公开(公告)号：US20220230833A1

公开(公告)日：2022-07-21

申请号：US17556212

申请日：2021-12-20

Applicant: Moxtek, Inc.

Inventor： Kasey Otho Greenland ,  Eric Miller ,  Scott Howard Hardy ,  Todd S. Parker

IPC: H01J35/18 ,  H01J35/32

Abstract: A target for an x-ray tube can emit x-rays in response to impinging electrons. Some electrons rebound without interacting atomically to form x-rays. Problems of these non-interacting electrons include reduced x-ray flux, charging electrically-insulative components of the x-ray tube, and misdirecting the electron beam. The target can include an array of holes, an array of posts, or both. The holes/posts can increase electron interaction with material of the target. Consequently, a higher percentage of impinging electrons can form x-rays. The holes/posts can also allow the target to effectively generate x-rays of different energies by providing a target with multiple thicknesses. X-rays can be generated in thicker regions of the target with the x-ray tube operated at a larger voltage. X-rays can be generated in thinner regions of the target with the x-ray tube operated at a smaller voltage.

公开(公告)号：US10964507B2

公开(公告)日：2021-03-30

申请号：US16387455

申请日：2019-04-17

Applicant: Moxtek, Inc.

Inventor： David S. Hoffman ,  Vincent F. Jones ,  Eric Miller

IPC: H01J35/16 ,  H05G1/06

Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.

公开(公告)号：US10602600B2

公开(公告)日：2020-03-24

申请号：US16173204

申请日：2018-10-29

Applicant: Moxtek, Inc.

Inventor： Ricky B. Steck ,  Gordon Ernest Smith ,  Eric Miller ,  David S. Hoffman

IPC: H05G1/06 ,  H05G1/10

Abstract: An x-ray source can include a housing with material with an atomic number of ≥42 and a thermal conductivity of ≥3 W/(m*K) to assist in removing heat from the x-ray source and to block x-rays emitted in undesirable directions. An x-ray source can include a shell that is electrically conductive and that encloses at least part of a voltage multiplier without enclosing a control circuit to minimize or eliminate electromagnetic interference in the control circuitry caused by the voltage multiplier. An x-ray source can include a negative voltage multiplier, a positive voltage multiplier, and a ground plane between the negative voltage multiplier and the positive voltage multiplier. The ground plane can minimize or eliminate electromagnetic interference between the negative voltage multiplier and the positive voltage multiplier. An air-filled channel, associated with the ground plane, can reduce weight of the x-ray source.

公开(公告)号：US10529529B2

公开(公告)日：2020-01-07

申请号：US15424270

申请日：2017-02-03

Applicant: Moxtek, Inc.

Inventor： Dustin Peterson ,  Richard Zimmerman ,  Vince Jones ,  Eric Miller

IPC: H01J35/14 ,  H01J35/16 ,  H01J37/065 ,  H01J35/06 ,  H01J37/21 ,  H01J37/063 ,  H01J37/15 ,  H05G1/52

Abstract: Electron beam spot characteristics can be tuned in each x-ray tube by moving a focusing-ring along a longitudinal-axis of the x-ray tube. The focusing-ring can then be immovably fastened to the x-ray tube.An x-ray source can include an x-ray tube and a focusing-ring. The focusing-ring can at least partially encircle an electron-emitter, a cathode, an evacuated-enclosure, or combinations thereof. The focusing-ring can be located outside of a vacuum of the evacuated enclosure. The focusing-ring can adjust an electron-beam spot on a target material of the x-ray tube when moved along a longitudinal-axis extending linearly from the electron-emitter to the target material.

公开(公告)号：US10453643B2

公开(公告)日：2019-10-22

申请号：US15419620

申请日：2017-01-30

Applicant: Moxtek, Inc.

Inventor： Dustin Peterson ,  Richard Zimmerman ,  Rick Steck ,  Vince Jones ,  Eric Miller

IPC: H01J35/18 ,  H01J35/16 ,  H01J35/06 ,  H01J37/16 ,  H01J35/08

Abstract: A transmission-target x-ray tube can include an x-ray window mounted on a window-housing. The window-housing can be made of a high density material (e.g. ≥12 g/cm3) with a high atomic number (e.g. ≥45), and can include an aperture with an increasing-inner-diameter region, with a smaller diameter closer to the electron-emitter and a larger diameter closer to the window-mount, for blocking x-rays and electrons. An example angle in the increasing-inner-diameter region is between 15 degrees and 35 degrees. The x-ray tube can further comprise a window-cap. The x-ray window can be sandwiched between the window-housing and the window-cap. The window-cap can be made of a high density material (e.g. ≥12 g/cm3) with a high atomic number (e.g. ≥45) for blocking x-rays in undesirable directions, and can include an aperture for allowing x-rays to transmit in desirable directions.

公开(公告)号：US20160066400A1

公开(公告)日：2016-03-03

申请号：US14925490

申请日：2015-10-28

Applicant: Moxtek, Inc.

Inventor： Eric Miller ,  Steven West Wilson ,  Sanjay Kamtekar ,  Bill Hansen ,  Brad Harris

IPC: H05F3/04 ,  H05G1/02 ,  H01J9/00

CPC classification number: H05F3/04 ,  H01J9/00 ,  H01J9/241 ,  H01J2235/086

Abstract: The invention includes a flat-panel-display (FPD) manufacturing machine which utilizes x-rays for electrostatic dissipation of a bottom side of a FPD when lifting the FPD off of a table during manufacture of the FPD. The invention also includes a method of electrostatic dissipation of a bottom side of an FPD.

Abstract translation: 本发明包括一个平板显示器（FPD）制造机，它在制造FPD期间将FPD从桌子上提起时，利用X射线来对FPD的底侧进行静电消散。 本发明还包括FPD的底侧的静电耗散的方法。

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.

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.

公开(公告)号：US20220093358A1

公开(公告)日：2022-03-24

申请号：US17408930

申请日：2021-08-23

Applicant: Moxtek, Inc.

Inventor： Eric Miller ,  Mike Ossofsky

IPC: H01J35/08 ,  H01J35/06 ,  H01J35/18

Abstract: An x-ray source can have increased x-ray flux and can simultaneously provide characteristic peaks and from multiple, different chemical elements. The target can include multiple layers of different chemical compositions. These layers can be distinguished by a higher atomic number, a higher energy K-alpha x-ray characteristic line, and a higher density in one layer compared to another layer. The layer that is lower in these characteristics can face the x-ray window. The layers can be formed by sputter deposition.

公开(公告)号：US11195687B2

公开(公告)日：2021-12-07

申请号：US17181466

申请日：2021-02-22

Applicant: Moxtek, Inc.

Inventor： David S. Hoffman ,  Vincent F. Jones ,  Eric Miller

IPC: H01J35/16 ,  H05G1/06

Abstract: A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply.