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公开(公告)号:US11123027B2
公开(公告)日:2021-09-21
申请号:US16089672
申请日:2017-03-31
发明人: Paul R. Schwoebel , John M. Boone
IPC分类号: A61B6/00 , H01J35/14 , A61B6/06 , G01N23/046 , G01N23/083 , G01N23/10 , H01J35/04 , H01J35/10 , A61B6/02
摘要: Embodiments provide a stationary X-ray source for a multisource X-ray imaging system for tomographic imaging. The stationary X-ray source includes an array of thermionic cathodes and, in most embodiments a rotating anode. The anode rotates about a rotation axis, however the anode is stationary in the horizontal or vertical dimensions (e.g. about axes perpendicular to the rotation axis). The elimination of mechanical motion improves the image quality by elimination of mechanical vibration and source motion; simplifies system design that reduces system size and cost; increases angular coverage with no increase in scan time; and results in short scan times to, in medical some medical imaging applications, reduce patient-motion-induced blurring.
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公开(公告)号:US11534118B2
公开(公告)日:2022-12-27
申请号:US17338299
申请日:2021-06-03
发明人: Paul R. Schwoebel , John M. Boone
IPC分类号: A61B6/00 , H01J35/14 , A61B6/06 , G01N23/046 , G01N23/083 , G01N23/10 , H01J35/04 , H01J35/10 , A61B6/02
摘要: Embodiments provide a stationary X-ray source for a multisource X-ray imaging system for tomographic imaging. The stationary X-ray source includes an array of thermionic cathodes and, in most embodiments a rotating anode. The anode rotates about a rotation axis, however the anode is stationary in the horizontal or vertical dimensions (e.g. about axes perpendicular to the rotation axis). The elimination of mechanical motion improves the image quality by elimination of mechanical vibration and source motion; simplifies system design that reduces system size and cost; increases angular coverage with no increase in scan time; and results in short scan times to, in medical some medical imaging applications, reduce patient-motion-induced blurring.
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公开(公告)号:US20200305809A1
公开(公告)日:2020-10-01
申请号:US16089672
申请日:2017-03-31
发明人: Paul R. Schwoebel , John M. Boone
IPC分类号: A61B6/00 , H01J35/10 , H01J35/04 , H01J35/14 , A61B6/06 , G01N23/046 , G01N23/083 , G01N23/10
摘要: Embodiments provide a stationary X-ray source for a multisource X-ray imaging system for tomographic imaging. The stationary X-ray source includes an array of thermionic cathodes and, in most embodiments a rotating anode. The anode rotates about a rotation axis, however the anode is stationary in the horizontal or vertical dimensions (e.g. about axes perpendicular to the rotation axis). The elimination of mechanical motion improves the image quality by elimination of mechanical vibration and source motion; simplifies system design that reduces system size and cost; increases angular coverage with no increase in scan time; and results in short scan times to, in medical some medical imaging applications, reduce patient-motion-induced blurring.
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公开(公告)号:US09508522B2
公开(公告)日:2016-11-29
申请号:US14207216
申请日:2014-03-12
发明人: Shang-hyeun Park , Paul R. Schwoebel , Il-hwan Kim , Do-yoon Kim , Yong-chul Kim , Chang-soo Lee , Tae-won Jeong
IPC分类号: H01J35/06 , H01J35/04 , H01J19/44 , H01J3/02 , H01J3/38 , H01J1/30 , H01J1/90 , A61B6/00 , H01J1/304 , H01J19/24 , H01J19/42 , B82Y30/00
CPC分类号: H01J35/065 , A61B6/40 , A61B6/4064 , A61B6/4488 , B82Y30/00 , H01J1/304 , H01J1/90 , H01J3/021 , H01J3/38 , H01J19/24 , H01J19/42 , H01J19/44 , H01J35/045 , H01J35/06 , H01J2201/304 , H01J2201/30469 , H01J2201/3195 , H01J2203/0204 , H01J2203/0208 , H01J2203/0212 , H01J2203/0216 , H01J2203/0236 , H01J2235/06 , H01J2235/1212 , H01J2235/1291 , H01J2235/1295 , Y10S977/742 , Y10S977/939 , Y10S977/95
摘要: An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing.
摘要翻译: X射线发生器包括壳体,阴极块,其布置在壳体中并经由场致发射方案发射电子;阳极块,布置在壳体中并响应于从阴极发射的电子产生X射线 阻挡并与阳极块碰撞,以及散热块,其接触阴极块并将其中产生的热量散发到壳体的外部。
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