Electronic noise analysis of a 127-um pixel TFT/photodiode array

Richard L. Weisfield; N. Robert Bennett

doi:10.1117/12.430955

28 June 2001 Electronic noise analysis of a 127-μm pixel TFT/photodiode array

Richard L. Weisfield, N. Robert Bennett

Proceedings Volume 4320, Medical Imaging 2001: Physics of Medical Imaging; (2001) https://doi.org/10.1117/12.430955
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

In this paper we examine origins of electronic noise in a 127-micron pixel thin film transistor (TFT)/photodiode image sensor array. The imaging array is a 1536 data line by 1920 gate line amorphous Silicon sensor array connected to low noise charge amplifiers and 14-bit electronics. We measure the contributions of A/D converters, charge amplifiers, data-line resistance and capacitance, and pixel switching to the overall electronic noise of 1040 e^- per pixel. Noise power spectra are evaluated for each dark offset image.

Citation Download Citation

Richard L. Weisfield and N. Robert Bennett "Electronic noise analysis of a 127-μm pixel TFT/photodiode array", Proc. SPIE 4320, Medical Imaging 2001: Physics of Medical Imaging, (28 June 2001); https://doi.org/10.1117/12.430955

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