-
1.发明申请公开(公告)号：US20190239832A1
公开(公告)日：2019-08-08
申请号：US16384208
申请日：2019-04-15
Applicant: Analogic Corporation
Inventor： Matthew B. Christensen , Aleksander Roshi , Anton Deykoon
CPC classification number: A61B6/4035 , A61B6/032 , A61B6/06 , A61B6/4078 , G21K1/10
Abstract: Among other things, one or more systems and/or techniques are described for shaping a profile of radiation attenuation in a fan-angle direction via a pre-object filter (e.g., a bowtie filter) based upon a profile of an object. For example, a pre-object filter may be at least partially rotated about a filter axis and/or may be translated in a direction parallel to a direction of conveyance of the object under examination to adjust a profile of radiation attenuation in the fan-angle direction. Further, in one embodiment, the profile of radiation attenuation may be reshaped during rotation of the radiation source about the object to adjust an amount of radiation attenuation in the fan-angle direction (e.g., to adjust a profile of radiation attenuation as a shape of the object changes from a perspective of a radiation source as the radiation source is rotated about the object).
-
Patent Agency Ranking
公开(公告)号：US10398405B2
公开(公告)日：2019-09-03
申请号：US16235409
申请日：2018-12-28
Applicant: Analogic Corporation
Inventor： David Rozas , Aleksander Roshi , Charles H. Shaughnessy
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
-
公开(公告)号：US20190192106A1
公开(公告)日：2019-06-27
申请号：US16235409
申请日：2018-12-28
Applicant: Analogic Corporation
Inventor： David Rozas , Aleksander Roshi , Charles H. Shaughnessy
CPC classification number: A61B6/585 , A61B6/032 , A61B6/5252 , G06T11/005 , H01J35/106 , H01J2235/1204 , H01J2235/1266
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
-
公开(公告)号：US10206650B2
公开(公告)日：2019-02-19
申请号：US14771858
申请日：2013-03-01
Applicant: ANALOGIC CORPORATION
Inventor： David Rozas , Aleksander Roshi , Charles Shaughnessy
Abstract: Among other things, one or more techniques and/or systems for calibration of a radiation system to compute a gain correction(s) are provided. A calibration procedure is performed during which a portion of the detector array is shadowed by an object, causing the detector array to be non-uniformly exposed to radiation. A portion of a projection generated from the calibration procedure and indicative of radiation that did not traverse the object is separated from a portion of the projection indicative of radiation that did traverse the object, and a gain correction(s) is computed from the portion of the projection indicative of radiation that did not traverse the object (e.g., and is thus indicative of radiation that merely traversed air).
-
公开(公告)号：US11083422B2
公开(公告)日：2021-08-10
申请号：US16384208
申请日：2019-04-15
Applicant: Analogic Corporation
Inventor： Matthew B. Christensen , Aleksander Roshi , Anton Deykoon
Abstract: Among other things, one or more systems and/or techniques are described for shaping a profile of radiation attenuation in a fan-angle direction via a pre-object filter (e.g., a bowtie filter) based upon a profile of an object. For example, a pre-object filter may be at least partially rotated about a filter axis and/or may be translated in a direction parallel to a direction of conveyance of the object under examination to adjust a profile of radiation attenuation in the fan-angle direction. Further, in one embodiment, the profile of radiation attenuation may be reshaped during rotation of the radiation source about the object to adjust an amount of radiation attenuation in the fan-angle direction (e.g., to adjust a profile of radiation attenuation as a shape of the object changes from a perspective of a radiation source as the radiation source is rotated about the object).
-
公开(公告)号：US10258299B2
公开(公告)日：2019-04-16
申请号：US14439736
申请日：2012-10-31
Applicant: ANALOGIC CORPORATION
Inventor： Matthew B. Christensen , Aleksander Roshi , Anton M. Deykoon
Abstract: Among other things, one or more systems and/or techniques are described for shaping a profile of radiation attenuation in a fan-angle direction via a pre-object filter (e.g., a bowtie filter) based upon a profile of an object. For example, a pre-object filter may be at least partially rotated about a filter axis and/or may be translated in a direction parallel to a direction of conveyance of the object under examination to adjust a profile of radiation attenuation in the fan-angle direction. Further, in one embodiment, the profile of radiation attenuation may be reshaped during rotation of the radiation source about the object to adjust an amount of radiation attenuation in the fan-angle direction (e.g., to adjust a profile of radiation attenuation as a shape of the object changes from a perspective of a radiation source as the radiation source is rotated about the object).
-
-
-
-
-
Search Results
6
records
(took 0.011 seconds)
