Kaznacheev

The paper demonstrates the characteristic features of images registered at quite low fluxes of optical radiation, in which each element (pixel) of the photosensitive matrix has one photon in average. It also considers noise characteristics of the image detector of the newest type i.e. CCD with internal electronic multiplication (Electron Multiplying CCD, EMCCD). It is shown that the internal electron multiplication can significantly improve the signal-to- noise ratio of CCD detector and approach to the theoretical limit of sensitivity, limited by photon noise.Based on the EMCCD sensor TV device has been designed and created. It enables a record of images at ultra-low light levels of the order of 10e-4 lx.