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公开(公告)号：US20190146098A1
公开(公告)日：2019-05-16
申请号：US16300107
申请日：2017-06-07
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Ewald ROESSL , Roger STEADMAN BOOKER
Abstract: The invention relates to a correction device (8) for a radiation detector (2) including detector elements each for detecting incident photons. The correction device (8) is configured to read detection signals representative of an incident photon flux detected by the detector elements for different incident photon fluxes, and an evaluation unit (11) configured to determine for each detector element a dead time of the detector element and a parameter representative of an effective area of the detector element on the basis of a collective evaluation of the detection signals of the respective detector element. Further, the correction device (8) is configured to determine for each detector element correction parameters to compensate for differences in the effective areas and in the dead times of the detector elements on the basis of the determined parameters representative of the effective area and the determined dead times of the detector elements.
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公开(公告)号：US20170227658A1
公开(公告)日：2017-08-10
申请号：US15118911
申请日：2015-11-02
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger STEADMAN BOOKER , Amir LIVNE
IPC: G01T1/24 , A61B6/00 , H01L27/146 , A61B6/03
CPC classification number: A61B6/4241 , A61B6/03 , A61B6/4208 , A61B6/4233 , G01T1/24 , G01T1/243 , H01L27/14618 , H01L27/14636 , H01L27/14658
Abstract: The present invention relates to a sensor device for detecting radiation signals. To enable high signal integrity and cost efficiency while maintaining the capability of being four-sidedly buttable, the proposed sensor device comprises a sensor array (22) comprising a plurality of detectors (11, 11a-d), a sensor element (14) for converting said received radiation signals (74, 74′) into a plurality of corresponding electric signals, an interposer element (16, 16a-d) extending laterally between a first side (28) and a second side (30), and an integrated circuit element (18, 18a-d). The interposer element (16, 16a-d) comprises a front surface (24) facing said sensor element (14) and a back surface (26) parallel to said front surface (24), wherein a front contact arrangement (36) is provided on said front surface (24) for directing said electric signals to a back contact arrangement (40) provided on said back surface (26). The integrated circuit element faces said back surface (26) and is electrically connected to said back contact arrangement (40).
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公开(公告)号：US20180356541A1
公开(公告)日：2018-12-13
申请号：US15778847
申请日：2016-12-02
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger STEADMAN BOOKER , Carolina RIBBING , Walter RUETTEN , Gereon VOGTMEIER
CPC classification number: G01T1/243 , G01T1/161 , G01T1/17 , G01T1/2018 , G01T1/241 , G01T1/244 , G01T1/247 , G01T1/249
Abstract: The present invention relates to a radiation detector, in particular a direct conversion radiation detector. To provide for simple distribution of provided high voltage the radiation detector comprises a plurality of detector modules (10, 20) arranged adjacent to each other. Each detector module comprises a sensor layer (14, 24) for converting incident radiation (100) into electrical charges, a first electrode (15, 25) deposited on a first surface of the sensor layer facing the incident radiation (100), a second electrode (16, 26) deposited on a second surface of the sensor layer opposite the first surface, a readout electronics (12, 22) in electrical contact with the second electrode, and a carrier (13, 23) for carrying the sensor layer and the readout electronics. The radiation detector further comprises an electrically conductive conduction layer (30, 32, 50) and an anti-scatter arrangement (40), which are arranged on top of each other and cover the plurality of detector modules on the side facing the incident radiation (100).
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公开(公告)号：US20180284035A1
公开(公告)日：2018-10-04
申请号：US15765726
申请日：2016-10-12
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger STEADMAN BOOKER , Ewald ROESSL
IPC: G01N23/046 , A61B6/03 , A61B6/00
Abstract: The present invention relates to a dual- or multi-source CT system and method. For suppressing or even completely eliminating the negative effects of cross-scatter, the proposed CT system comprises two x-ray sources (10, 11), two detectors (13, 14), two read-out units (15, 16), a control unit (17) and a reconstruction unit (19). Further, a scatter correction unit (18) is provided or the read-out units (15, 16) are configured to generate scatter-corrected read-out signals from the detected radiation, wherein a scatter-corrected read-out signal is generated from the radiation detected by a detector during a single projection interval (I) including multiple repetitions of three phases, in which the sources are alternately switched on and off and in which the read-out units alternately register primary radiation or cross-scatter radiation.
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公开(公告)号：US20220175328A1
公开(公告)日：2022-06-09
申请号：US17611596
申请日：2020-05-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Herfried Karl WIECZOREK , Roger STEADMAN BOOKER , Peter Lex ALVING
IPC: A61B6/00
Abstract: The invention relates to a system for imaging an object in an x-ray imaging mode and in a gamma imaging mode. A radiation detector (1) of the system comprises a conversion unit (202) including a plurality of detector pixels (2061, . . . ,M) and generating for each detection event a detection signal indicative of an energy of the event, and a counting unit (203) including for each detector pixel (2061, . . . ,M) a plurality of comparators (209i; 1, . . . ,N) and associating each detection event to one of a plurality of predetermined energy bins based on the detection signals using the comparators (209i; 1, . . . ,N). In the x-ray imaging mode, the comparators (209i; 1, . . . ,N) of one pixel (2061, . . . ,M), and in the gamma imaging mode, the comparators (209i; 1, . . . ,N) of several pixels (2061, . . . ,M) are available for the association so that more energy bins are available in the gamma imaging mode than in the x-ray imaging mode.
