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Matches 1 - 50 out of 8,106

Document Document Title
WO/2021/082363A1
Provided are a power supply circuit and a field emission electron source. The power supply circuit comprises: field effect transistors Si sequentially connected in series by means of drains and sources, wherein 1 ≤ i ≤ n, each of i a...  
WO/2021/082362A1
A power supply circuit and a field emission electron source. The power supply circuit comprises: field effect transistors Si sequentially connected in series from a drain electrode to a source electrode, wherein 1≤i≤n, i and n are na...  
WO/2021/082356A1
A time division multiplexing control device applied to a distributed X-ray source, comprising: a first switch module (101), comprising a plurality of first switches and used for receiving a high voltage signal and a first control signal,...  
WO/2021/079307A1
The present invention is intended to provide improved patterned X-ray emitting targets as well as X-ray sources that include patterned X-ray emitting targets as well as X-ray reflectance scatterometry (XRS) systems and also including X-r...  
WO/2021/076834A1
A cathode of an electron emitting device is described, where the cathode comprises a carbon nanotube (CNT); a nano-filler material; and a carbonizable polymer; and where the cathode exhibits increased hardness, is formed by high temperat...  
WO/2021/063784A1
An anode (100) for a rotating anode X-ray tube is proposed, wherein the anode comprises an inner and/or an outer electron capturing element (120, 110). The inner and/or outer electron capturing elements are configured to capture electron...  
WO/2021/064754A2
A system and method for dynamically optimizing content delivery in a wireless communication network. The method comprises receiving, at a transceiver [208A], a request for delivery of a content from at least one user device [202]. A mani...  
WO/2021/059595A1
This radiation tube mounting member is provided with: a common substrate which supports one-end side of each of a plurality of radiation tubes and which holds the respective radiation tubes in an arrayed state; and a positioning part whi...  
WO/2021/053876A1
The purpose of the invention is to prevent excess brazing material from joining to a guard electrode during vacuum brazing in a field emission device. An emitter support section (32) of an emitter support structure (1) is disposed so a...  
WO/2021/053203A1
The invention relates to a computer tomograph, in particular for examining the human body, which operates by means of a plurality of rigidly arranged x-ray tubes (3), which are components of emitter-detector elements (11, 12, 13, 14), wh...  
WO/2021/049639A1
An X-ray tube pertaining to an embodiment is provided with: an anode having a target layer and an outer peripheral part; and a cathode having a filament having a major axis in a first direction and an electron-focusing cup for focusing a...  
WO/2021/048856A1
An energy converter unit and X-ray source system are presented. The energy converter unit comprises a multilayered crystal structure having a selected layers' arrangement comprising at least first and second of layers of at least first a...  
WO/2021/049055A1
An X-ray tube device according to an embodiment comprises: a negative electrode that discharges electrons; a positive electrode target that generates an X-ray by being impacted with electrons discharged from the negative electrode; a fir...  
WO/2021/044525A1
This X-ray generator is provided with an X-ray generation unit, a housing case housing the X-ray generation unit, and an insulating component disposed between the inner surface of the housing case and at least a part of the X-ray generat...  
WO/2021/044524A1
This X-ray generation device is provided with: an X-ray generation tube having a cathode that includes an electron-emitting section for emitting electrons in a first direction, and an anode including a target that generates X-rays as a r...  
WO/2021/040079A1
The present invention relates to an x-ray source device and a control method thereof, the X-ray source device comprising: an emitter which is formed on the upper surface of a cathode electrode for electron emission; an anode electrode wh...  
WO/2021/037481A1
The invention relates to an electron source (2) for generating an electron beam (8), comprising a cathode (1) and an anode (4) in the form of a graphene layer (6, 12) which is epitaxially grown with a silicon carbide substrate (5). The i...  
WO/2021/035004A1
Some embodiments include an x-ray system, comprising: a structure (102) having a hole (110) having an axially extending wall (114); and a nozzle (104) disposed in the hole (110); wherein the nozzle (104) and the axially extending wall (1...  
WO/2021/029161A1
According to the present invention, a window part transmits an X-ray emitted from a target to the outside through an X-ray passage. The window part includes: a window frame section having a passing hole through which the X-ray passes; a ...  
WO/2021/030192A1
Described are apparatus and methods of operation for three dimensional fluence modulation and scatter shielding for dedicated computed tomography (CT). Through the disclosed invention, the number of incident photons on the field of view ...  
WO/2021/024510A1
An X-ray tube for analysis according to an embodiment of the present invention is provided with: a vacuum envelope having formed therein an output window through which X-rays are transmitted; a disk-shaped anode target provided opposite ...  
WO/2021/020722A1
Provided is a field emission apparatus including a pipe-shaped emitter holder comprising an electrically conductive material and a first internal space communicated in a first direction, and an emitter electrode having one or more yarns ...  
WO/2021/013853A1
An X-ray source (100) for generating X-ray radiation of first and second energy spectra is proposed, wherein the X-ray intensity imbalance between the first and second energy spectra is reduced as compared to conventional X-ray sources. ...  
WO/2021/015036A1
The X-ray tube is provided with an electron gun unit, a target from which X-rays are generated, and a vacuum housing section. The vacuum housing section has: a metal housing part supporting the target; and a bulb part made of an insulati...  
WO/2021/015037A1
This X-ray tube is provided with: an electron gun part which emits electrons; a target which generates X rays; and a vacuum casing part which houses the electron gun part and the target. The vacuum casing part includes a valve part made ...  
