Title:
PHOTOELECTRON MULTIPLIER
Document Type and Number:
WIPO Patent Application WO/2007/119283
Kind Code:
A1
Abstract:
Provided is a photoelectron multiplier having a constitution for improving response
time characteristics. The photoelectron multiplier has an photoelectron multiplying
unit composed of an upper stage unit and a lower stage unit. The lower stage unit
includes rear stage dynodes of dynodes of a plurality stages excepting a first
dynode (DY1), and a pair of insulating support members for holding those rear
stage dynodes in a gripped state. A second dynode (DY2) belonging to the rear stage
dynodes is provided with a partition portion (DY2c) for partitioning the effective
regions of two adjoining electron multiplying channels, so that a sufficient
discharge voltage can be retained without correcting the electron orbits.
Inventors:
OHMURA TAKAYUKI (JP)
KIMURA SUENORI (JP)
KIMURA SUENORI (JP)
Application Number:
PCT/JP2007/052593
Publication Date:
October 25, 2007
Filing Date:
February 14, 2007
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
OHMURA TAKAYUKI (JP)
KIMURA SUENORI (JP)
OHMURA TAKAYUKI (JP)
KIMURA SUENORI (JP)
International Classes:
H01J43/28
Foreign References:
| JPH03173056A | 1991-07-26 | |||
| JPS60220542A | 1985-11-05 | |||
| 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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