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Patent Agency Ranking
公开(公告)号：US20190170880A1
公开(公告)日：2019-06-06
申请号：US15756620
申请日：2016-09-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger STEADMAN BOOKER , Christoph HERRMANN , Amir LIVNE
IPC: G01T1/17
Abstract: The present invention relates to the correction of a detector signal d by superposing the detector signal with a correction signal. For providing a valid correction signal, a sampling pulse Ps is periodically or randomly provided. This sampling pulse serves as the initiator for sampling a process signal p of a process unit (14), which is configured to process the corrected detector signal. During the sampling of the process signal, the process signal is observed. In case a pulse at the process signal is detected, the sampling is assumed as not being suitable to correct the detector signal, since the pulse affects the process signal. Otherwise, namely in case such a process signal pulse does not occur during the sampling period, the process signal is further observed during a validation period, which is subsequently arranged to the sampling period. This validation period is used to validate, whether the sampled process value of the process signal has already been influenced by an upcoming pulse at the process signal. In case the sampling is assumed as valid, the sampled process value is used as a basis for providing, in particular setting or updating, the correction signal. An updated or a new set correction signal in turn changes the baseline of the corrected detector signal. As an effect of the invention, the baseline of the corrected detector signal may be corrected independent of the direct knowledge of a timing, at which an X-ray source provides X-ray radiation to the object-receiving space and/or at least a part thereof to an X-ray detector (42). Therefore, the invention may be applied to any X-ray imaging system, independently of the knowledge, when X-ray quanta and/or X-ray photons impinge on the X-ray detector.
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公开(公告)号：US20170258412A1
公开(公告)日：2017-09-14
申请号：US15108401
申请日：2015-12-01
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Heiner DAERR , Roger STEADMAN BOOKER , Gereon VOGTMEIER , Ewald ROESSL , Gerhard MARTENS , Carolina RIBBING
CPC classification number: A61B6/032 , A61B6/06 , A61B6/4042 , A61B6/4078 , A61B6/4241 , A61B6/482 , A61B6/485 , A61B6/582 , H05G1/30 , H05G1/58
Abstract: The invention relates to a system (31) for generating spectral computed tomography projection data. A spectral projection data generation device (6) comprising an energy-resolving detector generates spectral computed tomography projection databased on polychromatic radiation (4), which has been provided by a radiation device (2), after having traversed an examination zone (5), and a reference values generation device generates energy-dependent reference values based on radiation, which has not traversed the examination zone. A spectral parameter providing unit (12) provides a spectral parameter being indicative of a spectral property of the radiation device based on the energy-dependent reference values. In particular, spectral properties of the radiation device can be monitored over time, wherein this information can be used for, for instance, correcting the spectral computed tomography projection data, and/or, if undesired spectral properties of the radiation device are indicated, triggering a replacement of the radiation device.
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公开(公告)号：US20160274249A1
公开(公告)日：2016-09-22
申请号：US15035515
申请日：2014-11-17
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Gereon VOGTMEIER , Roger STEADMAN BOOKER
CPC classification number: G01T1/2018 , A61B6/032 , A61B6/037 , A61B6/0407 , A61B6/4447
Abstract: The present invention relates to a detection module (22) for the detection of ionizing radiation emitted by a radiation source (20) comprising a scintillator element (24) for emitting scintillation photons in response to incident ionizing radiation, a first photosensitive element (32a) optically coupled to the scintillator element (24) for capturing scintillation photons (30) and a flexible substrate (34) for supporting the first photosensitive element (32a). The present invention also relates to an imaging device (10) that comprises such a detection module (22).
Abstract translation: 本发明涉及一种用于检测由辐射源（20）发射的电离辐射的检测模块（22），包括用于响应于入射电离辐射而发射闪烁光子的闪烁器元件（24），第一感光元件（32a） 光学耦合到用于捕获闪烁光子的闪烁体元件（24）和用于支撑第一光敏元件（32a）的柔性基板（34）。 本发明还涉及一种包括这种检测模块（22）的成像装置（10）。
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公开(公告)号：US20210041580A1
公开(公告)日：2021-02-11
申请号：US16978855
申请日：2019-02-25
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Roger STEADMAN BOOKER , Roland PROKSA
Abstract: The present invention relates to a detection device for X-rays, an imaging system and a method for detecting electro-magnetic radiation using a detection device for X-rays, wherein an estimate of an incomplete measurement is acquired prior to a discontinuity of the electromagnetic radiation, wherein the discontinuity is a change or interruption in a beam or in an intensity of the electromagnetic radiation.
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10.发明申请公开(公告)号：US20190280036A1
公开(公告)日：2019-09-12
申请号：US16316051
申请日：2017-07-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Christoph HERRMANN , Roger STEADMAN BOOKER , Amir LIVNE
IPC: H01L27/146 , A61B6/03 , G01T1/24
Abstract: The present invention relates to a detector module comprising a direct conversion crystal (10) for converting incident photons into electrical signals, said direct conversion crystal having a cathode metallization (100) deposited on a first surface and an anode metallization (101) deposited on a second surface, an integrated circuit (12) in electrical communication with said direct conversion crystal, said integrated circuit having a smaller width than said direct conversion crystal thus forming a recess (120) in width direction at a side surface of the integrated circuit, an interposer (11, 11a) arranged between said direct conversion crystal and said integrated circuit for providing electrical communication there between, wherein said interposer is made as separate element that is glued, soldered or bonded with the anode metallization (101) of said direct conversion crystal facing said integrated circuit, and a multi-lead flex cable (13, 13a, 13b, 13c, 13d) providing a plurality of output paths, said multi-lead flex cable having a first portion (131, 131a, 131b, 131c, 13 Id) connected with one surface to said direct conversion crystal and with the opposite surface to said integrated circuit (12) and a second portion (132), which is bent with respect to the first portion and is arranged in said recess.
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