公开(公告)号：US20240128042A1

公开(公告)日：2024-04-18

申请号：US18547556

申请日：2022-02-22

Applicant: TWI Limited

Inventor： Colin RIBTON

IPC: H01J37/065 ,  H01J1/18 ,  H01J1/88 ,  H01J3/02

CPC classification number: H01J37/065 ,  H01J1/18 ,  H01J1/88 ,  H01J3/024 ,  H01J2201/19 ,  H01J2203/02

Abstract: The present invention relates to an electron gun cathode mount adapted at one end to secure a thermionic cathode and at the other end to be connected to an attachment member, wherein the electron gun cathode mount is structured so as to be capable of, when in use, reducing heat transfer from the thermionic cathode to the attachment member, and the material forming the electron gun cathode mount has a thermal conductivity of less than 10 Wm−1K−1 at the operating temperature of the thermionic cathode in a direction from the thermionic cathode to the attachment member. The present invention also relates to an electron gun assembly having the electron gun cathode mount installed therein.

公开(公告)号：US20240359254A1

公开(公告)日：2024-10-31

申请号：US18684439

申请日：2022-08-03

Applicant: TWI Limited

Inventor： Colin RIBTON ,  Vitalijs JEFIMOVS

IPC: B23K15/00

CPC classification number: B23K15/002 ,  B23K15/004 ,  B23K15/008

Abstract: A method of electron beam welding a plurality of secondary components to a primary component. The method comprises: (a) on a first weld path which defines a respective section of the primary component to be welded to a first secondary component, forming, by electron beam welding, a spot weld which joins the primary component and the first secondary component at a respective spot weld location on the first weld path; and (b) on a second weld path which defines a respective section of the primary component to be welded to a second secondary component, forming, by electron beam welding, a spot weld which joins together the primary component and the second secondary component at a respective spot weld location on the second weld path. Each of steps (a) and (b) is repeated at least once, in any order, so as to form, on each of the first and second weld paths, a respective set of contiguous spot welds arranged along the respective weld path. Each successive spot weld is formed while one or more of the previous spot welds is solidifying and only after any existing spot weld(s) with which it is contiguous has solidified.