公开(公告)号：US20190287753A1

公开(公告)日：2019-09-19

申请号：US16348061

申请日：2017-11-08

申请人： Cetteen GmbH

发明人： Immo Weber

IPC分类号： H01J9/02 ,  H01J1/304 ,  C01B32/168 ,  C01B32/16 ,  C09D5/20 ,  C09J9/02 ,  C09D1/00

摘要： A method is disclosed for producing an electron emitter (1) with a component surface (3) of which is coated with a coating (2) that contains nanorods (4, 7), in particular carbon nanotubes. According to said method, an elastomer film is applied and is then peeled off to obtain a surface from which carbon nanotubes (7) with an upright orientation project upward from an inorganic and electrically conductive adhesive layer (5). In another example, an overall coating region of the electron emitter (1) has an average number (n) of carbon nanotubes (7) with a predominantly upright orientation that project upward from the electrically conductive adhesive layer (5), the number of nanotubes (7) with a predominantly upright orientation per mm2 protruding from the adhesive layer deviating from the average value (n) by not more than 25% for each partial coating region of a size of at least 108 mm2.

公开(公告)号：US11558950B2

公开(公告)日：2023-01-17

申请号：US16643526

申请日：2018-08-31

申请人： Cetteen GmbH

发明人： Stefan Fritz ,  Houman Jafari ,  Jörg Rehrmann

IPC分类号： H05G1/04 ,  H05G1/34 ,  H05G1/22 ,  H05G1/70 ,  H05G1/20

摘要： The invention relates to a control device for an X-ray tube (2), comprising a housing (29) that is designed as a shield, in which an anode current regulating unit (1) is arranged and which is connected to a cathode power supply unit (18), a plurality of cathode voltage switches (20, 21, 22, 23, 24) which are to be connected to in each case a cathode (4), and a programmable assembly (25), in which the control of the cathodes (4) is determined. The cathode power supply unit (18), the cathode voltage switches (20, 21, 22, 23, 24) and the programmable assembly (18) are also arranged in the housing (29).

公开(公告)号：US11183357B2

公开(公告)日：2021-11-23

申请号：US16649527

申请日：2018-09-20

申请人： Cetteen GmbH

发明人： Houman Jafari ,  Bo Gao ,  Johannes Ringel

IPC分类号： H01J35/12 ,  H01J35/06 ,  H01J35/14 ,  H01J35/10

摘要： A MBFEX tube (1) for an x-ray device comprises, in a vacuum tube (20), an anode (30) designed as a cooling finger and securely arranged in the vacuum tube, and a plurality of securely arranged cathodes (40, 41, 42), wherein the vacuum tube (20) comprises a plurality of cathode feed lines (50) and no more than two high-voltage bushings (51, 52), in a high-voltage bushing (52) a coolant pipe (31) is passed through by an internal coolant inner pipe (32), the coolant pipe (31) and the coolant inner pipe (32) are provided for cooling the anode (30) with a liquid coolant, the cathodes (40, 41, 42) are provided for field emission of electrons and are arranged on the anode (30) for generating x-ray sources (Q).

公开(公告)号：US20200312601A1

公开(公告)日：2020-10-01

申请号：US16649527

申请日：2018-09-20

申请人： Cetteen GmbH

发明人： Houman Jafari ,  Bo Gao ,  Johannes Ringel

IPC分类号： H01J35/06 ,  H01J35/10 ,  H01J35/14

摘要： A MBFEX tube (1) for an x-ray device comprises, in a vacuum tube (20), an anode (30) designed as a cooling finger and securely arranged in the vacuum tube, and a plurality of securely arranged cathodes (40, 41, 42), wherein the vacuum tube (20) comprises a plurality of cathode feed lines (50) and no more than two high-voltage bushings (51, 52), in a high-voltage bushing (52) a coolant pipe (31) is passed through by an internal coolant inner pipe (32), the coolant pipe (31) and the coolant inner pipe (32) are provided for cooling the anode (30) with a liquid coolant, the cathodes (40, 41, 42) are provided for field emission of electrons and are arranged on the anode (30) for generating x-ray sources (Q).