院光学工程教研室,石家庄050003

出　　处：《光子学报》2005年第3期369-371,共3页Acta Photonica Sinica

摘　　要：对于受背景噪声限制的理想光子探测器,利用普朗克分布函数进行推导,得到了较为精确的比探测率公式,并与传统的近似公式对比,进行了误差分析结果表明传统的近似公式误差量很小。Using Planck′s formula, accurate formula of specific detectivity is got for ideal photon detector limited to background noise. Contrasting accurate formula with traditional approximate formula, the error analysis has been done. The results show that the error of approximate formula is quite small and it can be used generally.

关 键 词：光子探测器 背景噪声 比探测率 误差分析 

分 类 号：TN21[电子电信—物理电子学]