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A fast monolithic active pixel sensor with pixel-level reset noise suppression and binary outputs for charged particle detection

Abstract : In order to develop precision vertex detectors for the future linear collider, fast monolithic active pixel sensors are studied. A standard CMOS 0.25$mu$m digital process is used to design a test chip which includes different pixel types, column-level discriminators, and a fully programmable digital sequencer. In-pixel amplification is implemented together with double sampling. Different charge-to-voltage conversion factors were obtained using amplifiers with different gains or diode sizes. Pixel architectures with dc and ac coupling to charge sensing element were proposed. Hits from conversion of $^55$Fe photons were recorded for the dc-coupled and ac-coupled pixel versions. Double sampling is functional and allows almost a complete cancellation of fixed pattern noise.
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http://hal.in2p3.fr/in2p3-00025737
Contributor : Béatrice Forrler <>
Submitted on : Monday, January 8, 2007 - 10:23:28 AM
Last modification on : Thursday, April 23, 2020 - 2:26:21 PM
Long-term archiving on: : Saturday, April 3, 2010 - 10:42:39 PM

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Y. Degerli, G. Deptuch, N. Fourches, A. Himmi, Y. Li, et al.. A fast monolithic active pixel sensor with pixel-level reset noise suppression and binary outputs for charged particle detection. IEEE 2004 Nuclear Science Symposium and Medical Imaging Conference, Oct 2004, Rome, Italy. pp.3186-3193, ⟨10.1109/TNS.2005.862931⟩. ⟨in2p3-00025737⟩

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