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公开(公告)号：US11728120B2
公开(公告)日：2023-08-15
申请号：US17572132
申请日：2022-01-10
Applicant: Moxtek, Inc.
Inventor： Eric Miller
IPC: H01J35/06
CPC classification number: H01J35/064
Abstract: A planar filament 11f can include multiple materials to increase electron emission in desired directions and to suppress electron emission in undesired directions. The filament 11f can include a core-material CM between a top-material TM and a bottom-material BM. The top-material TM can have a lowest work function WFt; the bottom-material BM can have a highest work function WFb; and the core-material CM can have an intermediate work function WFc(WFt Wb). This shape makes it easier to coat the edges 31e with the bottom-material BM, because the edges 31e tilt toward and partially face the sputter target. This shape also helps direct more electrons to a center of the target 14, and reduce electron emission in undesired directions.
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公开(公告)号：US20230236347A1
公开(公告)日：2023-07-27
申请号：US18095322
申请日：2023-01-10
Applicant: Moxtek, Inc.
Inventor： Matthew C. George , Daniel Bacon-Brown , R. Stewart Nielson , Shaun Patrick Ogden
IPC: G02B5/30
CPC classification number: G02B5/3058
Abstract: The reflective wire grid polarizers herein can withstand ultraviolet light without rapid degradation and can have high performance in the ultraviolet spectrum. In one example, each wire can include a metal layer, a pair of low index layers, a silicon layer, and a high index layer. The metal layer can be sandwiched between the pair of low index layers. The metal layer and the pair of low index layers can be sandwiched between the silicon layer and the high index layer. In another example, each wire can include a metal layer and a silicon layer. The silicon layer can be thicker than the metal layer. Thus, the silicon layer can be relatively thick, and can be the main polarizing component of the wire. The metal layer can be added for increased reflectance.
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公开(公告)号：US20230232521A1
公开(公告)日：2023-07-20
申请号：US18082922
申请日：2022-12-16
Applicant: Moxtek, Inc.
Inventor： David Hoffman
CPC classification number: H05G1/10 , H01F27/2804 , H01J35/025 , H05K1/032 , H05K1/165 , H01J2235/02 , H05K2201/0154
Abstract: In an x-ray source, an isolation circuit can isolate bias voltage at a cathode from a bias voltage at an alternating current source (AC source). The isolation circuit can transfer alternating current from the AC source to the cathode. The isolation circuit can be made repeatedly with minimal variation or failed parts, can be light, and can be small. The isolation circuit can include planar transformer(s). Each planar transformer can include a primary trace on a primary circuit board and a secondary trace on a secondary circuit board. The primary trace and the secondary trace can each include a spiral shape. The primary trace can be located in close proximity to the secondary trace such that alternating electrical current through the primary trace will induce alternating electrical current through the secondary trace.
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公开(公告)号：US11688578B2
公开(公告)日：2023-06-27
申请号：US17500403
申请日：2021-10-13
Applicant: Moxtek, Inc.
Inventor： Todd S. Parker , Kasey Otho Greenland
IPC: H01J35/16
CPC classification number: H01J35/16 , H01J2235/02 , H01J2235/16
Abstract: An x-ray tube 10 can have (a) an enclosure electrically-insulating a cathode 11 from an anode 12; (b) a coating-ring 18 on an inner-face of the enclosure, the coating-ring 18 encircling a longitudinal-axis 16 of the enclosure; and (c) an interruption-ring 19 located at the inner-face of the enclosure at a different location than the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different location along the longitudinal-axis 16 with respect to the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different radius from the longitudinal-axis 16 than the coating-ring 18. The coating-ring 18 and the interruption-ring 19 can reduce uneven electrical charge build-up on the inner-face of the enclosure, and can protect the triple-point.
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公开(公告)号：US11683879B2
公开(公告)日：2023-06-20
申请号：US17316838
申请日：2021-05-11
Applicant: Moxtek, Inc.
