生物超微弱发光的光子计数成象方法  

The Photon Cunting Imaging Method for Very Faint Luminescence in Organism

作　　者：王晓辉[1] 胡新奇[1] 王苏生[1] 俞信[1] 曹根瑞[1] 

机构地区：[1]北京理工大学光电工程系

出　　处：《光电工程》1997年第6期50-53,共4页Opto-Electronic Engineering

摘　　要：介绍了我们研制和设计的用于测量生物超微弱发光的光子计数成象系统，包括光子成象头、高帧频ＣＣＤ摄象机、图象采集系统和计算机，可以定量地探测出生物的发光强度分布，还能够显示出其发光的图象，确定发光的形状和位置，本系统的信噪比为１０∶１，最小探测功率达１０－１６Ｗ，灵敏度高，动态范围大。使用本系统研究者可以从全新的角度进行深入的医学和生物学研究。A photon counting imaging system consisting of photon imaging head,high frame frequency CCD camera,image sampling system and computer for measuring very low light level luminescence in organism has been developed and designed.It can quantitatively detect the luminescent intensity distribution of organism,display its luminescent image,determine its luminescent shape and position.The SNR of the system is 10∶1 and the minimal detecting power is as low as 10 -16 W.The system has high sensitivity and a large dynamic range.With the system the researchers can investigate medical science and biology from a new angle.

关 键 词：光子计数 成象系统 生物发光 信号检测 

分 类 号：Q63[生物学—生物物理学]