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公开(公告)号：US20180247787A1
公开(公告)日：2018-08-30
申请号：US15904820
申请日：2018-02-26
Inventor： Jin-Woo JEONG , Yoon-Ho SONG , Jun Tae KANG , Jae-Woo KIM
CPC classification number: H01J35/14 , G21K1/02 , H01J35/045 , H01J35/06 , H01J35/16 , H01J2235/062 , H01J2235/16 , H05G1/52
Abstract: Provided is an X-ray source including a vacuum closed tube. The X-ray source includes a high voltage connection module, a tube module, and a magnetic lens system into which the tube module is inserted. The tube module includes a vacuum closed tube. The vacuum closed tube includes a cathode electrode provided at one end thereof, a nano-emitter on the cathode electrode, an anode electrode provided at the other end, and a first insulation spacer provided between the cathode electrode and the anode electrode. In addition, the vacuum closed tube includes a first conductive tube and a second conductive tube both provided between the cathode electrode and the anode electrode and separated from each other by the first insulation spacer, and a first collimator block covering an inner surface of the first insulation spacer and having a first opening.
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公开(公告)号：US20170213687A1
公开(公告)日：2017-07-27
申请号：US15414455
申请日：2017-01-24
Inventor： Jin-Woo JEONG , Yoon-Ho SONG
Abstract: The present disclosure relates to an X-ray tube, and more particularly, to an X-ray tube having a simple structure from which an element necessary for focusing an electron beam, such as a magnetic lens, and having generating an X-ray having a focal spot of a nanometer-scale. The present disclosure includes: a electron beam generation unit emitting an electron beam; a limiting electrode unit limiting the electron beam emitted from the electron beam generation unit; and a target unit including a target material emitting an X-ray when the limited electron beam collides with the target material, wherein the limiting electrode includes of an electron beam limiting electrode allowing a portion of the emitted electron beam to pass therethrough and to be delivered to the target unit.
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公开(公告)号：US20230223230A1
公开(公告)日：2023-07-13
申请号：US18086845
申请日：2022-12-22
Inventor： Jin-Woo JEONG
CPC classification number: H01J35/14 , H01J35/065
Abstract: A micro focus X-ray tube is provided. The micro focus X-ray tube has a bonding structure in which a ceramic and a metal without an exhaust pipe are stacked by using a nano electric field emitter of an excellent feature.
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公开(公告)号：US20220351929A1
公开(公告)日：2022-11-03
申请号：US17712639
申请日：2022-04-04
Inventor： Yoon-Ho SONG , Jun-Tae KANG , Jae-Woo KIM , Jin-Woo JEONG
Abstract: Provided is an X-ray tube which includes a first electrode, a second electrode spaced apart from the first electrode, a target disposed in a lower portion of the second electrode, an emitter on the first electrode, a third electrode which is positioned between the first electrode and the second electrode and includes an opening at a position perpendicularly corresponding to the emitter, and a spacer provided on the third electrode and surrounding the second electrode. The spacer includes a first section located adjacent to the third electrode and a second section disposed on the first section. The spacer includes a ceramic insulator and conductive dopants dispersed within the ceramic insulator. A concentration of the conductive dopants in the first section of the spacer is greater than a concentration of the conductive dopants in the second section. The third electrode is in contact with the first section of the spacer.
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公开(公告)号：US20220148840A1
公开(公告)日：2022-05-12
申请号：US17523080
申请日：2021-11-10
Inventor： Jin-Woo JEONG
Abstract: An X-ray tube according to an embodiment of the inventive concept includes a cathode structure; an anode structure spaced vertically from the cathode structure, a gate electrode structure disposed between the cathode structure and the anode structure, an emitter array disposed between the cathode structure and the gate electrode structure, a tube sheath configured to connect the cathode structure and the anode structure, and a fixing unit connected with the gate electrode structure. The cathode structure includes a first rotation shaft and a cathode connected with the first rotation shaft as one body. The gate electrode structure includes a second rotation shaft and a gate electrode connected with the second rotation shaft through a bearing, and the second rotation shaft is connected with the first rotation shaft by a coupling unit. The gate electrode includes a gate electrode substrate and a protruding part that protrudes from the gate electrode substrate toward an emitter. The protruding part of the gate electrode includes a gate hole that vertically overlaps the emitter. The fixing unit includes a ferromagnetic structure attached to one surface of the gate electrode substrate and disposed on an outer portion of the substrate and a permanent magnet disposed adjacent to the ferromagnetic structure with the tube sheath therebetween.
