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1.发明公开X-RAY TUBE HAVING A DUAL GRID FOR STEERING AND FOCUSING THE ELECTRON BEAM AND DUAL FILAMENT CATHODE 审中-公开X射线管具有用于转向和聚焦电子束和双丝电极的双栅格
公开(公告)号：EP3251142A1
公开(公告)日：2017-12-06
申请号：EP16704120.1
申请日：2016-01-28
发明人： CANFIELD, Bradley D.
摘要： A cathode head can include: a first electron emitter filament having a first size; a first grid pair defining walls of a first filament slot having the first filament therein, each grid member of the first grid pair being electronically coupled to different voltage sources; a second electron emitter filament; and a second grid pair defining walls of a second filament slot having the first electron emitter therein, each grid member of the second grid pair being electronically coupled to different voltage sources. The first grid pair can have a first and second grid members; and the second grid pair can have the second grid member and a third grid member. The first grid member and third grid member are electronically coupled to the same voltage source and the second grid member being electronically coupled to a different voltage source.
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2.发明授权
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3.发明公开X-RAY TUBE HAVING MAGNETIC QUADRUPOLES FOR FOCUSING AND MAGNETIC DIPOLES FOR STEERING 审中-公开用于聚焦的磁性四极管的X射线管和用于转向的磁性偶极子
公开(公告)号：EP3268976A1
公开(公告)日：2018-01-17
申请号：EP16710904.0
申请日：2016-03-07
CPC分类号： H01J35/14 , H01J35/06 , H01J35/26 , H01J35/305
摘要： An X-ray tube can include: a cathode including an electron emitter; an anode configured to receive the emitted electrons; a first magnetic quadrupole between the cathode and the anode and having a first quadrupole yoke with four first quadrupole pole projections extending from the first quadrupole yoke and oriented toward a central axis of the first quadrupole yoke and each of the four first quadrupole pole projections having a first quadrupole electromagnetic coil; a second magnetic quadrupole between the first magnetic quadruple and the anode and having a second quadrupole yoke with four second quadrupole pole projections extending from the second quadrupole yoke and oriented toward a central axis of the second quadrupole yoke and each of the four second quadrupole pole projections having a second quadrupole electromagnetic coil; and a magnetic dipole between the cathode and anode and having a dipole yoke with four dipole electromagnetic coils.
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