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JP2023541837A |
The present disclosure provides a magnetic immersion electron gun and a method of generating an electron beam using a magnetic immersion electron gun. The electron gun includes a magnetic lens that forms a magnetic field, a cathode tip d...
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JP7353473B2 |
An electron gun 901 capable of suppressing an uneven temperature distribution at an extraction electrode and a length-measuring SEM 900 are provided. The electron gun 901 is equipped with: a charged particle source 1; an extraction elect...
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JP7347796B2 |
To provide an electron gun having a nanowire emitter for adjusting the irradiation position of an electron beam without breaking vacuum, and electronic equipment using the same.An electron gun includes: a nanowire emitter for emitting an...
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JP2023124004A |
To provide a heat shield that can measure temperature to evaluate the temperature distribution of a cathode during heating.A heat shield 10 includes a cylindrical portion 11 that surrounds the outer periphery of a cathode 20 that extends...
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JP2023119901A |
To provide an electron gun that can prevent a filament from moving with respect to a focusing electrode, an X-ray tube, and a manufacturing method for the electron gun.The electron gun includes a filament that emits electrons, a filament...
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JP7335152B2 |
An electron emission element of the present invention includes a lower electrode, a surface electrode, and a silicone resin layer disposed between the lower electrode and the surface electrode, wherein the surface electrode includes a si...
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JP7319492B2 |
The present invention provides an emitter, which comprises carbon nanotubes and is excellent in the efficiency of electron emission, and an X-ray tube comprising the same.
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JP7319865B2 |
To provide a cathode in which particles are hardly generated from a cathode repeller and which is long in life and can be used stably.A cathode is used for an ion source that extracts an ion beam using gas. A cathode constituting the ion...
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JP7318417B2 |
To provide a formation method of a film capable of suppressing discharge during deposition; and to provide a film deposition apparatus.In a formation method of a film, powder 121 is supplied into a nozzle 102, and the powder 121 is jette...
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JP2023097114A |
To provide a cathode heater in which a cathode is stably supported.The present invention relates to a cathode heater heating a cathode emitting an electron to an electron emission direction. The cathode heater comprises: an electrically ...
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JP2023094050A |
To provide an electron gun that can reduce leakage current between an emitter and an extraction electrode.An electron gun 100 includes an emitter 10 that emits electrons, an extraction electrode 30 that extracts electrons from the emitte...
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JP7303342B2 |
The disclosed embodiments relate to a charged particle source module for generating and emitting a charged particle beam, such as an electron beam, comprising: a frame including a first frame part, a second frame part, and one or more ri...
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JP7296661B2 |
An on-chip miniature X-ray source, comprising: an on-chip miniature electron source (10); a first insulating spacer (11) located on one side of the on-chip miniature electron source (10) emitting electrons, the first insulating spacer (1...
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JP2023526524A |
The electron emitter structure comprises: a) an air-stable electron-emissive layer made of a mixture of metals, having a first side and a second side, and b) released from the electron-emissive layer in an adjustable electric field. and ...
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JP7295974B2 |
In a Schottky emitter or a thermal field emitter using a hexaboride single crystal, side emission from portions other than an electron emission portion is reduced. An electron source according to the invention includes: a protrusion (40)...
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JP7294438B2 |
This electron gun is provided with: an emitter having an electron emittance surface; a first electrode as an extraction electrode; and a second electrode having a second surface facing a first surface of the first electrode, wherein the ...
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JP2023084299A |
To suppress discharge between an emitter and a gate electrode, and suppress influence on other field emission elements even when discharge occurs in a certain field emission element.A field emission element 10 includes: an emitter 12 for...
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JP7291235B2 |
An electron beam emitted from a photoexcited electron gun is increased in luminance. An electron gun 15 includes: a photocathode 1 including a substrate 11 and a photoelectric film 10; a light source 7 that emits pulsed excitation light;...
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JP7279936B2 |
To provide a field emission element that is less likely to be destroyed even when a large current is emitted while maintaining a sharp conical emitter shape.A field emission element has a structure including at least a conical emitter pr...
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JP7272641B2 |
Provided are an electron emission device having a narrow electron energy range and excellent electron emitting efficiency, and an electron microscope using the electron emission device. Provided are an electron emission device having a l...
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JP7269107B2 |
An electron gun comprising a cathode having an electron emitting surface and whose planar shape is circular; a heater; an anode being arranged to oppose the cathode; and a heat resistant member. The anode applies a positive potential rel...
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JP7257550B2 |
A power supply circuit and a field emission electron source are provided. The power supply circuit includes: field effect transistors Si coupled in series via drains and sources in sequence, wherein 1≤i≤n, n≥2, and wherein a source...
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JP2023512566A |
[Theme] Kind Code: A1 In an electron tube (1), an electron emitting member (20) is arranged in a housing (10) and has a metasurface (S) and first and second electrodes (81, 82). The metasurface S emits electrons in response to incident e...
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JP7241746B2 |
A flat top laser beam is used to generate an electron beam with a photocathode that can include an alkali halide. The flat top profile can be generated using an optical array. The laser beam can be split into multiple laser beams or beam...
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JP7238249B2 |
An electron source in a gas-source mass spectrometer the electron source comprising: an electron emitter cathode presenting a thermionic electron emitter surface in communication with a gas-source chamber of the gas-source mass spectrome...
