Performance of the RCA C81020E intensified CCD device

Physics – Optics

Scientific paper

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Charge Coupled Devices, Electrostatics, Fiber Optics, Focusing, Pixels, Arrays, Cameras, Equipment Specifications, Noise Spectra, Quantum Efficiency

Scientific paper

The C81020E is an electrostatically-focused image tube with a fiber-optic window which uses a thinned SID504 CCD operated in electron-bombarded mode to detect accelerated photoelectrons. To evaluate this device, a system was assembled using a commercially available camera electronic chain, a frame grabber, and a microcomputer data acquisition system. Preliminary data on geometric and electronic linearity, dynamic range, and lifetime under electron bombardment indicate that the device could be useful in astronomical applications. It can be used at low light levels in lieu of conventional CCD's, and probably will be satisfactory as a photon counter in the event centroiding mode. The charge cloud produced by the primary appears to spread out over more than one pixel, precluding use of the device as a simple digicon.

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