Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Martin Koniczek"'
Publikováno v:
Medical Physics. 47:3972-3983
Purpose In the spirit of overcoming the signal-to-noise limitations of active matrix, flat-panel imagers (AMFPIs) which employ array circuits based on a-Si:H thin-film transistors (TFTs), an empirical investigation of the noise properties of prototyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8906b8d5d31059fcbc86242df5314f74
https://doi.org/10.1002/mp.14321
https://doi.org/10.1002/mp.14321
Publikováno v:
Medical Physics. 45:4418-4429
PURPOSE Photon counting arrays (PCAs), capable of measuring the spectral information of individual x-ray photons and recording that information digitally, provide a number of advantages compared to conventional, energy-integrating active matrix flat-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e84978ba7eae221b4436cc8d67d51da9
https://doi.org/10.1002/mp.13128
https://doi.org/10.1002/mp.13128
Publikováno v:
Medical Physics. 44:3491-3503
Purpose Active matrix flat-panel imagers, which typically incorporate a pixelated array with one a-Si:H thin-film transistor (TFT) per pixel, have become ubiquitous by virtue of many advantages, including large monolithic construction, radiation tole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc9e996b76b4f100b65e52b8c1c07d42
https://doi.org/10.1002/mp.12257
https://doi.org/10.1002/mp.12257
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Photon counting detectors are of increasing interest for clinical imaging. By measuring and digitally recording the deposited energy of each detected x-ray photon, these detectors can decrease the effect of electronic readout noise and Swank noise, p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08ad5c52448ab01c5fabd53294c8ffe0
https://doi.org/10.1117/12.2512971
https://doi.org/10.1117/12.2512971
Publikováno v:
Physics in Medicine & Biology. 65:035009
The signal-to-noise properties of active matrix, flat-panel imagers (AMFPIs) limit the imaging performance of this x-ray imaging technology under conditions of low dose per image frame. This limitation can affect cone-beam computed tomography (CBCT)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd34d5fef712653a6b5aebbaad76bbdf
https://doi.org/10.1088/1361-6560/ab6577
https://doi.org/10.1088/1361-6560/ab6577
Publikováno v:
SPIE Proceedings.
Pixelated photon counting detectors with energy discrimination capabilities are of increasing clinical interest for x-ray imaging. Such detectors, presently in clinical use for mammography and under development for breast tomosynthesis and spectral C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7af458201ee5b97a9d0e3e127fd1bf5e
https://doi.org/10.1117/12.2216944
https://doi.org/10.1117/12.2216944
Autor:
Larry E. Antonuk, Youcef El-Mohri, Robert A. Street, Jeng Ping Lu, Martin Koniczek, Qihua Zhao, Albert K. Liang
Publikováno v:
Physics in medicine and biology. 61(5)
Photon counting arrays (PCAs), defined as pixelated imagers which measure the absorbed energy of x-ray photons individually and record this information digitally, are of increasing clinical interest. A number of PCA prototypes with a 1 mm pixel-to-pi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc836b169326994744da187efb6a9930
https://pubmed.ncbi.nlm.nih.gov/26878107
https://pubmed.ncbi.nlm.nih.gov/26878107
Autor:
Maike Thamsen, Nicholas J. Niemuth, Ann Kristin Diederich, Daniela Knoefler, Ursula Jakob, Martin Koniczek
Publikováno v:
Molecular Cell. 47(5):767-776
Obstacles in elucidating the role of oxidative stress in aging include difficulties in (1) tracking in vivo oxidants, in (2) identifying affected proteins, and in (3) correlating changes in oxidant levels with life span. Here, we used quantitative re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c37cc293c0b6be820ca0b0570a88974
Autor:
Qihua Zhao, Youcef El-Mohri, Jeng Ping Lu, Yixin Li, Larry E. Antonuk, Martin Koniczek, Robert A. Street
Publikováno v:
Medical Physics. 36:3340-3355
Active matrix, flat-panel imagers (AMFPIs) employing a 2D matrix of a-Si addressing TFTs have become ubiquitous in many x-ray imaging applications due to their numerous advantages. However, under conditions of low exposures and/or high spatial resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98c9c095105c9f54304e0b1d571e63be
https://doi.org/10.1118/1.3116364
https://doi.org/10.1118/1.3116364
Publikováno v:
IEEE Transactions on Nuclear Science. 56:1153-1158
We present a 16-channel self triggered readout chip for simultaneous time and energy measurement, suitable for a wide range of applications. All circuit elements required for detector readout are integrated on the chip. A fast, low-noise discriminato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f439c3d017cd199349fbaaf7fd076fa4
https://doi.org/10.1109/tns.2008.2008807
https://doi.org/10.1109/tns.2008.2008807