公开(公告)号：US20240006142A1

公开(公告)日：2024-01-04

申请号：US18064280

申请日：2022-12-11

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Ruiying SONG ,  Peng CHENG

IPC: H01J3/02 ,  H01J1/02

CPC classification number: H01J3/029 ,  H01J1/025

Abstract: An electron gun may include a cathode with an emitting surface configured to emit electrons. The cathode may include a through hole that goes through the emitting surface and is configured to allow back-streaming electrons of the emitted electrons to pass through. The electron gun may also include an anode configured to attract the emitted electrons from the cathode to the anode and focus the emitted electrons into an electron beam. The electron gun may also include a grid structure configured to facilitate the focusing of the emitted electrons, the grid structure being positioned corresponding to the through hole.

公开(公告)号：US20220087005A1

公开(公告)日：2022-03-17

申请号：US17456882

申请日：2021-11-29

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Shoubo HE ,  Ruiying SONG

IPC: H05H7/22

Abstract: The present disclosure relates to an accelerating apparatus for a radiation device. The accelerating apparatus may include a plurality of acceleration cavity units including a plurality of acceleration cavities. Each of the plurality of acceleration cavity units may be configured to accelerate a radiation beam passing through an acceleration cavity. And the accelerating apparatus may further include a plurality of coupling cavity units each of which may include a coupling cavity. Two adjacent acceleration cavities may be electromagnetically coupled via the coupling cavity. The plurality of acceleration cavity units may have a plurality of holes each of which may be configured to be in fluidic communication with the corresponding coupling cavity. And an edge region of each of at least a portion of the plurality of holes may include continuously varying curvatures.

公开(公告)号：US20200214119A1

公开(公告)日：2020-07-02

申请号：US16729305

申请日：2019-12-28

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Shoubo HE ,  Ruiying SONG

IPC: H05H7/22

Abstract: The present disclosure relates to an accelerating apparatus for a radiation device. The accelerating apparatus may include a plurality of acceleration cavity units including a plurality of acceleration cavities. Each of the plurality of acceleration cavity units may be configured to accelerate a radiation beam passing through an acceleration cavity. And the accelerating apparatus may further include a plurality of coupling cavity units each of which may include a coupling cavity. Two adjacent acceleration cavities may be electromagnetically coupled via the coupling cavity. The plurality of acceleration cavity units may have a plurality of holes each of which may be configured to be in fluidic communication with the corresponding coupling cavity. And an edge region of each of at least a portion of the plurality of holes may include continuously varying curvatures.