Charge transfer efficiency measurements at low signal levels on STIS/SOHO TK1024 CCDs

Jeffrey D. Orbock; Debbie Murata-Seawalt; Alan W. Delamere; Morley M. Blouke

doi:10.1117/12.19459

1 July 1990 Charge transfer efficiency measurements at low signal levels on STIS/SOHO TK1024 CCDs

Jeffrey D. Orbock, Debbie Murata-Seawalt, Alan W. Delamere, Morley M. Blouke

Proceedings Volume 1242, Charge-Coupled Devices and Solid State Optical Sensors; (1990) https://doi.org/10.1117/12.19459
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

Charge transfer efficiency (CTE) test methods are reviewed, and the results and conclusions of the tests are given. The test methods have been utilized to describe the CTE characteristics of the Tektronix 1024 by 1024 CCD to optimize low dark current, low readout noise, and high CTE at low signal levels. CTE modelling is described, and three test methods are set forth and compared. The Fe-55 X-ray response method utilizes the response of a CCD to X-ray photons from the radioactive source Fe-55. The extended pixel edge response method employs the measurement of the charge lost to successive pixels by a known initial signal as it is shifted through the array. The charge injection method consists of charge injection through the output amplifier reset transistor. These measurements were performed on several devices with known CTEs. The CTEs are found to be in agreement for the three methods, making application and test requirements the principal criteria for their use.

Citation Download Citation

Jeffrey D. Orbock, Debbie Murata-Seawalt, Alan W. Delamere, and Morley M. Blouke "Charge transfer efficiency measurements at low signal levels on STIS/SOHO TK1024 CCDs", Proc. SPIE 1242, Charge-Coupled Devices and Solid State Optical Sensors, (1 July 1990); https://doi.org/10.1117/12.19459

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