公开(公告)号：US20240274421A1

公开(公告)日：2024-08-15

申请号：US18109388

申请日：2023-02-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Yasuyuki EGAWA ,  Atsuhito FUKASAWA ,  Suenori KIMURA ,  Takayasu NAGASAWA ,  Shunsuke KOBAYASHI

IPC: H01J43/28 ,  H01J43/08

CPC classification number: H01J43/28 ,  H01J43/08

Abstract: An electron tube includes a photoelectric conversion unit, an electron detection unit configured to receive a photoelectrons from the photoelectric conversion unit, a gate electrode disposed between the photoelectric conversion unit and the electron detection unit, and a housing configured to accommodate the photoelectric conversion unit, the electron detection unit, and the gate electrode. The housing has a lid portion to which the photoelectric conversion unit is fixed and which constitutes one end side of the housing. The gate electrode includes a main body portion that control passage of the photoelectrons by applying a voltage, and a power supply part that supports the main body portion so as to be spaced apart from the photoelectric conversion unit and applies a voltage to the main body portion. The power supply part is held by the lid portion.