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公开(公告)号：JP2003204484A
公开(公告)日：2003-07-18
申请号：JP2002299991
申请日：2002-10-15
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS , YANOFF BRIAN DAVID , TKACZYK JOHN ERIC , POSSIN GEORGE EDWARD , XUE PING
Abstract: PROBLEM TO BE SOLVED: To reduce an artifact mixed by a transition from a high radiation to a fluoroscopic-mode utilizing a low irradiation. SOLUTION: A method for processing a fluoroscopic image contains a method (30) for processing the fluoroscopic image provided in one example, a process (32) in which an object (12) is scanned by one or more of radiation sources (14), a process (34) in which a plurality of dark images are gained for forming a baseline image, a process (36) in which a plurality of delay images are gained in succession to the baseline image, a process (38) in which a plurality of parameters by an exponentiation rule are decided by using one or more of the delay images and one or more of the baseline images, and a process (40) in which a logarithm-to-logarithm extrapolation by the exponentiation rule containing the decided parameters is executed. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2001215280A
公开(公告)日：2001-08-10
申请号：JP2000327895
申请日：2000-10-27
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS , KWASNICK ROBERT FORREST , GIAMBATTISTA BRIAN WILLIAM
Abstract: PROBLEM TO BE SOLVED: To provide digital imaging executed through conversion from radiation into visible light incident on a light sensitive imaging array. SOLUTION: A light absorption layer 150 reduces the quantity of light incident on a light sensitive imaging region 130 from a scintillator 180, and avoids saturation of the light sensitive imaging array 120, and, on the other hand, enables use of higher-energy radiation for parts inspection. The absorption layer 150 also reduces the quantity of light incident on switching devices 140 and suppresses leakage between the switching devices 140 just reading. In the case where the scintillator 180, such as a cesium iodide scintillator which is preferentially absorbing blue light continuously or the like, is deteriorated with the lapse of time, preferably the absorption layer 150 mainly absorbs blue light from the scintillator 180, so that calibration of this radiation imaging device 100 is not changed with the lapse of time. The absorption layer 150 is preferably an absorption barrier layer having p-type doped amorphous silicon.
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公开(公告)号：JP2001160923A
公开(公告)日：2001-06-12
申请号：JP2000260019
申请日：2000-08-30
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS
Abstract: PROBLEM TO BE SOLVED: To provide an artifact compensation system that provides an image with high image quality by compensating a capacitive coupling artifact, in a signal generated from a matrix address type X-ray image pickup panel. SOLUTION: Each amplifier 146 amplifier data of an output signal line 118 of each detection cell 116 in an X-ray image pickup panel 15, while all scanning lines 117 controlled by a scanning controller 145 are nonconductive, an amplification signal processor 120 in a processor 150 reads a plurality of inductive signals in the output signal of the amplifier 146, accumulates them to a memory 122, a mean value computing element 126 averages them and stores the result to a mean value memory 124. In the normal operation of the image pickup panel 15, the image signal from the amplifier 146 is given to a corrected image signal computing element 128 as a 2nd output of the amplifier signal processor 120, and the computing element 128 subtracts the mean value received from the mean value memory from the 2nd output to compensate the capacitive coupling artifact and provides an image signal, corresponding to each amplifier to a display device 132.
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公开(公告)号：JP2004006780A
公开(公告)日：2004-01-08
申请号：JP2003098710
申请日：2003-04-02
Applicant: GEN ELECTRIC
Inventor： LEE JI UNG , ALBAGLI DOUGLAS , POSSIN GEORGE EDWARD , WEI CHING-YEU
Abstract: PROBLEM TO BE SOLVED: To provide a radiation detector for imaging array comprising a top gate thin film transistor (TFT). SOLUTION: The radiation detector (18) includes the top gate thin film transistor (28), and the TFT includes a source electrode (50), a drain electrode (52), a gate electrode (66), a primary dielectric layer (59) and a second dielectric layer (62). Extending therethrough of the second dielectric layer is carried out so that a front surface of the primary dielectric layer may be covered. The radiation detector also includes a capacitor (24) having electrodes (53, 68) and dielectric layer of duplicate at least. Dielectric layer (64) of the capacitor is formed in the second dielectric layer and one piece of the TFT. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JPH11202053A
公开(公告)日：1999-07-30
申请号：JP28364098
申请日：1998-10-06
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS , KWASNICK ROBERT FORREST , POSSIN GEORGE EDWARD
IPC: G01T1/20
Abstract: PROBLEM TO BE SOLVED: To provide an imaging device in which spatial resolution has been improved. SOLUTION: A device includes a scintillator 150 with first and second surfaces 160 and 162, a photo sensor array 110 that is optically coupled to the second surface of the scintillator, and an optical crosstalk attenuation means 200 that is optically coupled to the first surface of the scintillator, is arranged for preventing a photon entering the first surface of the scintillator from being reflected along a crosstalk reflection path 185 and returning into the scintillator, and has at least a light-absorbing material. The device further preferably includes an optical screen layer that is optically coupled to the second surface of the scintillator and is constituted by an essentially transparent material with a critical refractive index that is selected so that an entering photon is selectively reflected toward the inside to reduce optical crosstalk.