Inventor： Rick Steck , Scott Hardy , Vincent F. Jones
Abstract: A raster scanning x-ray source can be light and small, and can have high resolution. A raster-assembly can be attached directly to and can encircle an x-ray tube. The raster-assembly can adjoin or can be very close to the x-ray tube, resulting in a small and lightweight scanning x-ray source. X-rays can backscatter back into the x-ray tube instead of into a detector, thus improving resolution of the resulting image. A voltage-multiplier, which can be used with the x-ray source, can include separate voltage-multiplier-stages in a stack.
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Patent Agency Ranking
公开(公告)号：US20220406557A1
公开(公告)日：2022-12-22
申请号：US17746103
申请日：2022-05-17
Applicant: Moxtek, Inc.
Inventor： Kasey Otho Greenland
Abstract: A collimator for an x-ray tube can be a monolithic, integral structure. The collimator can include a proximal-end closest to a cathode and a distal-end farthest from the cathode. The proximal-end can adjoin a vacuum inside of the x-ray tube. The distal-end can adjoin the air. The collimator can include an aperture extending therethrough. An x-ray window can be mounted across the aperture. The aperture can include a collimation-region between the x-ray window and the distal-end, and a drift-region between the x-ray window and the proximal-end. X-rays can be generated inside of the collimator.
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公开(公告)号：US20220254594A1
公开(公告)日：2022-08-11
申请号：US17572132
申请日：2022-01-10
Applicant: Moxtek, Inc.
Inventor： Eric Miller
IPC: H01J35/06
Abstract: A planar filament 11f can include multiple materials to increase electron emission in desired directions and to suppress electron emission in undesired directions. The filament 11f can include a core-material CM between a top-material TM and a bottom-material BM. The top-material TM can have a lowest work function WFt; the bottom-material BM can have a highest work function WFb; and the core-material CM can have an intermediate work function WFc(WFt Wb). This shape makes it easier to coat the edges 31e with the bottom-material BM, because the edges 31e tilt toward and partially face the sputter target. This shape also helps direct more electrons to a center of the target 14, and reduce electron emission in undesired directions.
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公开(公告)号：US20220179145A1
公开(公告)日：2022-06-09
申请号：US17523182
申请日：2021-11-10
Applicant: Moxtek, Inc.
Inventor： Daniel Bacon-Brown
IPC: G02B5/30
Abstract: The waveplates herein (A) can have high performance across a broad wavelength range and broad range of incident angles; (B) can be thin; and (C) can withstand a high temperature. The waveplates can include ribs 12 on a substrate 11 with a channel 13 between each pair of adjacent ribs 12. Each rib 12 can include the following layers in the following order moving outward from the substrate: a bottom-medium-layer BM (nBM), a high-layer H (nH), then a top-medium-layer TM (nTM). Each rib 12 can be located on a bottom-low-layer BL (nBL). A top-low-layer TL (nTL) can be located on a face TMF of the top-medium-layer TM farthest from the substrate 11. Relationships between indices of refraction of these layers can be nBL
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公开(公告)号：US20220172918A1
公开(公告)日：2022-06-02
申请号：US17671861
申请日：2022-02-15
Applicant: Moxtek, Inc.
Inventor： Jared Sommer , Jonathan Abbott
IPC: H01J35/18 , C09J161/00 , C09J167/00 , G01T1/16 , H01J5/18
Abstract: An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.
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公开(公告)号：US20220148841A1
公开(公告)日：2022-05-12
申请号：US17500403
申请日：2021-10-13
Applicant: Moxtek, Inc.
Inventor： Todd S. Parker , Kasey Otho Greenland
IPC: H01J35/16
Abstract: An x-ray tube 10 can have (a) an enclosure electrically-insulating a cathode 11 from an anode 12; (b) a coating-ring 18 on an inner-face of the enclosure, the coating-ring 18 encircling a longitudinal-axis 16 of the enclosure; and (c) an interruption-ring 19 located at the inner-face of the enclosure at a different location than the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different location along the longitudinal-axis 16 with respect to the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different radius from the longitudinal-axis 16 than the coating-ring 18. The coating-ring 18 and the interruption-ring 19 can reduce uneven electrical charge build-up on the inner-face of the enclosure, and can protect the triple-point.
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