Measurements of an intensified CCD detector for the Solar and Heliospheric Observatory

Astronomy and Astrophysics – Astronomy

Scientific paper

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Charge Coupled Devices, Heliosphere, Microchannel Plates, Quantum Efficiency, Solar Observatories, Ultraviolet Astronomy, Design Analysis, Extreme Ultraviolet Radiation, Light Scattering, Linearity

Scientific paper

An engineering model intensified CCD detector for the SOHO Coronal Diagnostics Spectrometer has been built and tested at the NASA Goddard Space Flight Center. A windowless MCP intensifier tube converts EUV radiation (30-65 nm) into visible light, which is focused via a lens system onto a Tektronix 1024 x 1024 CCD. Tests have been made of this engineering model to determine the following characteristics: quantum efficiency, resolution, throughput, linearity, statistical variation, readout noise, scattering, and flat-field response. In almost all respects, the detector performed as expected. This detector has been delivered, and work is underway on the flight detector.

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