Search Results - "Antonuk, L. E."

Empirical and theoretical investigation of the noise performance of indirect detection, active matrix flat-panel imagers (AMFPIs) for diagnostic radiology by Siewerdsen, J. H., Antonuk, L. E., El-Mohri, Y., Yorkston, J., Huang, W., Boudry, J. M., Cunningham, I. A.

“…Noise properties of active matrix, flat-panel imagers under conditions relevant to diagnostic radiology are investigated. These studies focus on imagers based…”
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Signal, noise power spectrum, and detective quantum efficiency of indirect-detection flat-panel imagers for diagnostic radiology by Siewerdsen, J. H., Antonuk, L. E., El-Mohri, Y., Yorkston, J., Huang, W., Cunningham, I. A.

“…The performance of an indirect-detection, active matrix flat-panel imager (FPI) at diagnostic energies is reported in terms of measured and theoretical signal…”
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Strategies to improve the signal and noise performance of active matrix, flat-panel imagers for diagnostic x-ray applications by Antonuk, L. E., Jee, K.-W., El-Mohri, Y., Maolinbay, M., Nassif, S., Rong, X., Zhao, Q., Siewerdsen, J. H., Street, R. A., Shah, K. S.

“…A theoretical investigation of factors limiting the detective quantum efficiency (DQE) of active matrix flat-panel imagers (AMFPIs), and of methods to overcome…”
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Additive noise properties of active matrix flat-panel imagers by Maolinbay, M., El-Mohri, Y., Antonuk, L. E., Jee, K.-W., Nassif, S., Rong, X., Zhao, Q.

“…A detailed theoretical and empirical investigation of additive noise for indirect detection, active matrix flat-panel imagers (AMFPIs) has been performed. Such…”
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Determination of the detective quantum efficiency of a prototype, megavoltage indirect detection, active matrix flat-panel imager by El-Mohri, Youcef, Jee, Kyung-Wook, Antonuk, Larry E., Maolinbay, Manat, Zhao, Qihua

“…After years of aggressive development, active matrix flat-panel imagers (AMFPIs) have recently become commercially available for radiotherapy imaging. In this…”
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Relative dosimetry using active matrix flat-panel imager (AMFPI) technology by El-Mohri, Y., Antonuk, L. E., Yorkston, J., Jee, K.-W., Maolinbay, M., Lam, K. L., Siewerdsen, J. H.

“…The first examination of the use of active matrix flat-panel arrays for dosimetry in radiotherapy is reported. Such arrays are under widespread development for…”
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Empirical investigation of the signal performance of a high-resolution, indirect detection, active matrix flat-panel imager (AMFPI) for fluoroscopic and radiographic operation by Antonuk, L. E., El-Mohri, Y., Siewerdsen, J. H., Yorkston, J., Huang, W., Scarpine, V. E., Street, R. A.

“…Signal properties of the first large-area, high resolution, active matrix, flat-panel imager are reported. The imager is based on an array of 1536×1920 pixels…”
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Initial performance evaluation of an indirect-detection, active matrix flat-panel imager (AMFPI) prototype for megavoltage imaging by Antonuk, L E, El-Mohri, Y, Huang, W, Jee, K W, Siewerdsen, J H, Maolinbay, M, Scarpine, V E, Sandler, H, Yorkston, J

“…The development of the first prototype active matrix flat-panel imager (AMFPI) capable of radiographic and fluoroscopic megavoltage operation is reported. The…”
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Radiation damage of amorphous silicon, thin-film, field-effect transistors by Boudry, J M, Antonuk, L E

“…The effect of 60Co radiation on the noise and drain-source current characteristics of hydrogenated amorphous silicon (alpha-Si:H) field-effect transistors…”
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Demonstration of megavoltage and diagnostic x-ray imaging with hydrogenated amorphous silicon arrays by Antonuk, L E, Boudry, J, Huang, W, McShan, D L, Morton, E J, Yorkston, J, Longo, M J, Street, R A

“…Flat-panel imagers consisting of the first large area, self-scanning, pixelated, solid-state arrays made with hydrogenated amorphous silicon (a-Si:H) are under…”
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Charge trapping at high doses in an active matrix flat panel dosimeter by Roberts, D.A., Moran, J.M., Antonuk, L.E., El-Mohri, Y., Fraass, B.A.

“…Active matrix flat panel dosimeters (AMFPDs) have a high density of charge trapping centers (/spl sim/3/spl times/10/sup 15//cm/sup 3/) which lead to both lag…”
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Megavoltage imaging with a large-area, flat-panel, amorphous silicon imager by Antonuk, L E, Yorkston, J, Huang, W, Sandler, H, Siewerdsen, J H, el-Mohri, Y

“…The creation of the first large-area, amorphous silicon megavoltage imager is reported. The imager is an engineering prototype built to serve as a stepping…”
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WE‐C‐342‐02: The Future of Flat Panel Imagers: From Active Matrix to Active Pixel Architectures and Many Possibilities in Between by Antonuk, LE

“…Since the turn of the century, the phrase “Flat Panel Imager” has been increasingly used in modern x‐ray imaging venues ranging from large, institutional…”
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A real-time, flat-panel, amorphous silicon, digital x-ray imager by Antonuk, L E, Yorkston, J, Huang, W, Siewerdsen, J H, Boudry, J M, el-Mohri, Y, Marx, M V

“…As part of the development necessary for implementing a fully digital radiology department, the authors have investigated thin-film photodiodes and transistors…”
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An asynchronous, pipelined, electronic acquisition system for Active Matrix Flat-Panel Imagers (AMFPIs) by Huang, W., Antonuk, L.E., Berry, J., Maolinbay, M., Martelli, C., Mody, P., Nassif, S., Yeakey, M.

“…The development of a full-custom electronic acquisition system designed for readout of large-area active matrix flat-panel imaging arrays is reported. The…”
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Radiation damage of amorphous silicon photodiode sensors by Boudry, J.M., Antonuk, L.E.

“…The effect of /sup 60/Co radiation on the leakage current behavior of hydrogenated amorphous silicon photodiode sensors has been investigated. These sensors,…”
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Medical physicists should seek patent protection for new ideas before publishing articles about them by Antonuk, L. E., Sprawls, Perry

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A quantitative investigation of additive noise reduction for active matrix flat-panel imagers using compensation lines by El-Mohri, Y., Antonuk, L. E., Zhao, Q., Maolinbay, M., Rong, X., Jee, K.-W., Nassif, S., Cionca, C.

“…A quantitative investigation of a technique for reducing correlated noise in indirect detection active matrix flat-panel imagers has been reported. Correlated…”
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Fabrication of high aspect-ratio polymer microstructures for large-area electronic portal X-ray imagers by Daniel, J.H., Sawant, A., Teepe, M., Shih, C., Street, R.A., Antonuk, L.E.

“…Megavoltage X-ray imaging performed during radiotherapy is the method of choice for geometric verification of patient localization and dose delivery…”
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MO‐D‐I‐6B‐02: Active Matrix, Flat‐Panel Imagers: From Rigid and Simple to Flexible and Smart by Antonuk, LE

“…Almost two decades of intensive research and development have transformed the concept of capturing x‐ray images with large area, solid‐state devices based on…”
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