Title:
FIRST-STAGE DYNODE AND PHOTOMULTIPLIER TUBE
Document Type and Number:
WIPO Patent Application WO/2019/235300
Kind Code:
A9
Abstract:
The first-stage dynode is for use in a photomultiplier tube. The first-stage dynode is provided with: a bottom wall section; and one pair of sidewall sections respectively extending toward one side from both edges of the bottom wall section in a predetermined direction. An electron emission surface is configured with a bottom surface located on one side of the bottom wall section and one pair of side surfaces located on the one side of the one pair of sidewall sections, wherein each of the side surfaces is formed as a concave curved surface when viewed in a cross-section parallel to the predetermined direction.
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Inventors:
NISHIMURA YUKI (JP)
KOTANI MASAHIRO (JP)
ICHINOMIYA TAKANORI (JP)
KOTANI MASAHIRO (JP)
ICHINOMIYA TAKANORI (JP)
Application Number:
PCT/JP2019/021104
Publication Date:
January 30, 2020
Filing Date:
May 28, 2019
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
H01J43/20; H01J43/24; H01J43/26
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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