Conclusion And Outlook

We have presented the setup and performance measurements of a CCD detector system, running at a speed of almost 1100 frames/sec with an electronic noise contribution of 2.3 electrons ENC. The operating temperature was -55°C, so thermoelectric cooling could also be implanted. The uniform and temporal stable noise behavior allows for reliable threshold setting. The combination of exceptionally high quantum efficiency and low readout noise with high speed operating modes makes this detector superior to many other concepts used in wavefront sensors.

Parallel to the detector, we setup the entire DAQ-system to operate the detector system at frame rates of 1000 Hz and faster. Due to the described decentral data handling and data reduction, the system is able to handle pixel rates of more than 70 megapixel per second.

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Figure 6. Spectroscopic measurement of carbon K-line with an energy of 277 eV, corresponding to a generation of 76 signal electrons per photon. This is a spectrum of all reconstructed events. In case of regarding merely single events, the FWHM reduces to 45 eV from 48 eV. The operating temperature was -55°C.

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Figure 6. Spectroscopic measurement of carbon K-line with an energy of 277 eV, corresponding to a generation of 76 signal electrons per photon. This is a spectrum of all reconstructed events. In case of regarding merely single events, the FWHM reduces to 45 eV from 48 eV. The operating temperature was -55°C.

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