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JP2023036830A |
To provide a manufacturing method for an electron source having a structure in which a chip of electron emitting material is bonded directly to a tungsten filament.The manufacturing method of an electron source includes the steps of sand...
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JP7236515B2 |
An electron source is formed on a silicon substrate having opposing first and second surfaces. At least one field emitter is prepared on the second surface of the silicon substrate to enhance the emission of electrons. To prevent oxidati...
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JP7236462B2 |
A charged particle source is provided that exhibits small energy dispersion for charged particle beams emitted under a high angular current density condition and allows stable acquisition of large charged particle currents even for a sma...
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JP7234099B2 |
According to one embodiment, an electron-emitting element includes a first member and a second member. The first member includes a semiconductor member of an n-type. The second member includes a diamond member a p-type and includes at le...
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JP7227230B2 |
A novel photocathode employing a conduction band barrier is described. Incorporation of a barrier optimizes a trade-off between photoelectron transport efficiency and photoelectron escape probability. The barrier energy is designed to ac...
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JP7206337B2 |
The present invention relates to the field of functionalization of metal material, and in particular to a carbon nanomaterial functionalized needle tip modified with a low work function material and a preparation method thereof. The carb...
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JP7206437B2 |
In one embodiment, a system includes a cathode and a thermionic emitter installed at least partially within the cathode tube of the cathode. The thermionic emitter is in a shape of a hollow cylinder. The hollow cylinder includes an outer...
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JP2022189581A |
To provide a horizontal type field emission electron gun that has a simple structure, can be downsized, and can make electrons travel in a direction in parallel with a substrate.A horizontal type field emission electron gun 1 comprises: ...
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JP2022187782A |
To obtain an electron gun that shortens a time for manufacturing a three-dimensional model from a metal powder material.An electron gun includes a photocathode 18, a laser oscillator 11 and a collimation lens 12, which are a laser optica...
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JP7190930B2 |
To provide a functional membrane and an electron emitter in which assemblies are uniformly arranged on a substrate.A functional film is composed of entangled carbon nanotubes, and includes an aggregate 14 having a diameter of 50 μm or l...
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JP2022552407A |
A cathode for an electron emission device is disclosed, the cathode comprising carbon nanotubes (CNTs), a nano-filled material, and a carbonizable polymer, the cathode exhibiting increased hardness, formed by high temperature heat treatm...
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JP2022551419A |
A photocathode emitter 100 includes a transparent substrate 101 , a photocathode layer 103 , and an array of plasmonic structures 102 disposed between the transparent substrate 101 and the photocathode layer 103 . Plasmonic structure arr...
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JP7185281B2 |
[Object] To provide an electron source that is lightweight, simple in configuration, and capable of suppressing characteristic degradation or recovering characteristics without causing an increase in power consumption.[Solving Means] A C...
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JP7179831B2 |
Embodiments include a vacuum device, comprising: an enclosure configured to enclose a vacuum, comprising an external base forming at least a portion of the enclosure; an internal base within the enclosure; and at least one thermal dissip...
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JP7174195B2 |
In one embodiment, a system includes a thermionic emitter and a heater at least partially surrounding the thermionic emitter. The heater is configured to heat the thermionic emitter. The heater includes a first end, a second end opposite...
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JP7168269B2 |
The present invention provides an emitter made of a hafnium carbide (HfC) single crystal that stably emits electrons with high efficiency, a method for manufacturing the emitter, and an electron gun and an electronic device using the emi...
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JP7157675B2 |
A method and a light detector that includes (i) a photon to electron converter a photon to one or more photoelectrons; (ii) a photoelectron detection circuit that includes a photoelectron sensing region; (iii) a chamber; (iv) a bias circ...
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JP7152813B2 |
Provided are an on-chip micro electron source and manufacturing method thereof. The on-chip micro electron source is provided with a heat conductive layer (10), and at least one electrode (122) in the same pair of electrodes is connected...
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JP7145533B2 |
The purpose of the present invention is to provide an emitter capable of easily and highly efficiently emitting electrons, an electron gun using same, and an electronic device.This emitter is provided with a cathode holder, and an acicul...
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JP7145200B2 |
A device 10 for controlling electron flow is provided. The device comprises a cathode 12, an elongate electrical conductor 14 embedded in a diamond substrate 16, an anode 18, and a control electrode 22 provided on the substrate surface 2...
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JP2022539537A |
[Task] [Solution] The present invention relates to a photocathode for vacuum systems configured to receive electromagnetic radiation having an incident wavelength and emit electrons in response thereto. A photocathode comprises a conduct...
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JP2022130056A |
PURPOSE: To provide a cathode mechanism capable of stabilizing the resistance of a cathode, suppressing dielectric breakdown, and efficiently heating a crystal.CONSTITUTION: A cathode mechanism of an electron gun according to an embodime...
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JP2022129983A |
To provide a photocathode with a protective film having high brightness and a long life even in a relatively easily obtained high vacuum environment (for example, 10-5 Pa or higher), a manufacturing method of the same.A photocathode with...
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JP7132254B2 |
A charged particle beam device includes a lens barrel having a charged particle source, a sample chamber in which a sample to be irradiated with a charged particle beam is provided, and a heat emission type electron source disposed in th...
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JP2022538534A |
[Task] An electron tube includes a housing whose interior is held in a vacuum and has a window that transmits electromagnetic waves, and a metasurface that is arranged in the housing and emits electrons in response to incident electromag...
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