公开(公告)号：US11948769B2

公开(公告)日：2024-04-02

申请号：US18261645

申请日：2023-01-12

Applicant: Applied Physics Technologies, Inc.

Inventor： Gerald G. Magera ,  Aaron M. Torok ,  Joel A. Wenrich ,  Matthew C. Zappe

IPC: H01J1/16 ,  H01J9/04 ,  H05B3/14

CPC classification number: H01J1/16 ,  H01J9/042 ,  H05B3/145

Abstract: A monolithic graphite heater for heating a thermionic electron cathode includes first and second electrically conductive arms, each one of the first and second electrically conductive arms having an electrode mount at a proximal end, a thermal apex at a distal end, and a transitional region between the electrode mount and the thermal apex; a cathode mount electrically and mechanically coupling each thermal apex to form a maximum Joule-heating region at or adjacent the cathode mount and decreasing Joule heating along each transitional region; and a press-fit aperture formed in the cathode mount, the press-fit aperture sized to receive at least a portion of the thermionic electron cathode for facilitating thermionic emission produced therefrom in response to operative heat power generation provided by the maximum Joule-heating region.

公开(公告)号：US12237138B2

公开(公告)日：2025-02-25

申请号：US18596561

申请日：2024-03-05

Applicant: Applied Physics Technologies, Inc.

Inventor： Gerald G. Magera ,  Aaron M. Torok ,  Joel A. Wenrich ,  Matthew C. Zappe

IPC: H01J1/16 ,  H01J9/04 ,  H05B3/14

Abstract: A monolithic graphite heater for heating a thermionic electron cathode includes first and second electrically conductive arms, each one of the first and second electrically conductive arms having an electrode mount at a proximal end, a thermal apex at a distal end, and a transitional region between the electrode mount and the thermal apex; a cathode mount electrically and mechanically coupling each thermal apex to form a maximum Joule-heating region at or adjacent the cathode mount and decreasing Joule-heating along each transitional region; and a press-fit aperture formed in the cathode mount, the press-fit aperture sized to receive at least a portion of the thermionic electron cathode for facilitating thermionic emission produced therefrom in response to operative heat power generation provided by the maximum Joule-heating region.