Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Jehyuk Rhee"'
Autor:
Yuelin Li, Haifeng Zou, David Kline, George M. Williams, Michael J. Haji-Sheikh, Andrew S. Huntington, Eric C. Landahl, Gregg Westberg, Donald A. Walko, Steve Ross, Jehyuk Rhee, Mary Tarpley, Adam Lee
Publikováno v:
Journal of Synchrotron Radiation. 23:196-205
The Voxtel VX-798 is a prototype X-ray pixel array detector (PAD) featuring a silicon sensor photodiode array of 48 × 48 pixels, each 130 µm × 130 µm × 520 µm thick, coupled to a CMOS readout application specific integrated circuit (ASIC). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc9af403bdfa5d1cc10035054ce59f9c
https://doi.org/10.1107/s1600577515018044
https://doi.org/10.1107/s1600577515018044
Publikováno v:
IEEE Sensors Journal. 9:578-585
A robust floating point CMOS image sensor (CIS) is designed and tested. A detailed analysis for signal-to-noise ratio (SNR) of the floating point CIS including the effect of the exponent detection error is presented. Based on the analysis, a simple w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2032251f9bd2b69d289edc573f31c885
https://doi.org/10.1109/jsen.2009.2016595
https://doi.org/10.1109/jsen.2009.2016595
Publikováno v:
2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC).
To allow measurement of the equilibrium density fluctuations on a nanometer-length scale using small angle X-ray scattering, an asynchronous event-driven-address time-stamped (EDATS) pixelated array detector, operational over correlation time spans r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aef8c50eafce364b92003ef79861f429
https://doi.org/10.1109/nssmic.2013.6829833
https://doi.org/10.1109/nssmic.2013.6829833
Publikováno v:
2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC).
The design, manufacture, and test of a two-dimensional pixelated dual-threshold (DT) X-ray photon counting (XPC) detector is described. The DT-XPC detector consists of a 48 × 48-element silicon detector array hybridized to a custom readout integrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c15c5c5dd84e170c0db1d5bf5eb9e3a
https://doi.org/10.1109/nssmic.2013.6829841
https://doi.org/10.1109/nssmic.2013.6829841
Publikováno v:
2008 IEEE Sensors.
A simple and robust self-reset image sensor design using Schmitt trigger circuit is presented. Offset and reset delay accumulations are compensated effectively so that a self-reset CMOS image sensor can exploit signal-to-noise ratio (SNR) improvement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d18faf25cc80227e3ff7559ea4c3b0d7
https://doi.org/10.1109/icsens.2008.4716439
https://doi.org/10.1109/icsens.2008.4716439
Publikováno v:
SPIE Proceedings.
A novel surface plasmon resonance (SPR) sensor system using CMOS image sensor array is proposed in this paper. Recently, a simple SPR system was proposed by the author, which achieved high resolution and fast response time using a bi-cell photo-detec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e07cbaf879cea57e7e57c200dc3f814
https://doi.org/10.1117/12.527131
https://doi.org/10.1117/12.527131
Publikováno v:
Proceedings of IEEE Sensors 2003 (IEEE Cat. No.03CH37498).
In this paper, we present a new low switching noise CMOS logic for on-chip CMOS image sensors, which reduce the switching noise through the substrate. The instantaneous peak current in digital system is the main source of the substrate noise and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd12f9066ae85de84365f6411e250b45
https://doi.org/10.1109/icsens.2003.1279122
https://doi.org/10.1109/icsens.2003.1279122
Autor:
Jehyuk Rhee, Youngjoong Joo
Publikováno v:
The 2002 45th Midwest Symposium on Circuits and Systems, 2002. MWSCAS-2002..
CMOS image sensor system has several clear advantages over CCD image sensor system: selective readout, low power, small size, high frame rate, on-chip functionality, and low cost. However CCD image system still dominates over digital camera market, b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df5e9a17cafb7df1f777743cc513423c
https://doi.org/10.1109/mwscas.2002.1186843
https://doi.org/10.1109/mwscas.2002.1186843
Autor:
Jehyuk Rhee, Youngjoong Joo
Publikováno v:
SPIE Proceedings.
CMOS image sensors have several clear advantages over CCD image sensors: selective readout, low power, small size, high frame rate, on-chip functionality, and low cost. However CCD image system still dominates over digital camera market, because the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::892ce2486934b7533adb5f3cb8536916
https://doi.org/10.1117/12.458064
https://doi.org/10.1117/12.458064
Autor:
Jehyuk Rhee, Youngjoong Joo
Publikováno v:
Electronics Letters. 41:1322
A new dual-mode wide dynamic range CMOS image sensor is designed, which is capable of two different operating modes: logarithmic and floating point mode. The proposed sensor can choose the operating mode manually or adaptively. A prototype pixel is d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a52c3b464c2a750cc997c31748ff819
https://doi.org/10.1049/el:20053477
https://doi.org/10.1049/el:20053477