Charge injection devices for use in astronomy

Zoran Ninkov; Chen Tang; Brian S. Backer; Roger L. Easton Jr.; Joseph Carbone

doi:10.1117/12.176688

1 June 1994 Charge injection devices for use in astronomy

Zoran Ninkov, Chen Tang, Brian S. Backer, Roger L. Easton Jr., Joseph Carbone

Proceedings Volume 2198, Instrumentation in Astronomy VIII; (1994) https://doi.org/10.1117/12.176688
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

Arrays of silicon sensors arranged in a CCD focal plane architecture have become the detector of choice for astronomical imaging in the 300 nm to 1 micron region. However other focal plane architectures offer attractive additional features such as allowing for random access to, and readout of, any subarray on the chip, and the nondestructive interrogation of the signal level of any pixel. A 512 x 512 pixel array utilizing a Charge Injection architecture that offers such advantages has been tested at liquid nitrogen temperature as to its suitability for use in astronomy. Laboratory tests show that using nondestructive readouts results in a (root)N (where N is the number of readouts) improvements in the noise figure (approximately 20 electrons rms noise after 100 reads). Initial images with a CID-38 of a number of astronomical objects are also presented.

Citation Download Citation

Zoran Ninkov, Chen Tang, Brian S. Backer, Roger L. Easton Jr., and Joseph Carbone "Charge injection devices for use in astronomy", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176688

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