公开(公告)号：US20220238293A1

公开(公告)日：2022-07-28

申请号：US17572871

申请日：2022-01-11

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi ISHII ,  Akihito KOBAYASHI

IPC: H01J35/18 ,  H01J35/06

Abstract: An X-ray module includes a housing in which an opening portion is formed; an electron gun that emits an electron beam; a target that transmits an X-ray generated when the electron beam is incident on the target and emits the X-ray from an X-ray-emitting surface; an X-ray-emitting window that seals the opening portion, and that transmits the X-ray and emits the X-ray to a first side in an axial direction; and a heat radiating unit disposed outside the housing. The housing includes a surface on which a protrusion protruding to the first side is formed, the opening portion is formed in the protrusion, and the target is disposed in the opening portion. The heat radiating unit includes a first portion extending along the surface and thermally connected to the surface, and a second portion extending from the first portion to a second side opposite the first side.

公开(公告)号：US20230290604A1

公开(公告)日：2023-09-14

申请号：US18140223

申请日：2023-04-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi ISHII ,  Ginji SUGIURA ,  Akihito KOBAYASHI

IPC: H01J35/14 ,  H05G1/02

CPC classification number: H01J35/153 ,  H05G1/025 ,  H01J2235/1291 ,  H01J2235/1216 ,  H01J2235/1245

Abstract: An X-ray module includes; a housing; an electron gun that emits an electron beam inside the housing; a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; a permanent magnet that is disposed outside the housing and deflects the electron beam by means of a magnetic force; and a heat radiating unit having a higher thermal conductivity than a thermal conductivity of the permanent magnet and thermally connected to the permanent magnet.

公开(公告)号：US20220238292A1

公开(公告)日：2022-07-28

申请号：US17569686

申请日：2022-01-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi ISHII ,  Ginji SUGIURA ,  Akihito KOBAYASHI

IPC: H01J35/14 ,  H05G1/02

Abstract: An X-ray module includes a housing; an electron gun that emits an electron beam inside the housing; a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; and a deflection unit including a permanent magnet and disposed outside the housing, to deflect the electron beam by means of a magnetic force of the permanent magnet. The deflection unit includes a heat insulating member disposed at least between the permanent magnet and the housing. A thermal conductivity of the heat insulating member is lower than a thermal conductivity of the permanent magnet.

公开(公告)号：US20210029809A1

公开(公告)日：2021-01-28

申请号：US17040140

申请日：2019-02-18

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi ISHII ,  Akihito KOBAYASHI

IPC: H05G1/06 ,  H05G1/26 ,  H01J35/16

Abstract: An X-ray generator includes an X-ray tube, an X-ray tube accommodation portion, and a power source unit having an internal substrate supplying a voltage to the X-ray tube sealed inside an insulating block. A first space is defined by an upper surface of the insulating block and an inner surface of the X-ray tube accommodation portion. A second space is defined by a recess portion opening to the outside formed on a side surface of the insulating block and a sealing member sealing an opening of the recess portion. A communication hole causing the first space and the second space to communicate with each other is provided in the insulating block. Insulating oil is enclosed in the first space and the second space. A depth of the recess portion is smaller than a width of the recess portion.