Title:
【発明の名称】光電子増倍管
Document Type and Number:
Japanese Patent JP2925020
Kind Code:
B2
Abstract:
A venetian-blind type of photomultiplier tube comprising a photocathode (3) for converting incident light into photoelectrons, a venetian-blind type of dynode array (5) comprising a plurality of dynode rows (51,52,...5n) arranged one after the other in a first direction, each row comprising a plurality of dynode elements (7) arranged at a constant pitch in a second direction, transverse to the first direction, and each dynode element (7) having the form of a plate inclined to the first direction. The photomultiplier tube also includes an anode array (6) comprising plural anodes arranged in the second direction for collecting the secondary electrons emitted from the dynode array (5) and for outputting an amplified electrical signal corresponding to the incident light, and one or more electron focusing electrodes (8) for converging at least one stream of the photoelectrons and the secondary electrons and concentrically directing the converged stream to a predetermined portion of their respective dynode elements. The electron-flight control member (8) may have the form of a grid, strip, mesh and/or multi-aperture structure.
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Inventors:
KUSHIMA HIROYUKI
Application Number:
JP29334589A
Publication Date:
July 26, 1999
Filing Date:
November 10, 1989
Export Citation:
Assignee:
HAMAMATSU HOTONIKUSU KK
International Classes:
H01J43/04; H01J43/22; H01J43/06; (IPC1-7): H01J43/22
Domestic Patent References:
| JP6471051A | ||||
| JP1189846A | ||||
| JP461214A |
Attorney, Agent or Firm:
Toshiaki Furusawa (1 outside)