公开(公告)号：US20230147125A1

公开(公告)日：2023-05-11

申请号：US17917982

申请日：2021-01-28

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Dai HARAGUCHI ,  Yoshito HASEGAWA

IPC: G21K5/04 ,  H01J1/13

CPC classification number: G21K5/04 ,  H01J1/13

Abstract: Disclosed is an electron beam generation source including: an electron discharge part extending on a desired axis and configured to discharge electrons; a support part electrically connected to a power supply device that supplies electric power to the electron discharge part; a tension holding part connected between one end of the electron discharge part and the support part and configured to hold tension of the electron discharge part with a pressing force or a tensile force; and a power supply path part having one end electrically connected to the support part and the other end electrically connected to the one end of the electron discharge part. An electric resistance value of the tension holding part is larger than an electric resistance value of the power supply path part.

公开(公告)号：US20230148363A1

公开(公告)日：2023-05-11

申请号：US17917977

申请日：2021-01-28

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Dai HARAGUCHI ,  Yoshito HASEGAWA

IPC: H01J35/06

CPC classification number: H01J35/064 ,  H01J2235/064

Abstract: Disclosed is an electron beam generation source including: an electron discharge part extending on a desired axis and configured to discharge electrons; a movable part connected to one end of the electron discharge part; a support part configured to support the movable part to be movable along the axis; and a tension holding part configured to hold tension of the electron discharge part by applying a pressing force or a tensile force to the movable part. The movable part and the tension holding part are disposed on the axis.

公开(公告)号：US20230123985A1

公开(公告)日：2023-04-20

申请号：US17915198

申请日：2021-01-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Hiroki KAWAKAMI ,  Kazumi KAGEYAMA ,  Yoshito HASEGAWA

IPC: H01J35/18 ,  H01J35/08

Abstract: An X-ray generation device includes: an electron gun that emits an electron beam; a target portion in which a plurality of elongated targets that generate an X-ray because of incidence of the electron beam are disposed parallel to each other; a housing that accommodates the electron gun and the target portion; and an X-ray emission window provided in the housing to emit the X-ray generated in the target portion, to an outside of the housing. The targets are disposed on the target portion to face the electron gun at a predetermined inclination angle with respect to an emission axis of the electron beam. The X-ray emission window is disposed at a position where the X-ray generated in a direction perpendicular to the target portion is transmittable through the X-ray emission window, to face the target portion at a predetermined inclination angle.