Spark optical emission camera

full-colorneutronCCD

Real Time Photon Counting Intensified CCD camera The ISIS-4 is an ultra-high gain intensified CCD camera with a double micro-channel plate image intensifier, allowing photon-counting efficiency and ultimate sensitivity. The image intensifier features an extremely low noise photocathode with optimized alkaline content. The resulting Equivalent Background Illumination leads to extremely faint detection limits down to single photon detection. The luminous gain in excess of 300.000 delivered by the dual Micro Channel plate stack lifts the signal of single photon far above the noise of the CCD sensor. The latter is read out at 50Hz, and allows simple hardware integration up to hours if necessary without the need of deep cooling. The special technique of centroiding permits accurate signal registration down to sub pixel accuracy. Optimised electro-optical coupling produces signal to noise ratio comparable to that achieved with standard GaAs (‘third generation’) photocathodes or cryogenically cooled back illuminated CCDs.