Title:
TRANSMITTING TYPE SECONDARY ELECTRON SURFACE AND ELECTRON TUBE
Document Type and Number:
WIPO Patent Application WO/2003/077271
Kind Code:
A1
Abstract:
A transmitting type secondary electron surface comprising a secondary electron discharge layer (1) formed of diamond or a material mainly containing diamond, a support frame (21) for reinforcing the mechanical strength of the secondary electron discharge layer (1), a first electrode (31) provided for the incident surface of the secondary electron discharge layer (1), and a second electrode (32) provided for the outgoing surface of the secondary electron discharge layer (1). Voltage is applied between the incident surface and the outgoing surface of the secondary electron discharge layer (1) to form an electric field inside the secondary electron discharge layer (1). When primary electrons are incident to form secondary electrons inside the secondary electron discharge layer (1), secondary electrons are accelerated in an outgoing direction by the electric field formed inside the secondary electron discharge layer (1) to be discharged to the outside of a transmitting type secondary electron surface. Accordingly, a transmitting type secondary electron surface capable of efficiently emitting secondary electrons as a result of incident primary electrons, and an electron tube using it are realized.
Inventors:
Niigaki, Minoru c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Uchiyama, Shoichi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Kan, Hirofumi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Uchiyama, Shoichi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Kan, Hirofumi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Application Number:
PCT/JP2003/001992
Publication Date:
September 18, 2003
Filing Date:
February 24, 2003
Export Citation:
Assignee:
HAMAMATSU PHOTONICS K.K. (1126-1, Ichino-cho Hamamatsu-shi, Shizuoka, 435-8558, JP)
Niigaki, Minoru c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Uchiyama, Shoichi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Kan, Hirofumi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Niigaki, Minoru c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Uchiyama, Shoichi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
Kan, Hirofumi c/o Hamamatsu Photonics K.K. (1126-1 Ichino-ch, Hamamatsu-shi Shizuoka, 435-8558, JP)
International Classes:
H01J1/35; H01J1/32; H01J29/02; H01J29/48; H01J31/12; H01J31/50; H01J43/22; H01J1/02; H01J29/02; H01J29/48; H01J31/08; H01J31/12; H01J43/00; (IPC1-7): H01J1/32; H01J31/12; H01J31/50; H01J43/22
Attorney, Agent or Firm:
Hasegawa, Yoshiki (SOEI PATENT AND LAW FIRM, Ginza First Bldg. 10-6, Ginza 1-chom, Chuo-ku Tokyo, 104-0061, JP)
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