X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2007-03-06
2007-03-06
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S004000, C378S144000
Reexamination Certificate
active
10924111
ABSTRACT:
An X-ray CT apparatus capable of imaging a subject based on X-rays of multiple energy levels while using an ordinary X-ray detector includes an X-ray tube which generates X-rays from multiple focal points of different 3-dimensional positions sequentially on a time-division basis, a plurality of filters which implement the filtering individually for the X-rays generated individually from the focal points, a collimator which equalizes the irradiation range of the X-rays generated individually from the focal points, collection means which collects projection data of multiple views of a subject of imaging for the X-rays generated individually from the focal points, and reconstruction means which reconstructs an image based on the projection data. The anode of the X-ray tube has multiple impingement portions where electrons released by the cathode impinge at multiple positions on the trajectory of electrons sequentially on a time-division basis.
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Gohno Makoto
Hagiwara Akira
Armstrong Teasdale LLP
GE Medical Systems Global Technology Company LLC
Glick Edward J.
Horton Esq. Carl B.
Kao Chih-Cheng Glen
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