H01J9/12

MICROCHANNEL PLATE AND METHOD OF MAKING THE MICROCHANNEL PLATE WITH AN ELECTRON BACKSCATTER LAYER TO AMPLIFY FIRST STRIKE ELECTRONS
20230307202 · 2023-09-28 ·

A night vision system along with an image intensifier tube having a microchannel plate and method of forming the microchannel plate are provided. The microchannel plate comprises a plurality of spaced channels extending through the microchannel plate, wherein each channel sidewall surface near the input face of the microchannel plate comprises a series of layers formed thereon. The input face of the microchannel plate, as well as the sidewall surfaces of each channel near the input surfaces, are configured with an electron backscatter layer arranged between a contact metal layer and a secondary electron booster layer. When formed partially into the channel openings near the input face, the electron backscatter layer and overlying secondary electron booster layer are configured circumferentially around the sidewall surfaces and extend radially inward toward a central axis of each channel.

Method of enhancing a DLC coated surface for enhanced multipaction resistance

A method for creating an enhanced multipaction resistant diamond-like coating (DLC) coating with lower Secondary Electron Emission (SEE) properties is performed on an initial surface by etching a DLC coating deposited on the surface after deposition and optionally creating interlayers to enhance adhesion mechanical properties between the DLC coating and the initial surface.

INTEGRATED NATIVE OXIDE DEVICE BASED ON ALUMINUM, ALUMINUM ALLOYS OR BERYLLIUM COPPER (INOD) AND DISCRETE DYNODE ELECTRON MULTIPLIER (DDEM)
20210358730 · 2021-11-18 ·

Techniques produce integrated native metal oxide discrete elements which can be used to fabricate discrete dynode electron multiplier (DDEM) devices, for example by creating dynodes with a native oxide as secondary electron emissive (SEE) layer from a metal block. The metal block may comprise or consist of a metal base component, for example Al, Al alloys or BeCu, of metal oxide SEE materials Al2O3 or BeO. Growing a native oxide from these base metals, Al2O3 or BeO eliminates the need of a costly and time-consuming SEE coating on the dynode surface. Furthermore, aluminum alloys offer intrinsic dopant, in particular magnesium where its oxide provides a higher secondary electron yield than the aluminum oxide. The use of aluminum, its alloys or BeCu material block allows flexibility in design and fabrication of DDEM without an SEE coating process.

Dual low vacuum-ultrahigh vacuum system for large-scale production of micro-channel plate photomultipliers

Systems and methods for the batch production of large numbers of highly uniform multichannel-plate photomultiplier tubes (MCP-PMTs) for large-scale applications are provided. The systems and methods employ dual, nested low-vacuum (LV) and UHV processing in a rapid-cycling, small-footprint, scalable, batch-production facility that is capable of fabricating many MCP-PMTs simultaneously.

Dual low vacuum-ultrahigh vacuum system for large-scale production of micro-channel plate photomultipliers

Systems and methods for the batch production of large numbers of highly uniform multichannel-plate photomultiplier tubes (MCP-PMTs) for large-scale applications are provided. The systems and methods employ dual, nested low-vacuum (LV) and UHV processing in a rapid-cycling, small-footprint, scalable, batch-production facility that is capable of fabricating many MCP-PMTs simultaneously.

IMPROVED REFLECTION MODE DYNODE
20220223393 · 2022-07-14 ·

A device configured to convert or amplify a particle, the conversion or amplification being reliant on the impact of a particle on a surface of the device causing emission of one or more secondary electrons from the same surface. The device includes a carbon-based layer capable of secondary electron emission upon impact of a particle. The surface may be used to convert, for example, an ion into an electron signal, or an electron signal into an amplified electron signal, such as in conversion or amplification dynodes.

BIASED CATHODE ASSEMBLY OF AN X-RAY TUBE WITH IMPROVED THERMAL MANAGEMENT AND A METHOD OF MANUFACTURING SAME

Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.

SYNTHESIS AND USE OF MATERIALS FOR ULTRAVIOLET FIELD-EMISSION LAMPS
20220064001 · 2022-03-03 ·

Processes for synthesizing the hexagonal polymorph of boron nitride (h-BN) produce h-BN of a grade that is highly suitable for ultraviolet (UV) field-emission lights and other UV applications.

Alkali semi-metal films and method and apparatus for fabricating them

Methods and systems for fabricating a film, such as, for example, a photocathode, having a tailored band structure and thin-film components that can be tailored for specific applications, such as, for example photocathode having a high quantum efficiency, and simple components fabricated by those methods.

Alkali semi-metal films and method and apparatus for fabricating them

Methods and systems for fabricating a film, such as, for example, a photocathode, having a tailored band structure and thin-film components that can be tailored for specific applications, such as, for example photocathode having a high quantum efficiency, and simple components fabricated by those methods.