Title:
アルカリ金属発生剤、アルカリ金属発生器、光電面の製造方法、二次電子放出面の製造方法及び電子管の製造方法
Document Type and Number:
Japanese Patent JP4440887
Kind Code:
B2
Abstract:
The present invention relates to an alkali metal generating agent and others for formation of a photo-cathode or a secondary-electron emitting surface capable of stably generating an alkali metal. The alkali metal generating agent is used in formation of a photo-cathode for emitting a photoelectron corresponding to incident light, or in formation of a secondary-electron emitting surface for emitting secondary electrons corresponding to an incident electron. Particularly, the alkali metal generating agent contains at least an oxidizer comprising at least one vanadate with an alkali metal ion as a counter cation, and a reducer for reducing the ion. An alkali metal generating device comprises at least the alkali metal generating agent and a case housing it, and the case is provided with a discharge port for discharging the vapor of the alkali metal.
Inventors:
Takashi Watanabe
Yoshiaki Akai
Shiro Sakai
Yoshiaki Akai
Shiro Sakai
Application Number:
JP2005508054A
Publication Date:
March 24, 2010
Filing Date:
January 16, 2004
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01J9/12; C22B5/04; C22B26/10; C23C14/14; C23C14/24; H01J1/32; H01J1/34; H01J1/35; H01J29/38; H01J31/50; H01J40/06; H01J43/08; H01J43/18
Domestic Patent References:
| JP55078438A | ||||
| JP48020944B1 | ||||
| JP47015976B1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Satoru Ishida
Shiro Terasaki
Satoru Ishida