Title:
光電陰極
Document Type and Number:
Japanese Patent JP4002167
Kind Code:
B2
Abstract:
The invention relates to a photocathode having a structure that permits a decrease in the radiant sensitivity at low temperatures is suppressed so that the S/N ratio is improved. In the photocathode, a light absorbing layer is formed on the upper layer of a substrate. An electron emitting layer is formed on the upper layer of the light absorbing layer. A contact layer having a striped-shape is formed on the upper layer of the electron emitting layer. A surface electrode composed of metal is formed on the surface of the contact layer. The interval between bars in the contact layer is adjusted so as to become 0.2 mum or more but 2 mum or less.
Inventors:
Toru Hirohata
Minoru Arakaki
Tomoko Mochizuki
Masami Yamada
Minoru Arakaki
Tomoko Mochizuki
Masami Yamada
Application Number:
JP2002331142A
Publication Date:
October 31, 2007
Filing Date:
November 14, 2002
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01J1/34; H01J40/06; H01J43/08; H01L29/06
Domestic Patent References:
| JP11297191A | ||||
| JP11233000A | ||||
| JP7050149A | ||||
| JP5504652A | ||||
| JP4269419A | ||||
| JP7262909A | ||||
| JP2002184302A | ||||
| JP2001507498A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Tatsuya Shioda
Shiro Terasaki
Tatsuya Shioda
Shiro Terasaki