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Patent Agency Ranking
公开(公告)号：US20210166909A1
公开(公告)日：2021-06-03
申请号：US17108634
申请日：2020-12-01
Inventor： Yoon-Ho SONG , Jun-Tae KANG , Jin-Woo JEONG , Jae-Woo KIM
Abstract: Provided is an X-ray tube. The X-ray tube includes a cathode electrode, an anode electrode vertically spaced apart from the cathode electrode, an emitter on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode, the gate electrode including an opening at a position corresponding to the emitter, and a spacer provided between the gate electrode and the anode electrode. The spacer includes an insulator and conductive dopants doped in the insulator.
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公开(公告)号：US20190080876A1
公开(公告)日：2019-03-14
申请号：US16123374
申请日：2018-09-06
Inventor： Jin-Woo JEONG , Yoon-Ho SONG
CPC classification number: H01J35/14 , H01J35/065 , H01J35/08 , H01J35/147 , H05G1/02 , H05G1/265 , H05G1/32 , H05G1/52
Abstract: Provided is an X-ray imaging device and a driving method thereof, the X-ray imaging device including an electron beam generation unit including a plurality of nano-emitters and a cathode, a first focusing electrode configured to focus an electron beam emitted from the electron beam generation unit, a deflector configured to deflect the electron beam focused by the first focusing electrode, a limited electrode configured to limit traveling of the electron beam deflected by the deflector, and an anode configured to be irradiated with the electron beam to emit an X-ray, wherein the limited electrode includes a limited aperture which the electron beam pass.
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公开(公告)号：US20180158640A1
公开(公告)日：2018-06-07
申请号：US15835073
申请日：2017-12-07
Inventor： Young Chul CHOI , Yoon-Ho SONG , Hyo Jin JEON , Jun Tae KANG , Sora PARK , Jeong Woong LEE , Eunsol GO , Min-Sik SHIN , Jae-Woo KIM , Jin-Woo JEONG , Ji-Hwan YEON , Sunghee KIM
Abstract: Disclosed is a field emission apparatus. The apparatus comprises a cathode electrode and an anode electrode spaced apart from each other, an emitter on the cathode electrode, a gate electrode between the cathode and anode electrodes and including at least one gate aperture overlapping the emitter, and an electron transmissive sheet on the gate electrode and including a plurality of fine openings overlapping the gate aperture.
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公开(公告)号：US20230078172A1
公开(公告)日：2023-03-16
申请号：US17861841
申请日：2022-07-11
Inventor： Sunghoon CHOI , Yoon-Ho SONG , Jin-Woo JEONG , Sora PARK
Abstract: Provided is a backscattered X-ray image device based on multi-sources. The backscattered X-ray image device includes an X-ray tube array configured to generate X-rays, first slit plates provided on the X-ray tube array and having a first slit through which the X-rays pass, second slit plates provided on the first slit plates and having second slits defined in a direction different from that of the first slit, and detectors provided on the second slit plates and having a narrow gap in the same direction as the first slit, the detectors being configured to detect a backscattered beam that is emitted from a subject receiving the X-rays.
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公开(公告)号：US20220208501A1
公开(公告)日：2022-06-30
申请号：US17562801
申请日：2021-12-27
Inventor： Ki Nam YUN , Yoon-Ho SONG , Jun-Tae KANG , Jeong-Woong LEE , Jin-Woo JEONG
Abstract: Provided is a method for manufacturing an electric field emission device. The method for manufacturing the electric field emission device includes winding a carbon nanotube yarn around outer circumferential surfaces of a metal plate in a first direction, pressing both side surfaces of the metal plate through a pair of metal structures, wherein a top surface of the metal plate is exposed from the metal structures, and an area of the top surface of the metal plate is less than that of each of both the side surfaces of the metal plate, and cutting the carbon nanotube yarn at an edge portion of the top surface of the metal plate in the first direction to form a plurality of emitters.
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