Final Report, January 1991 - July 1992

Details Final Report, January 1991 - July 1992 Final Report, January 1991 - July 1992

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992rept.rept.....f&link_type=abstract

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Computer Science

Performance

Cameras, Charge Coupled Devices, Contract Management, Financial Management, Imaging Techniques, Research And Development, Schedules, Soho Mission, Telescopes, Ultraviolet Detectors, Extreme Ultraviolet Radiation, Heliosphere, Quantum Efficiency

Scientific paper

This report covers final schedules, expenses and billings, monthly reports, testing, and deliveries for this contract. The goal of the detector development program for the Solar and Heliospheric Spacecraft (SOHO) EUV Imaging Telescope (EIT) is an Extreme UltraViolet (EUV) CCD (Change Collecting Device) camera. As a part of the CCD screening effort, the quantum efficiency (QE) of a prototype CCD has been measured in the NRL EUV laboratory over the wavelength range of 256 to 735 Angstroms. A simplified model has been applied to these QE measurements to illustrate the relevant physical processes that determine the performance of the detector. The charge transfer efficiency (CTE) characteristics of the Tektronix 1024 X 1024 CCD being developed for STIS/SOHO space imaging applications have been characterized at different signal levels, operating conditions, and temperatures using a variety of test methods. A number of CCD's have been manufactured using processing techniques developed to improve CTE, and test results on these devices will be used in determining the final chip design. In this paper, we discuss the CTE test methods used and present the results and conclusions of these tests.

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