人体超微弱发光图像中的信号检验

SIGNAL TESTING IN ULTRA-WEAK BIOLUMINESCENCE IMAGE OF HUMAN HAND

用近期研制的具有单光子探测能力的超高灵敏度成像系统获得了人体体表生物超微弱发光的强度数据。为分析图像中的信号检验，二项分布被用于人手不同时间累积发光图像中的信号显著性检验，证实人手存在超微弱生物发光，手指的发光强度在３００～５５０ｐｈｏｔｏｎｓ／ｓ范围内，全手的发光强度在８５０～１２００ｐｈｏｔｏｎｓ／ｓ范围内。

For the first time, ultra-weak bioluminescence hages and light intheity of human bodysurface have been obtained by an ultra-sensitive imaging system which was recently developed and has single photon detecting ability. To analyse the signal test, binomial probability law was used for significance testing of signals in the images emitted from human hand in different period of time, which proved that human hand can emit ultra-weak bioluminscence, the photon inensity emitted from fingers is in the range of 300～550 photons/s and the whole hand in 850～1200 photons/s.