WO/2021/008881A1
A method for imaging a sample (S) by means of an X-ray detector (D) is disclosed, comprising providing (10) an electron beam (112) interacting with a target (T) to generate X-ray radiation (120) emitted from an X-ray spot (122) on the ta...  
WO/2021/011209A1
An x-ray source includes an anode assembly having at least one surface configured to rotate about an axis, the at least one surface in a first region. The x‑ray source further includes an electron-beam source configured to emit at leas...  
WO/2021/006166A1
[Problem] To facilitate movement or installation of a CT device and reduce maintenance load such as repair and replacement of used parts by reducing the size, weight, and power consumption of an X-ray CT and solving the stroke region of ...  
WO/2020/261339A1
The X-ray generation device is provided with: an electron gun; and an anode having a target from which X-rays are generated when electrons from the electron gun collide therewith. The electron gun includes a cathode having an electron em...  
WO/2020/232253A9
Disclosed are systems and methods for X-ray imaging of a patient's breast using optimized iodine contrast- enhanced energy-subtraction mammography (CEESM). The disclosed technology employs an X-ray tube design that uses as the X-ray targ...  
WO/2020/242511A1
Embodiments of the disclosed system and method provide for generating a multiple- energy X-ray pulse. A beam of electrons is generated with an electron gun and modulated prior to injection into an accelerating structure to achieve at lea...  
WO/2020/232253A1
Disclosed are systems and methods for X-ray imaging of a patient's breast using optimized iodine contrast- enhanced energy-subtraction mammography (CEESM). The disclosed technology employs an X-ray tube design that uses as the X-ray targ...  
WO/2020/229254A1
An imaging system (202) includes an X-ray radiation source (210) configured to emit radiation that traverses an examination region. The imaging system further includes a controller (220). The controller is configured to control an X-ray ...  
WO/2020/218952A1
An X-ray beam is generated in an interaction zone of an electron beam and a target, the zone being an annular layer of a molten fusible metal in an annular channel of a rotating anode assembly. The channel has a surface profile which pre...  
WO/2020/213039A1
An X-ray generation device comprising: an X-ray generation tube having a cathode that includes an electron emitting part which emits electrons in a first direction, and an anode that includes a target which generates X-rays due to the el...  
WO/2020/204290A1
The present invention provides an X-Ray emitting device that comprises a focusing electrode composed of a ceramic-based material, which can be manufactured by a simple process and is excellent in durability.  
WO/2020/193850A1
According to an example aspect of the present invention, there is provided a radiation window manufacturing method, comprising patterning a mask on a top surface of a bulk wafer (201, 212, 202), etching the bulk or compound wafer from th...  
WO/2020/193103A1
There is provided a method of setting a filament demand in an x- ray apparatus. The x-ray apparatus has a filament (111), through which the passing of a heating current allows thermionic emission of electrons from the filament. The x-ray...  
WO/2020/183550A1
The present invention addresses the problem of suppressing reduction in reliability of an EUV light generation device as a result of tin being stuck to the inside of an exhaust pump (60) or tin flowing reverse from a drain tank and adher...  
WO/2020/178898A1
An X-ray tube (120) is provided with: a cathode (140) and an anode (150) sealed inside a vacuum envelope (121); and an ion-collecting conductor (130) attached to the vacuum envelope so as to contact the internal space of the vacuum envel...  
WO/2020/158644A1
[Problem] To provide a compact tomosynthesis device that uses a plurality of cold cathode X-ray sources. [Solution] This tomosynthesis device includes a plurality of cold cathode X-ray sources that irradiate a subject with X-rays, wherei...  
WO/2020/153579A1
The present invention provides a field emission device with excellent structural stability and enhanced efficiency of electron emission. The device includes: a first tube composed of a carbon nanotube sheet that includes a plurality of u...  
WO/2020/141435A1
Systems and methods for digitally switching x-ray emission systems include a digital switching unit operable to selectively connect a low voltage driving circuit to activate a field emission type electron emitting construct such that ele...  
WO/2020/136912A1
This electron gun is provided with a cathode having an electron emission portion, an extraction electrode which extracts electrons emitted from the electron emission portion, and a convergence electrode which converges the electrons extr...  
WO/2020/136911A1
This X-ray generation tube comprises: an insulation tube having a first open end and a second open end; a cathode having an electron emission source and disposed so as to close the first open end of the insulation tube; an anode having a...  
WO/2020/127201A1
An X-ray source (100) is disclosed, comprising a liquid target source (110) configured to provide a liquid target (J) in an interaction region (I) of the X-ray source, an electron source (120) adapted to provide an electron beam (122) di...  
WO/2020/122257A1
Provided are an X-ray tube and an X-ray detector that can bring a target as close as possible to a sample. The X-ray tube comprises: an electron generation unit; an electron acceleration unit that accelerates electrons generated by the e...  
WO/2020/111818A1
The present invention relates to a small X-ray device having a flattening filter. Provided is a small X-ray device comprising: an X-ray tube in which electrons emitted in accordance with a voltage applied to a filament are emitted toward...  
WO/2020/111820A1
The present invention relates to a small x-ray tube having an extractor, comprising: a filament for emitting electrons when a voltage is applied; a base comprising two filament through holes so as to be able to fix the filament and conne...  
WO/2020/111819A1
The present invention relates to a small X-ray tube comprising a heat emitting cap. The small X-ray tube comprises: a filament for discharging electrons when voltage is applied thereto; a target for receiving the electrons discharged fro...  

Matches 1 - 50 out of 8,106