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Patent Agency Ranking
公开(公告)号：JP2001190531A
公开(公告)日：2001-07-17
申请号：JP2000331597
申请日：2000-10-31
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS
Abstract: PROBLEM TO BE SOLVED: To improve the image quality without increasing the dosage of X-rays to a patient in an imaging system. SOLUTION: A radiation spectrum filter 14 is provided in the imaging system 10. The radiation filter 14 is formed of a material having a large atomic number in order to remove X-rays having low energy and X-rays having high energy through a subject 16 by filtering.
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公开(公告)号：FR2847418B1
公开(公告)日：2009-12-11
申请号：FR0312870
申请日：2003-11-03
Applicant: GEN ELECTRIC
Inventor： YANOFF BRIAN DAVID , ALBAGLI DOUGLAS
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公开(公告)号：FR2926164A1
公开(公告)日：2009-07-10
申请号：FR0950085
申请日：2009-01-08
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS , COUTURE AARON JUDY , HENNESSY WILLIAM ANDREW , KUMP KENNETH SCOTT , GAO FENG , LIU JAMES ZHENGSHE
IPC: H01L27/144 , G01T7/00 , H04N5/217 , H04N5/32 , H04N5/369
Abstract: Dispositif de détection (33) à double fonction, fonctionnant soit en mode de fonctionnement normal soit en mode à correction de PEM afin de supprimer des effets de PEM à l'intérieur du détecteur (33). Le dispositif de détection (33) peut être un détecteur de rayons X à panneau plat utilisé dans des systèmes d'imagerie radiographique. Le dispositif a une architecture de pixels et une technique de lecture de panneau permettant une mesure en temps réel, à une fréquence spatiale élevée, du bruit induit par le rayonnement électromagnétique sur un détecteur numérique (33) de rayons X. La mesure peut servir à étalonner en temps réel le détecteur pour parvenir à une imagerie sans artefacts dans tous les environnements, dont ceux qui contiennent des champs électromagnétiques variant dans le temps et dans l'espace.
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公开(公告)号：FR2848728B1
公开(公告)日：2008-02-22
申请号：FR0314449
申请日：2003-12-10
Applicant: GEN ELECTRIC
Inventor： POSSIN GEORGE EDWARD , KWASNICK ROBERT FORREST , ALBAGLI DOUGLAS
IPC: H01L31/10 , H01L21/00 , H01L21/84 , H01L27/14 , H01L27/144 , H01L27/146 , H01L31/0232
Abstract: The production of an imaging array comprises forming a first dielectric barrier (66); forming a light block (68) on the first dielectric barrier, where the light block is coextensive with a gate; and forming a second dielectric barrier (70) on the first dielectric barrier and the light block, such that the light block is encapsulated between the first and second dielectric barriers. An Independent claim is also included for a medical imaging system comprising a radiation source; and a radiation detector operationally coupled to the radiation source, and comprising the imaging array.
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公开(公告)号：FR2884053A1
公开(公告)日：2006-10-06
申请号：FR0602783
申请日：2006-03-30
Applicant: GEN ELECTRIC
Inventor： ALBAGLI DOUGLAS , HENNESSY WILLIAM ANDREW
IPC: H01L29/786 , H01L27/146 , H01L31/119
Abstract: Un détecteur comprend une électrode formée à partir d'une première couche de matériau conducteur, une ligne de lecture formée à partir d'une deuxième couche de matériau conducteur, et un passage (50) connectant électriquement la ligne de lecture et l'électrode, le détecteur comprenant une électrode de source (38) et une électrode de drain (40) formées à partir de la première couche de matériau conducteur, et une ligne de données (44) formée à partir d'une deuxième couche de matériau conducteur, de telle sorte que les électrodes de source (38) et de drain (40) soient verticalement décalées de la ligne de données (44).
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