Title:
PHOTOMULTIPLIER
Document Type and Number:
WIPO Patent Application WO/2007/129492
Kind Code:
A1
Abstract:
Provided is a photomultiplier having a structure for improving response time characteristics.
An electron multiplier section of the photomultiplier is provided with an upper
unit (200) and a lower unit. The upper unit includes a focusing electrode (230),
a mesh electrode (220) and a first dynode (DY1) where photoelectrons from a photocathode
reach among dynodes at a plurality of levels. The upper unit further includes
a partitioning plate (210) for partitioning an effective area for a plurality
of electron multiplier channels allotted along the longitudinal direction
of the first dynode (DY1) so as to prevent cross talk between the adjacent electron
multiplier channels.
Inventors:
OHMURA TAKAYUKI (JP)
YAMAGUCHI TERUHIKO (JP)
YAMAGUCHI TERUHIKO (JP)
Application Number:
PCT/JP2007/052595
Publication Date:
November 15, 2007
Filing Date:
February 14, 2007
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
OHMURA TAKAYUKI (JP)
YAMAGUCHI TERUHIKO (JP)
OHMURA TAKAYUKI (JP)
YAMAGUCHI TERUHIKO (JP)
International Classes:
H01J43/28
Foreign References:
| JPH08306335A | 1996-11-22 | |||
| JPH11250853A | 1999-09-17 |
Attorney, Agent or Firm:
HASEGAWA, Yoshiki et al. (Ginza First Bldg. 10-6Ginza 1-chom, Chuo-ku Tokyo 61, JP)
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