Title:
第１段ダイノード及び光電子増倍管
Document Type and Number:
Japanese Patent JP6695387
Kind Code:
B2
Abstract:
A first-stage dynode is a first-stage dynode to be used in a photomultiplier tube, and includes a bottom wall portion and a pair of side wall portions extending from both end portions of the bottom wall portion in a predetermined direction to one side. An electron emission surface is formed by a bottom surface of the bottom wall portion on the one side and a pair of side surfaces of the pair of side wall portions on the one side, and each of the pair of side surfaces is a curved surface that is curved in a concave shape in a cross section parallel to the predetermined direction.
Inventors:
Yuki Nishimura
Masahiro Kotani
Takanori Ichinomiya
Masahiro Kotani
Takanori Ichinomiya
Application Number:
JP2018108699A
Publication Date:
May 20, 2020
Filing Date:
June 06, 2018
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01J43/24
Domestic Patent References:
| JP50026467A | ||||
| JP9306416A | ||||
| JP2005197112A | ||||
| JP131518C2 |
Other References:
MORILLEAU E.,FR 2092937 A6,フランス,1972年 1月28日
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenichi Shibayama
Yoshiki Kuroki
Kenichi Shibayama