Title:
電子増倍管
Document Type and Number:
Japanese Patent JP4249548
Kind Code:
B2
Abstract:
A venetian blind dynode 5A of the first stage collects incident electrons efficiently, multiplies these electrons, and emits the multiplied secondary electrons to a metal channel dynode 5B of the second stage. By metal channel dynodes 5B of the second stage onward successively multiplying the incident secondary electrons efficiently, the secondary electrons, which are multiplied in multiple stages, are detected efficiently as an electrical signal. Since the layered state of metal channel dynodes 5B of the second stage onward can be made thin, the total length of the dynode unit in the layering direction can be made short and compact.
Inventors:
Hiroyuki Hanai
Kimura Suenori
Kimura Suenori
Application Number:
JP2003172494A
Publication Date:
April 02, 2009
Filing Date:
June 17, 2003
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01J43/18; H01J43/22
Domestic Patent References:
| JP62040147A | ||||
| JP2291657A | ||||
| JP2000003693A |
Foreign References:
| US3229142 | ||||
| US2866914 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Satoru Ishida
Shiro Terasaki
Satoru Ishida